6396 Commits
Author | SHA1 | Message | Date | |
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Linus Torvalds
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828f3e18e1 |
ARM/SoC: drivers for v5.7
These are updates to SoC specific drivers that did not have another subsystem maintainer tree to go through for some reason: - Some bus and memory drivers for the MIPS P5600 based Baikal-T1 SoC that is getting added through the MIPS tree. - There are new soc_device identification drivers for TI K3, Qualcomm MSM8939 - New reset controller drivers for NXP i.MX8MP, Renesas RZ/G1H, and Hisilicon hi6220 - The SCMI firmware interface can now work across ARM SMC/HVC as a transport. - Mediatek platforms now use a new driver for their "MMSYS" hardware block that controls clocks and some other aspects in behalf of the media and gpu drivers. - Some Tegra processors have improved power management support, including getting woken up by the PMIC and cluster power down during idle. - A new v4l staging driver for Tegra is added. - Cleanups and minor bugfixes for TI, NXP, Hisilicon, Mediatek, and Tegra. Signed-off-by: Arnd Bergmann <arnd@arndb.de> -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAl7XvgAACgkQmmx57+YA GNmj/hAAnAJ/hYehLfgCe711HUntgeRkaoTVpCt8BJNMdxsa23sn3V6k5+WYn1uG PtlgpefZEMHLUEEVDegR4nZXLG0Pzu1SR12KW34YPcQKkNo/+vlQ9zYUajnJ/KX6 10zdLSIzHfk1VtXKvvQQ8xFyE+S/trGmjC57E6gfoCUT3rl1maD+ccVXUBaz9oob wuMxGXQAl57mio5yT1OfSk6Fev39xRE2dN1hzP7KUYhsemZajBwBBW5wVJZCsCB8 LCGmxVkavM7BV4r2NokbBDs5rlfedBl/P/IPd9Is5a5tuGUkSsVRG9zqShxYLGM3 S06az6POQFwXKFJoUKW0dK/Koy0D7BK+vhUBPzFv4HZ8iDCVf6Jju2MJ02GMqHPj OOrXaCbLYrvN/edVUWeeFywqwMbYTRwC4DxyTq5m7HxEB004xTOhs0rX5aR0u4n1 bbsR97LguolwH9iEMzd3F3jCiKBcMecH3lAh5WcrtwlFIRrNhbWoGDoA/4TuORFS b11rgsTRIJ5Vc++D1HnSnx0ZZvUzyluMvygdALnSgVah6xYe6KVw9Kg/wioAJ04G uSTidqP3qRhsyET2HQo7CxdVfZbKfP25iKCKrdhQziztKvhF8qrUmZKloXOodRw+ ewYSRmv8c324OYYit1X43oAdW8dntq1XbSIauaqxEb4JC7x/xRY= =44Jc -----END PGP SIGNATURE----- Merge tag 'arm-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM/SoC driver updates from Arnd Bergmann: "These are updates to SoC specific drivers that did not have another subsystem maintainer tree to go through for some reason: - Some bus and memory drivers for the MIPS P5600 based Baikal-T1 SoC that is getting added through the MIPS tree. - There are new soc_device identification drivers for TI K3, Qualcomm MSM8939 - New reset controller drivers for NXP i.MX8MP, Renesas RZ/G1H, and Hisilicon hi6220 - The SCMI firmware interface can now work across ARM SMC/HVC as a transport. - Mediatek platforms now use a new driver for their "MMSYS" hardware block that controls clocks and some other aspects in behalf of the media and gpu drivers. - Some Tegra processors have improved power management support, including getting woken up by the PMIC and cluster power down during idle. - A new v4l staging driver for Tegra is added. - Cleanups and minor bugfixes for TI, NXP, Hisilicon, Mediatek, and Tegra" * tag 'arm-drivers-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (155 commits) clk: sprd: fix compile-testing bus: bt1-axi: Build the driver into the kernel bus: bt1-apb: Build the driver into the kernel bus: bt1-axi: Use sysfs_streq instead of strncmp bus: bt1-axi: Optimize the return points in the driver bus: bt1-apb: Use sysfs_streq instead of strncmp bus: bt1-apb: Use PTR_ERR_OR_ZERO to return from request-regs method bus: bt1-apb: Fix show/store callback identations bus: bt1-apb: Include linux/io.h dt-bindings: memory: Add Baikal-T1 L2-cache Control Block binding memory: Add Baikal-T1 L2-cache Control Block driver bus: Add Baikal-T1 APB-bus driver bus: Add Baikal-T1 AXI-bus driver dt-bindings: bus: Add Baikal-T1 APB-bus binding dt-bindings: bus: Add Baikal-T1 AXI-bus binding staging: tegra-video: fix V4L2 dependency tee: fix crypto select drivers: soc: ti: knav_qmss_queue: Make knav_gp_range_ops static soc: ti: add k3 platforms chipid module driver dt-bindings: soc: ti: add binding for k3 platforms chipid module ... |
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Arnd Bergmann
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469cbd0161 |
lib/ubsan.c: fix gcc-10 warnings
The latest compiler expects slightly different function prototypes for the ubsan helpers: lib/ubsan.c:192:6: error: conflicting types for built-in function '__ubsan_handle_add_overflow'; expected 'void(void *, void *, void *)' [-Werror=builtin-declaration-mismatch] 192 | void __ubsan_handle_add_overflow(struct overflow_data *data, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ lib/ubsan.c:200:6: error: conflicting types for built-in function '__ubsan_handle_sub_overflow'; expected 'void(void *, void *, void *)' [-Werror=builtin-declaration-mismatch] 200 | void __ubsan_handle_sub_overflow(struct overflow_data *data, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ lib/ubsan.c:207:6: error: conflicting types for built-in function '__ubsan_handle_mul_overflow'; expected 'void(void *, void *, void *)' [-Werror=builtin-declaration-mismatch] 207 | void __ubsan_handle_mul_overflow(struct overflow_data *data, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ lib/ubsan.c:214:6: error: conflicting types for built-in function '__ubsan_handle_negate_overflow'; expected 'void(void *, void *)' [-Werror=builtin-declaration-mismatch] 214 | void __ubsan_handle_negate_overflow(struct overflow_data *data, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ lib/ubsan.c:234:6: error: conflicting types for built-in function '__ubsan_handle_divrem_overflow'; expected 'void(void *, void *, void *)' [-Werror=builtin-declaration-mismatch] 234 | void __ubsan_handle_divrem_overflow(struct overflow_data *data, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Change the Linux implementation to match these, using a local typed pointer. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Julien Grall <julien.grall@arm.com> Link: http://lkml.kernel.org/r/20200429185948.4189600-1-arnd@arndb.de Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jesse Brandeburg
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c348c16305 |
lib: make a test module with set/clear bit
Test some bit clears/sets to make sure assembly doesn't change, and that the set_bit and clear_bit functions work and don't cause sparse warnings. Instruct Kbuild to build this file with extra warning level -Wextra, to catch new issues, and also doesn't hurt to build with C=1. This was used to test changes to arch/x86/include/asm/bitops.h. In particular, sparse (C=1) was very concerned when the last bit before a natural boundary, like 7, or 31, was being tested, as this causes sign extension (0xffffff7f) for instance when clearing bit 7. Recommended usage: make defconfig scripts/config -m CONFIG_TEST_BITOPS make modules_prepare make C=1 W=1 lib/test_bitops.ko objdump -S -d lib/test_bitops.ko insmod lib/test_bitops.ko rmmod lib/test_bitops.ko <check dmesg>, there should be no compiler/sparse warnings and no error messages in log. Link: http://lkml.kernel.org/r/20200310221747.2848474-2-jesse.brandeburg@intel.com Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> CcL Ingo Molnar <mingo@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wei Yang <richard.weiyang@gmail.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Tan Hu
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63d7f8167f |
lib/flex_proportions.c: cleanup __fprop_inc_percpu_max
If the given type has fraction smaller than max_frac/FPROP_FRAC_BASE, the code could be modified to call __fprop_inc_percpu() directly and easier to understand. After this patch, fprop_reflect_period_percpu() will be called twice, and quicky return on pl->period == p->period test, so it would not result to significant downside of performance. Thanks for Jan's guidance. Signed-off-by: Tan Hu <tan.hu@zte.com.cn> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Jan Kara <jack@suse.cz> Cc: <xue.zhihong@zte.com.cn> Cc: Yi Wang <wang.yi59@zte.com.cn> Cc: <wang.liang82@zte.com.cn> Link: http://lkml.kernel.org/r/1589004753-27554-1-git-send-email-tan.hu@zte.com.cn Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joe Perches
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a818e526cb |
lib/percpu-refcount.c: use a more common logging style
Remove the trailing newline from the used-once pr_fmt and add it to the single use of pr_<level> in this code to use a more common logging style. Miscellanea: o Use %lu in the pr_debug format and remove the unnecessary cast Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Link: http://lkml.kernel.org/r/47372467902a047c03b0fd29aab56e0c38d3f848.camel@perches.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jann Horn
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acaab7335b |
lib/zlib: remove outdated and incorrect pre-increment optimization
The zlib inflate code has an old micro-optimization based on the assumption that for pre-increment memory accesses, the compiler will generate code that fits better into the processor's pipeline than what would be generated for post-increment memory accesses. This optimization was already removed in upstream zlib in 2016: https://github.com/madler/zlib/commit/9aaec95e8211 This optimization causes UB according to C99, which says in section 6.5.6 "Additive operators": "If both the pointer operand and the result point to elements of the same array object, or one past the last element of the array object, the evaluation shall not produce an overflow; otherwise, the behavior is undefined". This UB is not only a theoretical concern, but can also cause trouble for future work on compiler-based sanitizers. According to the zlib commit, this optimization also is not optimal anymore with modern compilers. Replace uses of OFF, PUP and UP_UNALIGNED with their definitions in the POSTINC case, and remove the macro definitions, just like in the upstream patch. Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Mikhail Zaslonko <zaslonko@linux.ibm.com> Link: http://lkml.kernel.org/r/20200507123112.252723-1-jannh@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jason Yan
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02223e36f3 |
lib/test_lockup.c: make test_inode static
Fix the following sparse warning: lib/test_lockup.c:145:14: warning: symbol 'test_inode' was not declared. Should it be static? Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Link: http://lkml.kernel.org/r/20200417074021.46411-1-yanaijie@huawei.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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KP Singh
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0788735899 |
lib: Add might_fault() to strncpy_from_user.
When updating a piece of broken logic from using get_user to strncpy_from_user, we noticed that a warning which is expected when calling a function that might fault from an atomic context with pagefaults enabled disappeared. Not having this warning in place can lead to calling strncpy_from_user from an atomic context and eventually kernel crashes/stack corruption. Signed-off-by: KP Singh <kpsingh@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Jann Horn <jannh@google.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20200414225705.255711-1-kpsingh@chromium.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christophe JAILLET
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9ac1757580 |
lib/math: avoid trailing newline hidden in pr_fmt()
pr_xxx() functions usually have a newline at the end of the logging message. Here, this newline is added via the 'pr_fmt' macro. In order to be more consistent with other files, use a more standard convention and put these newlines back in the messages themselves and remove it from the pr_fmt macro. While at it, use __func__ instead of hardcoding a function name in the last message. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20200409163234.22830-1-christophe.jaillet@wanadoo.fr Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Anshuman Khandual
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399145f9eb |
mm/debug: add tests validating architecture page table helpers
This adds tests which will validate architecture page table helpers and other accessors in their compliance with expected generic MM semantics. This will help various architectures in validating changes to existing page table helpers or addition of new ones. This test covers basic page table entry transformations including but not limited to old, young, dirty, clean, write, write protect etc at various level along with populating intermediate entries with next page table page and validating them. Test page table pages are allocated from system memory with required size and alignments. The mapped pfns at page table levels are derived from a real pfn representing a valid kernel text symbol. This test gets called via late_initcall(). This test gets built and run when CONFIG_DEBUG_VM_PGTABLE is selected. Any architecture, which is willing to subscribe this test will need to select ARCH_HAS_DEBUG_VM_PGTABLE. For now this is limited to arc, arm64, x86, s390 and powerpc platforms where the test is known to build and run successfully Going forward, other architectures too can subscribe the test after fixing any build or runtime problems with their page table helpers. Folks interested in making sure that a given platform's page table helpers conform to expected generic MM semantics should enable the above config which will just trigger this test during boot. Any non conformity here will be reported as an warning which would need to be fixed. This test will help catch any changes to the agreed upon semantics expected from generic MM and enable platforms to accommodate it thereafter. [anshuman.khandual@arm.com: v17] Link: http://lkml.kernel.org/r/1587436495-22033-3-git-send-email-anshuman.khandual@arm.com [anshuman.khandual@arm.com: v18] Link: http://lkml.kernel.org/r/1588564865-31160-3-git-send-email-anshuman.khandual@arm.com Suggested-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Qian Cai <cai@lca.pw> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> [s390] Tested-by: Christophe Leroy <christophe.leroy@c-s.fr> [ppc32] Reviewed-by: Ingo Molnar <mingo@kernel.org> Cc: Mike Rapoport <rppt@linux.ibm.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Borislav Petkov <bp@alien8.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Link: http://lkml.kernel.org/r/1583919272-24178-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andrey Konovalov
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5ff3b30ab5 |
kcov: collect coverage from interrupts
This change extends kcov remote coverage support to allow collecting coverage from soft interrupts in addition to kernel background threads. To collect coverage from code that is executed in softirq context, a part of that code has to be annotated with kcov_remote_start/stop() in a similar way as how it is done for global kernel background threads. Then the handle used for the annotations has to be passed to the KCOV_REMOTE_ENABLE ioctl. Internally this patch adjusts the __sanitizer_cov_trace_pc() compiler inserted callback to not bail out when called from softirq context. kcov_remote_start/stop() are updated to save/restore the current per task kcov state in a per-cpu area (in case the softirq came when the kernel was already collecting coverage in task context). Coverage from softirqs is collected into pre-allocated per-cpu areas, whose size is controlled by the new CONFIG_KCOV_IRQ_AREA_SIZE. [andreyknvl@google.com: turn current->kcov_softirq into unsigned int to fix objtool warning] Link: http://lkml.kernel.org/r/841c778aa3849c5cb8c3761f56b87ce653a88671.1585233617.git.andreyknvl@google.com Signed-off-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Marco Elver <elver@google.com> Link: http://lkml.kernel.org/r/469bd385c431d050bc38a593296eff4baae50666.1584655448.git.andreyknvl@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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ee01c4d72a |
Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton: "More mm/ work, plenty more to come Subsystems affected by this patch series: slub, memcg, gup, kasan, pagealloc, hugetlb, vmscan, tools, mempolicy, memblock, hugetlbfs, thp, mmap, kconfig" * akpm: (131 commits) arm64: mm: use ARCH_HAS_DEBUG_WX instead of arch defined x86: mm: use ARCH_HAS_DEBUG_WX instead of arch defined riscv: support DEBUG_WX mm: add DEBUG_WX support drivers/base/memory.c: cache memory blocks in xarray to accelerate lookup mm/thp: rename pmd_mknotpresent() as pmd_mkinvalid() powerpc/mm: drop platform defined pmd_mknotpresent() mm: thp: don't need to drain lru cache when splitting and mlocking THP hugetlbfs: get unmapped area below TASK_UNMAPPED_BASE for hugetlbfs sparc32: register memory occupied by kernel as memblock.memory include/linux/memblock.h: fix minor typo and unclear comment mm, mempolicy: fix up gup usage in lookup_node tools/vm/page_owner_sort.c: filter out unneeded line mm: swap: memcg: fix memcg stats for huge pages mm: swap: fix vmstats for huge pages mm: vmscan: limit the range of LRU type balancing mm: vmscan: reclaim writepage is IO cost mm: vmscan: determine anon/file pressure balance at the reclaim root mm: balance LRU lists based on relative thrashing mm: only count actual rotations as LRU reclaim cost ... |
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Daniel Axtens
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adb72ae191 |
kasan: stop tests being eliminated as dead code with FORTIFY_SOURCE
Patch series "Fix some incompatibilites between KASAN and FORTIFY_SOURCE", v4. 3 KASAN self-tests fail on a kernel with both KASAN and FORTIFY_SOURCE: memchr, memcmp and strlen. When FORTIFY_SOURCE is on, a number of functions are replaced with fortified versions, which attempt to check the sizes of the operands. However, these functions often directly invoke __builtin_foo() once they have performed the fortify check. The compiler can detect that the results of these functions are not used, and knows that they have no other side effects, and so can eliminate them as dead code. Why are only memchr, memcmp and strlen affected? ================================================ Of string and string-like functions, kasan_test tests: * strchr -> not affected, no fortified version * strrchr -> likewise * strcmp -> likewise * strncmp -> likewise * strnlen -> not affected, the fortify source implementation calls the underlying strnlen implementation which is instrumented, not a builtin * strlen -> affected, the fortify souce implementation calls a __builtin version which the compiler can determine is dead. * memchr -> likewise * memcmp -> likewise * memset -> not affected, the compiler knows that memset writes to its first argument and therefore is not dead. Why does this not affect the functions normally? ================================================ In string.h, these functions are not marked as __pure, so the compiler cannot know that they do not have side effects. If relevant functions are marked as __pure in string.h, we see the following warnings and the functions are elided: lib/test_kasan.c: In function `kasan_memchr': lib/test_kasan.c:606:2: warning: statement with no effect [-Wunused-value] memchr(ptr, '1', size + 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~ lib/test_kasan.c: In function `kasan_memcmp': lib/test_kasan.c:622:2: warning: statement with no effect [-Wunused-value] memcmp(ptr, arr, size+1); ^~~~~~~~~~~~~~~~~~~~~~~~ lib/test_kasan.c: In function `kasan_strings': lib/test_kasan.c:645:2: warning: statement with no effect [-Wunused-value] strchr(ptr, '1'); ^~~~~~~~~~~~~~~~ ... This annotation would make sense to add and could be added at any point, so the behaviour of test_kasan.c should change. The fix ======= Make all the functions that are pure write their results to a global, which makes them live. The strlen and memchr tests now pass. The memcmp test still fails to trigger, which is addressed in the next patch. [dja@axtens.net: drop patch 3] Link: http://lkml.kernel.org/r/20200424145521.8203-2-dja@axtens.net Fixes: 0c96350a2d2f ("lib/test_kasan.c: add tests for several string/memory API functions") Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Tested-by: David Gow <davidgow@google.com> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> Cc: Daniel Micay <danielmicay@gmail.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Link: http://lkml.kernel.org/r/20200423154503.5103-1-dja@axtens.net Link: http://lkml.kernel.org/r/20200423154503.5103-2-dja@axtens.net Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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cb8e59cc87 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller: 1) Allow setting bluetooth L2CAP modes via socket option, from Luiz Augusto von Dentz. 2) Add GSO partial support to igc, from Sasha Neftin. 3) Several cleanups and improvements to r8169 from Heiner Kallweit. 4) Add IF_OPER_TESTING link state and use it when ethtool triggers a device self-test. From Andrew Lunn. 5) Start moving away from custom driver versions, use the globally defined kernel version instead, from Leon Romanovsky. 6) Support GRO vis gro_cells in DSA layer, from Alexander Lobakin. 7) Allow hard IRQ deferral during NAPI, from Eric Dumazet. 8) Add sriov and vf support to hinic, from Luo bin. 9) Support Media Redundancy Protocol (MRP) in the bridging code, from Horatiu Vultur. 10) Support netmap in the nft_nat code, from Pablo Neira Ayuso. 11) Allow UDPv6 encapsulation of ESP in the ipsec code, from Sabrina Dubroca. Also add ipv6 support for espintcp. 12) Lots of ReST conversions of the networking documentation, from Mauro Carvalho Chehab. 13) Support configuration of ethtool rxnfc flows in bcmgenet driver, from Doug Berger. 14) Allow to dump cgroup id and filter by it in inet_diag code, from Dmitry Yakunin. 15) Add infrastructure to export netlink attribute policies to userspace, from Johannes Berg. 16) Several optimizations to sch_fq scheduler, from Eric Dumazet. 17) Fallback to the default qdisc if qdisc init fails because otherwise a packet scheduler init failure will make a device inoperative. From Jesper Dangaard Brouer. 18) Several RISCV bpf jit optimizations, from Luke Nelson. 19) Correct the return type of the ->ndo_start_xmit() method in several drivers, it's netdev_tx_t but many drivers were using 'int'. From Yunjian Wang. 20) Add an ethtool interface for PHY master/slave config, from Oleksij Rempel. 21) Add BPF iterators, from Yonghang Song. 22) Add cable test infrastructure, including ethool interfaces, from Andrew Lunn. Marvell PHY driver is the first to support this facility. 23) Remove zero-length arrays all over, from Gustavo A. R. Silva. 24) Calculate and maintain an explicit frame size in XDP, from Jesper Dangaard Brouer. 25) Add CAP_BPF, from Alexei Starovoitov. 26) Support terse dumps in the packet scheduler, from Vlad Buslov. 27) Support XDP_TX bulking in dpaa2 driver, from Ioana Ciornei. 28) Add devm_register_netdev(), from Bartosz Golaszewski. 29) Minimize qdisc resets, from Cong Wang. 30) Get rid of kernel_getsockopt and kernel_setsockopt in order to eliminate set_fs/get_fs calls. From Christoph Hellwig. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2517 commits) selftests: net: ip_defrag: ignore EPERM net_failover: fixed rollback in net_failover_open() Revert "tipc: Fix potential tipc_aead refcnt leak in tipc_crypto_rcv" Revert "tipc: Fix potential tipc_node refcnt leak in tipc_rcv" vmxnet3: allow rx flow hash ops only when rss is enabled hinic: add set_channels ethtool_ops support selftests/bpf: Add a default $(CXX) value tools/bpf: Don't use $(COMPILE.c) bpf, selftests: Use bpf_probe_read_kernel s390/bpf: Use bcr 0,%0 as tail call nop filler s390/bpf: Maintain 8-byte stack alignment selftests/bpf: Fix verifier test selftests/bpf: Fix sample_cnt shared between two threads bpf, selftests: Adapt cls_redirect to call csum_level helper bpf: Add csum_level helper for fixing up csum levels bpf: Fix up bpf_skb_adjust_room helper's skb csum setting sfc: add missing annotation for efx_ef10_try_update_nic_stats_vf() crypto/chtls: IPv6 support for inline TLS Crypto/chcr: Fixes a coccinile check error Crypto/chcr: Fixes compilations warnings ... |
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Linus Torvalds
|
039aeb9deb |
ARM:
- Move the arch-specific code into arch/arm64/kvm - Start the post-32bit cleanup - Cherry-pick a few non-invasive pre-NV patches x86: - Rework of TLB flushing - Rework of event injection, especially with respect to nested virtualization - Nested AMD event injection facelift, building on the rework of generic code and fixing a lot of corner cases - Nested AMD live migration support - Optimization for TSC deadline MSR writes and IPIs - Various cleanups - Asynchronous page fault cleanups (from tglx, common topic branch with tip tree) - Interrupt-based delivery of asynchronous "page ready" events (host side) - Hyper-V MSRs and hypercalls for guest debugging - VMX preemption timer fixes s390: - Cleanups Generic: - switch vCPU thread wakeup from swait to rcuwait The other architectures, and the guest side of the asynchronous page fault work, will come next week. -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl7VJcYUHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroPf6QgAq4wU5wdd1lTGz/i3DIhNVJNJgJlp ozLzRdMaJbdbn5RpAK6PEBd9+pt3+UlojpFB3gpJh2Nazv2OzV4yLQgXXXyyMEx1 5Hg7b4UCJYDrbkCiegNRv7f/4FWDkQ9dx++RZITIbxeskBBCEI+I7GnmZhGWzuC4 7kj4ytuKAySF2OEJu0VQF6u0CvrNYfYbQIRKBXjtOwuRK4Q6L63FGMJpYo159MBQ asg3B1jB5TcuGZ9zrjL5LkuzaP4qZZHIRs+4kZsH9I6MODHGUxKonrkablfKxyKy CFK+iaHCuEXXty5K0VmWM3nrTfvpEjVjbMc7e1QGBQ5oXsDM0pqn84syRg== =v7Wn -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull kvm updates from Paolo Bonzini: "ARM: - Move the arch-specific code into arch/arm64/kvm - Start the post-32bit cleanup - Cherry-pick a few non-invasive pre-NV patches x86: - Rework of TLB flushing - Rework of event injection, especially with respect to nested virtualization - Nested AMD event injection facelift, building on the rework of generic code and fixing a lot of corner cases - Nested AMD live migration support - Optimization for TSC deadline MSR writes and IPIs - Various cleanups - Asynchronous page fault cleanups (from tglx, common topic branch with tip tree) - Interrupt-based delivery of asynchronous "page ready" events (host side) - Hyper-V MSRs and hypercalls for guest debugging - VMX preemption timer fixes s390: - Cleanups Generic: - switch vCPU thread wakeup from swait to rcuwait The other architectures, and the guest side of the asynchronous page fault work, will come next week" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (256 commits) KVM: selftests: fix rdtsc() for vmx_tsc_adjust_test KVM: check userspace_addr for all memslots KVM: selftests: update hyperv_cpuid with SynDBG tests x86/kvm/hyper-v: Add support for synthetic debugger via hypercalls x86/kvm/hyper-v: enable hypercalls regardless of hypercall page x86/kvm/hyper-v: Add support for synthetic debugger interface x86/hyper-v: Add synthetic debugger definitions KVM: selftests: VMX preemption timer migration test KVM: nVMX: Fix VMX preemption timer migration x86/kvm/hyper-v: Explicitly align hcall param for kvm_hyperv_exit KVM: x86/pmu: Support full width counting KVM: x86/pmu: Tweak kvm_pmu_get_msr to pass 'struct msr_data' in KVM: x86: announce KVM_FEATURE_ASYNC_PF_INT KVM: x86: acknowledgment mechanism for async pf page ready notifications KVM: x86: interrupt based APF 'page ready' event delivery KVM: introduce kvm_read_guest_offset_cached() KVM: rename kvm_arch_can_inject_async_page_present() to kvm_arch_can_dequeue_async_page_present() KVM: x86: extend struct kvm_vcpu_pv_apf_data with token info Revert "KVM: async_pf: Fix #DF due to inject "Page not Present" and "Page Ready" exceptions simultaneously" KVM: VMX: Replace zero-length array with flexible-array ... |
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Linus Torvalds
|
f1e455352b |
kgdb patches for 5.8-rc1
By far the biggest change in this cycle are the changes that allow much earlier debug of systems that are hooked up via UART by taking advantage of the earlycon framework to implement the kgdb I/O hooks before handing over to the regular polling I/O drivers once they are available. When discussing Doug's work we also found and fixed an broken raw_smp_processor_id() sequence in in_dbg_master(). Also included are a collection of much smaller fixes and tweaks: a couple of tweaks to ged rid of doc gen or coccicheck warnings, future proof some internal calculations that made implicit power-of-2 assumptions and eliminate some rather weird handling of magic environment variables in kdb. Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEELzVBU1D3lWq6cKzwfOMlXTn3iKEFAl7WfPsACgkQfOMlXTn3 iKGhvBAAmalPhPvJ74djkSfSuz+fNVgjer5wKGQNhz4lSd+0W3lCkY8T2fkUIpL5 jR3Q0gzJSA2WMSA7RrIwegDt0kCiQI0rtRKDkQxo33HBVSLlh2p5oXg7P5lQ4uOi QZyPI176V1KncFZjPKK2HzhTjoPNlx8GqVys6PBQETvTvxKR3f9qoq5qOKl/f9kQ Q4Dzb/npl6/XGJnQfdnkRcrXXtlK08yRxfXQyBEv0X6U9PUe1xmEZb1i9WBrrOYv u6N94fy2z6vqRgnbv4F6FTiQEHR1VFW2nPGpJ6GFv3KGFpT4QSWuyqTjm1Biee2y Gjn5ACAhW6tdPL+tCK3MRNGih7MaKoR01SnXz5D4T9V1zFTOhW7vyw+t3zoLfR7R fJoymQWKyfWbtj0Do8POiF31V+hvGVuqhzG/lTpnynSRJL38x4il6sFmtuRxMW+8 vyxaetrPX+omf+fq1ueYTJS5Y5bl1Zp3avajD3VPXq2Vq2m4zl++AOlzTOJDF5A+ P9RbwfWJh5Tm3VdCCWv849IDCK3R15DjoNLsuJkNRzqAYrJMVjA/QWyIAT14KR3z Nx3ix/QVKFkNnP5g1N38i2AvWRWZ/QuAmAFRgsmgnYPapeeX4EPtgdmqnloV9AAx CgO7KgUJF4LSIKTfoeWNJ4mpgSVR8zxkOR9w6DX0EQHDbfwlx8o= =uLAB -----END PGP SIGNATURE----- Merge tag 'kgdb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux Pull kgdb updates from Daniel Thompson: "By far the biggest change in this cycle are the changes that allow much earlier debug of systems that are hooked up via UART by taking advantage of the earlycon framework to implement the kgdb I/O hooks before handing over to the regular polling I/O drivers once they are available. When discussing Doug's work we also found and fixed an broken raw_smp_processor_id() sequence in in_dbg_master(). Also included are a collection of much smaller fixes and tweaks: a couple of tweaks to ged rid of doc gen or coccicheck warnings, future proof some internal calculations that made implicit power-of-2 assumptions and eliminate some rather weird handling of magic environment variables in kdb" * tag 'kgdb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux: kdb: Remove the misfeature 'KDBFLAGS' kdb: Cleanup math with KDB_CMD_HISTORY_COUNT serial: amba-pl011: Support kgdboc_earlycon serial: 8250_early: Support kgdboc_earlycon serial: qcom_geni_serial: Support kgdboc_earlycon serial: kgdboc: Allow earlycon initialization to be deferred Documentation: kgdboc: Document new kgdboc_earlycon parameter kgdb: Don't call the deinit under spinlock kgdboc: Disable all the early code when kgdboc is a module kgdboc: Add kgdboc_earlycon to support early kgdb using boot consoles kgdboc: Remove useless #ifdef CONFIG_KGDB_SERIAL_CONSOLE in kgdboc kgdb: Prevent infinite recursive entries to the debugger kgdb: Delay "kgdbwait" to dbg_late_init() by default kgdboc: Use a platform device to handle tty drivers showing up late Revert "kgdboc: disable the console lock when in kgdb" kgdb: Disable WARN_CONSOLE_UNLOCKED for all kgdb kgdb: Return true in kgdb_nmi_poll_knock() kgdb: Drop malformed kernel doc comment kgdb: Fix spurious true from in_dbg_master() |
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Christophe Leroy
|
b91c8c42ff |
lib/vdso: Force inlining of __cvdso_clock_gettime_common()
When adding gettime64() to a 32 bit architecture (namely powerpc/32) it has been noticed that GCC doesn't inline anymore __cvdso_clock_gettime_common() because it is called twice (Once by __cvdso_clock_gettime() and once by __cvdso_clock_gettime32). This has the effect of seriously degrading the performance: Before the implementation of gettime64(), gettime() runs in: clock-gettime-monotonic-raw: vdso: 1003 nsec/call clock-gettime-monotonic-coarse: vdso: 592 nsec/call clock-gettime-monotonic: vdso: 942 nsec/call When adding a gettime64() entry point, the standard gettime() performance is degraded by 30% to 50%: clock-gettime-monotonic-raw: vdso: 1300 nsec/call clock-gettime-monotonic-coarse: vdso: 900 nsec/call clock-gettime-monotonic: vdso: 1232 nsec/call Adding __always_inline() to __cvdso_clock_gettime_common() regains the original performance. In terms of code size, the inlining increases the code size by only 176 bytes. This is in the noise for a kernel image. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/1ab6a62c356c3bec35d1623563ef9c636205bcda.1588079622.git.christophe.leroy@c-s.fr |
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Linus Torvalds
|
cfa3b8068b |
hmm related patches for 5.8
This series adds a selftest for hmm_range_fault() and several of the DEVICE_PRIVATE migration related actions, and another simplification for hmm_range_fault()'s API. - Simplify hmm_range_fault() with a simpler return code, no HMM_PFN_SPECIAL, and no customizable output PFN format - Add a selftest for hmm_range_fault() and DEVICE_PRIVATE related functionality -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEfB7FMLh+8QxL+6i3OG33FX4gmxoFAl7VQr8ACgkQOG33FX4g mxrpcg/+O+oZ2p8FDTZi/0BTaU0crUiKwJngmmv78UuvD8nzhOZ0fkhK2lsXn9Uo 70lYbfDUSX2TbReP7y39VArW0v+Bj7wo9/7AZ+R2o5A0ajC6kccjGdnb7uEc3L6v CR+uumRYf/ZNz13cbuRBbYEz477DGnz+3vhBb4FLNTFj9XiNAC61jA1WUI0ep6x3 lDrkhDatqmdBJ+EqZDMq2+UH+lWbkptQT7hPqgEp6o7FqdnySxRd+rT3hALz5wNP fbryfWXM7V1eh7Kxr2mBJJqIkgbdhGLj2yLl1Iz11BbG6u7AT20r23WTvJ7hUCyt 18574twdltZ81gheqqN7KVYYAo+5seMfP14QdthqzzBMo3pOeLG0JMVqQNisDPgn Tf4lWF/GR7ajKxyRbLdvUgRE7pFQ9VMAiP86GoIpBFmSZQQDwcecnoYxg60zsTwR yuf60gopfNsSWNmDqKT3td12PQyFQYHYT6ue1eW6Rb9P+yA++tZaGkvGFn7kHeNV ZeUqsKEy6a9l6cDrFzNmsCcdNZg/qmw9mKFfa/4RRulU5jlskt/e52NiLaLU2rsr 0Tot3j5tMufLLorZPprMI3Z/M9ohVAS5DkX6ttcZDs5v0iGQEUOOnq0cXmwlJQ9I 0CHr2ImjiDr9v2fS+5ixaRNSHfnQWnHxcqq79UZiTjtPW1Daauo= =twev -----END PGP SIGNATURE----- Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma Pull hmm updates from Jason Gunthorpe: "This series adds a selftest for hmm_range_fault() and several of the DEVICE_PRIVATE migration related actions, and another simplification for hmm_range_fault()'s API. - Simplify hmm_range_fault() with a simpler return code, no HMM_PFN_SPECIAL, and no customizable output PFN format - Add a selftest for hmm_range_fault() and DEVICE_PRIVATE related functionality" * tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: MAINTAINERS: add HMM selftests mm/hmm/test: add selftests for HMM mm/hmm/test: add selftest driver for HMM mm/hmm: remove the customizable pfn format from hmm_range_fault mm/hmm: remove HMM_PFN_SPECIAL drm/amdgpu: remove dead code after hmm_range_fault() mm/hmm: make hmm_range_fault return 0 or -1 |
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Linus Torvalds
|
94709049fb |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: "A few little subsystems and a start of a lot of MM patches. Subsystems affected by this patch series: squashfs, ocfs2, parisc, vfs. With mm subsystems: slab-generic, slub, debug, pagecache, gup, swap, memcg, pagemap, memory-failure, vmalloc, kasan" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (128 commits) kasan: move kasan_report() into report.c mm/mm_init.c: report kasan-tag information stored in page->flags ubsan: entirely disable alignment checks under UBSAN_TRAP kasan: fix clang compilation warning due to stack protector x86/mm: remove vmalloc faulting mm: remove vmalloc_sync_(un)mappings() x86/mm/32: implement arch_sync_kernel_mappings() x86/mm/64: implement arch_sync_kernel_mappings() mm/ioremap: track which page-table levels were modified mm/vmalloc: track which page-table levels were modified mm: add functions to track page directory modifications s390: use __vmalloc_node in stack_alloc powerpc: use __vmalloc_node in alloc_vm_stack arm64: use __vmalloc_node in arch_alloc_vmap_stack mm: remove vmalloc_user_node_flags mm: switch the test_vmalloc module to use __vmalloc_node mm: remove __vmalloc_node_flags_caller mm: remove both instances of __vmalloc_node_flags mm: remove the prot argument to __vmalloc_node mm: remove the pgprot argument to __vmalloc ... |
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Kees Cook
|
9380ce246a |
ubsan: entirely disable alignment checks under UBSAN_TRAP
Commit 8d58f222e85f ("ubsan: disable UBSAN_ALIGNMENT under COMPILE_TEST") tried to fix the pathological results of UBSAN_ALIGNMENT with UBSAN_TRAP (which objtool would rightly scream about), but it made an assumption about how COMPILE_TEST gets set (it is not set for randconfig). As a result, we need a bigger hammer here: just don't allow the alignment checks with the trap mode. Fixes: 8d58f222e85f ("ubsan: disable UBSAN_ALIGNMENT under COMPILE_TEST") Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Elena Petrova <lenaptr@google.com> Link: http://lkml.kernel.org/r/202005291236.000FCB6@keescook Link: https://lore.kernel.org/lkml/742521db-1e8c-0d7a-1ed4-a908894fb497@infradead.org/ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Joerg Roedel
|
6c0c7d2b36 |
mm/ioremap: track which page-table levels were modified
Track at which levels in the page-table entries were modified by ioremap_page_range(). After the page-table has been modified, use that information do decide whether the new arch_sync_kernel_mappings() needs to be called. The iounmap path re-uses vunmap(), which has already been taken care of. Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Andy Lutomirski <luto@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: "H . Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Matthew Wilcox (Oracle) <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Link: http://lkml.kernel.org/r/20200515140023.25469-4-joro@8bytes.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christoph Hellwig
|
c3f896dcf1 |
mm: switch the test_vmalloc module to use __vmalloc_node
No need to export the very low-level __vmalloc_node_range when the test module can use a slightly higher level variant. [akpm@linux-foundation.org: add missing `node' arg] [akpm@linux-foundation.org: fix riscv nommu build] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Christophe Leroy <christophe.leroy@c-s.fr> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: David Airlie <airlied@linux.ie> Cc: Gao Xiang <xiang@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Laura Abbott <labbott@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Michael Kelley <mikelley@microsoft.com> Cc: Minchan Kim <minchan@kernel.org> Cc: Nitin Gupta <ngupta@vflare.org> Cc: Robin Murphy <robin.murphy@arm.com> Cc: Sakari Ailus <sakari.ailus@linux.intel.com> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Sumit Semwal <sumit.semwal@linaro.org> Cc: Wei Liu <wei.liu@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Paul Mackerras <paulus@ozlabs.org> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Will Deacon <will@kernel.org> Link: http://lkml.kernel.org/r/20200414131348.444715-26-hch@lst.de Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Masami Hiramatsu
|
2f56f84511 |
lib: Make test_sysctl initialized as module
test_sysctl.c is expected to be used as a module, but since it does not use module_init(), it never be registered as a module and not appeared under /sys/module/. In the result, the selftests/sysctl/sysctl.sh always fails to find the test module and is skipped. This makes test_sysctl.c initialized as a module by module_init() and allow sysctl.sh to find the test module is loaded. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Masami Hiramatsu
|
d0676871fd |
lib: Make prime number generator independently selectable
Make prime number generator independently selectable from kconfig. This allows us to enable CONFIG_PRIME_NUMBERS=m and run the tools/testing/selftests/lib/prime_numbers.sh without other DRM selftest modules. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Linus Torvalds
|
e148a8f948 |
Merge branch 'uaccess.readdir' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull uaccess/readdir updates from Al Viro: "Finishing the conversion of readdir.c to unsafe_... API. This includes the uaccess_{read,write}_begin series by Christophe Leroy" * 'uaccess.readdir' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: readdir.c: get rid of the last __put_user(), drop now-useless access_ok() readdir.c: get compat_filldir() more or less in sync with filldir() switch readdir(2) to unsafe_copy_dirent_name() drm/i915/gem: Replace user_access_begin by user_write_access_begin uaccess: Selectively open read or write user access uaccess: Add user_read_access_begin/end and user_write_access_begin/end |
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Linus Torvalds
|
4b01285e16 |
Merge branch 'uaccess.csum' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull uaccess/csum updates from Al Viro: "Regularize the sitation with uaccess checksum primitives: - fold csum_partial_... into csum_and_copy_..._user() - on x86 collapse several access_ok()/stac()/clac() into user_access_begin()/user_access_end()" * 'uaccess.csum' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: default csum_and_copy_to_user(): don't bother with access_ok() take the dummy csum_and_copy_from_user() into net/checksum.h arm: switch to csum_and_copy_from_user() sh32: convert to csum_and_copy_from_user() m68k: convert to csum_and_copy_from_user() xtensa: switch to providing csum_and_copy_from_user() sparc: switch to providing csum_and_copy_from_user() parisc: turn csum_partial_copy_from_user() into csum_and_copy_from_user() alpha: turn csum_partial_copy_from_user() into csum_and_copy_from_user() ia64: turn csum_partial_copy_from_user() into csum_and_copy_from_user() ia64: csum_partial_copy_nocheck(): don't abuse csum_partial_copy_from_user() x86: switch 32bit csum_and_copy_to_user() to user_access_{begin,end}() x86: switch both 32bit and 64bit to providing csum_and_copy_from_user() x86_64: csum_..._copy_..._user(): switch to unsafe_..._user() get rid of csum_partial_copy_to_user() |
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Linus Torvalds
|
b23c4771ff |
A fair amount of stuff this time around, dominated by yet another massive
set from Mauro toward the completion of the RST conversion. I *really* hope we are getting close to the end of this. Meanwhile, those patches reach pretty far afield to update document references around the tree; there should be no actual code changes there. There will be, alas, more of the usual trivial merge conflicts. Beyond that we have more translations, improvements to the sphinx scripting, a number of additions to the sysctl documentation, and lots of fixes. -----BEGIN PGP SIGNATURE----- iQFDBAABCAAtFiEEIw+MvkEiF49krdp9F0NaE2wMflgFAl7VId8PHGNvcmJldEBs d24ubmV0AAoJEBdDWhNsDH5Yq/gH/iaDgirQZV6UZ2v9sfwQNYolNpf2sKAuOZjd bPFB7WJoMQbKwQEvYrAUL2+5zPOcLYuIfzyOfo1BV1py+EyKbACcKjI4AedxfJF7 +NchmOBhlEqmEhzx2U08HRc4/8J223WG17fJRVsV3p+opJySexSFeQucfOciX5NR RUCxweWWyg/FgyqjkyMMTtsePqZPmcT5dWTlVXISlbWzcv5NFhuJXnSrw8Sfzcmm SJMzqItv3O+CabnKQ8kMLV2PozXTMfjeWH47ZUK0Y8/8PP9+cvqwFzZ0UDQJ1Xaz oyW/TqmunaXhfMsMFeFGSwtfgwRHvXdxkQdtwNHvo1dV4dzTvDw= =fDC/ -----END PGP SIGNATURE----- Merge tag 'docs-5.8' of git://git.lwn.net/linux Pull documentation updates from Jonathan Corbet: "A fair amount of stuff this time around, dominated by yet another massive set from Mauro toward the completion of the RST conversion. I *really* hope we are getting close to the end of this. Meanwhile, those patches reach pretty far afield to update document references around the tree; there should be no actual code changes there. There will be, alas, more of the usual trivial merge conflicts. Beyond that we have more translations, improvements to the sphinx scripting, a number of additions to the sysctl documentation, and lots of fixes" * tag 'docs-5.8' of git://git.lwn.net/linux: (130 commits) Documentation: fixes to the maintainer-entry-profile template zswap: docs/vm: Fix typo accept_threshold_percent in zswap.rst tracing: Fix events.rst section numbering docs: acpi: fix old http link and improve document format docs: filesystems: add info about efivars content Documentation: LSM: Correct the basic LSM description mailmap: change email for Ricardo Ribalda docs: sysctl/kernel: document unaligned controls Documentation: admin-guide: update bug-hunting.rst docs: sysctl/kernel: document ngroups_max nvdimm: fixes to maintainter-entry-profile Documentation/features: Correct RISC-V kprobes support entry Documentation/features: Refresh the arch support status files Revert "docs: sysctl/kernel: document ngroups_max" docs: move locking-specific documents to locking/ docs: move digsig docs to the security book docs: move the kref doc into the core-api book docs: add IRQ documentation at the core-api book docs: debugging-via-ohci1394.txt: add it to the core-api book docs: fix references for ipmi.rst file ... |
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Linus Torvalds
|
533b220f7b |
arm64 updates for 5.8
- Branch Target Identification (BTI) * Support for ARMv8.5-BTI in both user- and kernel-space. This allows branch targets to limit the types of branch from which they can be called and additionally prevents branching to arbitrary code, although kernel support requires a very recent toolchain. * Function annotation via SYM_FUNC_START() so that assembly functions are wrapped with the relevant "landing pad" instructions. * BPF and vDSO updates to use the new instructions. * Addition of a new HWCAP and exposure of BTI capability to userspace via ID register emulation, along with ELF loader support for the BTI feature in .note.gnu.property. * Non-critical fixes to CFI unwind annotations in the sigreturn trampoline. - Shadow Call Stack (SCS) * Support for Clang's Shadow Call Stack feature, which reserves platform register x18 to point at a separate stack for each task that holds only return addresses. This protects function return control flow from buffer overruns on the main stack. * Save/restore of x18 across problematic boundaries (user-mode, hypervisor, EFI, suspend, etc). * Core support for SCS, should other architectures want to use it too. * SCS overflow checking on context-switch as part of the existing stack limit check if CONFIG_SCHED_STACK_END_CHECK=y. - CPU feature detection * Removed numerous "SANITY CHECK" errors when running on a system with mismatched AArch32 support at EL1. This is primarily a concern for KVM, which disabled support for 32-bit guests on such a system. * Addition of new ID registers and fields as the architecture has been extended. - Perf and PMU drivers * Minor fixes and cleanups to system PMU drivers. - Hardware errata * Unify KVM workarounds for VHE and nVHE configurations. * Sort vendor errata entries in Kconfig. - Secure Monitor Call Calling Convention (SMCCC) * Update to the latest specification from Arm (v1.2). * Allow PSCI code to query the SMCCC version. - Software Delegated Exception Interface (SDEI) * Unexport a bunch of unused symbols. * Minor fixes to handling of firmware data. - Pointer authentication * Add support for dumping the kernel PAC mask in vmcoreinfo so that the stack can be unwound by tools such as kdump. * Simplification of key initialisation during CPU bringup. - BPF backend * Improve immediate generation for logical and add/sub instructions. - vDSO - Minor fixes to the linker flags for consistency with other architectures and support for LLVM's unwinder. - Clean up logic to initialise and map the vDSO into userspace. - ACPI - Work around for an ambiguity in the IORT specification relating to the "num_ids" field. - Support _DMA method for all named components rather than only PCIe root complexes. - Minor other IORT-related fixes. - Miscellaneous * Initialise debug traps early for KGDB and fix KDB cacheflushing deadlock. * Minor tweaks to early boot state (documentation update, set TEXT_OFFSET to 0x0, increase alignment of PE/COFF sections). * Refactoring and cleanup -----BEGIN PGP SIGNATURE----- iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl7U9csQHHdpbGxAa2Vy bmVsLm9yZwAKCRC3rHDchMFjNLBHCACs/YU4SM7Om5f+7QnxIKao5DBr2CnGGvdC yTfDghFDTLQVv3MufLlfno3yBe5G8sQpcZfcc+hewfcGoMzVZXu8s7LzH6VSn9T9 jmT3KjDMrg0RjSHzyumJp2McyelTk0a4FiKArSIIKsJSXUyb1uPSgm7SvKVDwEwU JGDzL9IGilmq59GiXfDzGhTZgmC37QdwRoRxDuqtqWQe5CHoRXYexg87HwBKOQxx HgU9L7ehri4MRZfpyjaDrr6quJo3TVnAAKXNBh3mZAskVS9ZrfKpEH0kYWYuqybv znKyHRecl/rrGePV8RTMtrwnSdU26zMXE/omsVVauDfG9hqzqm+Q =w3qi -----END PGP SIGNATURE----- Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Will Deacon: "A sizeable pile of arm64 updates for 5.8. Summary below, but the big two features are support for Branch Target Identification and Clang's Shadow Call stack. The latter is currently arm64-only, but the high-level parts are all in core code so it could easily be adopted by other architectures pending toolchain support Branch Target Identification (BTI): - Support for ARMv8.5-BTI in both user- and kernel-space. This allows branch targets to limit the types of branch from which they can be called and additionally prevents branching to arbitrary code, although kernel support requires a very recent toolchain. - Function annotation via SYM_FUNC_START() so that assembly functions are wrapped with the relevant "landing pad" instructions. - BPF and vDSO updates to use the new instructions. - Addition of a new HWCAP and exposure of BTI capability to userspace via ID register emulation, along with ELF loader support for the BTI feature in .note.gnu.property. - Non-critical fixes to CFI unwind annotations in the sigreturn trampoline. Shadow Call Stack (SCS): - Support for Clang's Shadow Call Stack feature, which reserves platform register x18 to point at a separate stack for each task that holds only return addresses. This protects function return control flow from buffer overruns on the main stack. - Save/restore of x18 across problematic boundaries (user-mode, hypervisor, EFI, suspend, etc). - Core support for SCS, should other architectures want to use it too. - SCS overflow checking on context-switch as part of the existing stack limit check if CONFIG_SCHED_STACK_END_CHECK=y. CPU feature detection: - Removed numerous "SANITY CHECK" errors when running on a system with mismatched AArch32 support at EL1. This is primarily a concern for KVM, which disabled support for 32-bit guests on such a system. - Addition of new ID registers and fields as the architecture has been extended. Perf and PMU drivers: - Minor fixes and cleanups to system PMU drivers. Hardware errata: - Unify KVM workarounds for VHE and nVHE configurations. - Sort vendor errata entries in Kconfig. Secure Monitor Call Calling Convention (SMCCC): - Update to the latest specification from Arm (v1.2). - Allow PSCI code to query the SMCCC version. Software Delegated Exception Interface (SDEI): - Unexport a bunch of unused symbols. - Minor fixes to handling of firmware data. Pointer authentication: - Add support for dumping the kernel PAC mask in vmcoreinfo so that the stack can be unwound by tools such as kdump. - Simplification of key initialisation during CPU bringup. BPF backend: - Improve immediate generation for logical and add/sub instructions. vDSO: - Minor fixes to the linker flags for consistency with other architectures and support for LLVM's unwinder. - Clean up logic to initialise and map the vDSO into userspace. ACPI: - Work around for an ambiguity in the IORT specification relating to the "num_ids" field. - Support _DMA method for all named components rather than only PCIe root complexes. - Minor other IORT-related fixes. Miscellaneous: - Initialise debug traps early for KGDB and fix KDB cacheflushing deadlock. - Minor tweaks to early boot state (documentation update, set TEXT_OFFSET to 0x0, increase alignment of PE/COFF sections). - Refactoring and cleanup" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (148 commits) KVM: arm64: Move __load_guest_stage2 to kvm_mmu.h KVM: arm64: Check advertised Stage-2 page size capability arm64/cpufeature: Add get_arm64_ftr_reg_nowarn() ACPI/IORT: Remove the unused __get_pci_rid() arm64/cpuinfo: Add ID_MMFR4_EL1 into the cpuinfo_arm64 context arm64/cpufeature: Add remaining feature bits in ID_AA64PFR1 register arm64/cpufeature: Add remaining feature bits in ID_AA64PFR0 register arm64/cpufeature: Add remaining feature bits in ID_AA64ISAR0 register arm64/cpufeature: Add remaining feature bits in ID_MMFR4 register arm64/cpufeature: Add remaining feature bits in ID_PFR0 register arm64/cpufeature: Introduce ID_MMFR5 CPU register arm64/cpufeature: Introduce ID_DFR1 CPU register arm64/cpufeature: Introduce ID_PFR2 CPU register arm64/cpufeature: Make doublelock a signed feature in ID_AA64DFR0 arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register arm64/cpufeature: Add explicit ftr_id_isar0[] for ID_ISAR0 register arm64: mm: Add asid_gen_match() helper firmware: smccc: Fix missing prototype warning for arm_smccc_version_init arm64: vdso: Fix CFI directives in sigreturn trampoline arm64: vdso: Don't prefix sigreturn trampoline with a BTI C instruction ... |
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Anders Roxell
|
5f215aab4e |
lib: Kconfig.debug: default KUNIT_* fragments to KUNIT_ALL_TESTS
This makes it easier to enable all KUnit fragments. Adding 'if !KUNIT_ALL_TESTS' so individual tests can not be turned off. Therefore if KUNIT_ALL_TESTS is enabled that will hide the prompt in menuconfig. Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Anders Roxell
|
beaed42c42 |
kunit: default KUNIT_* fragments to KUNIT_ALL_TESTS
This makes it easier to enable all KUnit fragments. Adding 'if !KUNIT_ALL_TESTS' so individual tests can not be turned off. Therefore if KUNIT_ALL_TESTS is enabled that will hide the prompt in menuconfig. Reviewed-by: David Gow <davidgow@google.com> Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Anders Roxell
|
92238b31bd |
kunit: Kconfig: enable a KUNIT_ALL_TESTS fragment
Make it easier to enable all KUnit fragments. This is useful for kernel devs or testers, so its easy to get all KUnit tests enabled and if new gets added they will be enabled as well. Fragments that has to be builtin will be missed if CONFIG_KUNIT_ALL_TESTS is set as a module. Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> |
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Linus Torvalds
|
69fc06f70f |
There are a lot of objtool changes in this cycle, all across the map:
- Speed up objtool significantly, especially when there are large number of sections - Improve objtool's understanding of special instructions such as IRET, to reduce the number of annotations required - Implement 'noinstr' validation - Do baby steps for non-x86 objtool use - Simplify/fix retpoline decoding - Add vmlinux validation - Improve documentation - Fix various bugs and apply smaller cleanups Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAl7VHvcRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gEfBAAhvPWljUmfQsetYq4q9BdbuC4xPSQN9ra e+2zu1MQaohkjAdFM1boNVhCCGKFUvlTEEw3GJR141Us6Y/ZRS8VIo70tmVSku6I OwuR5i8SgEKwurr1SwLxrI05rovYWRLSaDIRTHn2CViPEjgriyFGRV8QKam3AYmI dx47la3ELwuQR68nIdIMzDRt49oZVy+ZKW8Pjgjklzrd5KMYsPy7HPtraHUMeDg+ GdoC7RresIt5AFiDiIJzKTT/jROI7KuHFnM6blluKHoKenWhYBFCz3sd6IvCdQWX JGy+KKY6H+YDMSpgc4FRP56M3GI0hX14oCd7L72epSLfOuzPr9Tmf6wfyQ8f50Je LGLD47tyltIcQR9H85YdR8UQspkjSW6xcql4ByCPTEqp0UzSGTsVntvsHzwsgz6A Csh3s+DVdv0rk5ZjMCu8STA2oErpehJm7fmugt2oLx+nsCNCBUI25lilw5JGeq5c +cO0IRxRxHPeRvMWvItTjbixVAHOHYlB00ilDbvsm+GnTJgu/5cMqpXdLvfXI2Rr nl360bSS3t3J4w5rX0mXw4x24vjQmVrA69jU+oo8RSHje2X8Y4Q7sFHNjmN0YAI3 Re8aP6HSLQjioJxGz9aISlrxmPOXe0CMp8JE586SREVgmS/olXtidMgi7l12uZ2B cRdtNYcn31U= =dbCU -----END PGP SIGNATURE----- Merge tag 'objtool-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull objtool updates from Ingo Molnar: "There are a lot of objtool changes in this cycle, all across the map: - Speed up objtool significantly, especially when there are large number of sections - Improve objtool's understanding of special instructions such as IRET, to reduce the number of annotations required - Implement 'noinstr' validation - Do baby steps for non-x86 objtool use - Simplify/fix retpoline decoding - Add vmlinux validation - Improve documentation - Fix various bugs and apply smaller cleanups" * tag 'objtool-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits) objtool: Enable compilation of objtool for all architectures objtool: Move struct objtool_file into arch-independent header objtool: Exit successfully when requesting help objtool: Add check_kcov_mode() to the uaccess safelist samples/ftrace: Fix asm function ELF annotations objtool: optimize add_dead_ends for split sections objtool: use gelf_getsymshndx to handle >64k sections objtool: Allow no-op CFI ops in alternatives x86/retpoline: Fix retpoline unwind x86: Change {JMP,CALL}_NOSPEC argument x86: Simplify retpoline declaration x86/speculation: Change FILL_RETURN_BUFFER to work with objtool objtool: Add support for intra-function calls objtool: Move the IRET hack into the arch decoder objtool: Remove INSN_STACK objtool: Make handle_insn_ops() unconditional objtool: Rework allocating stack_ops on decode objtool: UNWIND_HINT_RET_OFFSET should not check registers objtool: is_fentry_call() crashes if call has no destination x86,smap: Fix smap_{save,restore}() alternatives ... |
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Linus Torvalds
|
60056060be |
The biggest change to core locking facilities in this cycle is the introduction
of local_lock_t - this primitive comes from the -rt project and identifies CPU-local locking dependencies normally handled opaquely beind preempt_disable() or local_irq_save/disable() critical sections. The generated code on mainline kernels doesn't change as a result, but still there are benefits: improved debugging and better documentation of data structure accesses. The new local_lock_t primitives are introduced and then utilized in a couple of kernel subsystems. No change in functionality is intended. There's also other smaller changes and cleanups. Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAl7VAogRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1h67BAAusYb44jJyZUE74rmaLnJr0c6j7eJ6twT 8LKRwxb21Y35DMuX6M5ewmvnHiLFYmjL728z+y8O+SP8vb4PSJBX/75X+wsawIJB cjHdxonyynVVC4zcbdrc37FsrOiVoKLbbZcpqRzHksKkCq2PHbFVxBNvEaKHZCWW 1jnq0MRy9wEJtW9EThDWPLD+OPWhBvocUFYJH4fiqCIaDiip/E16fz3i+yMPt545 Jz4Ibnsq+G5Ehm1N2AkaZuK9V9nYv85E7Z/UNiK4mkDOApE6OMS+q3d86BhqgPg5 g/HL3HNXAtIY74tBYAac5tAQglT+283LuTpEPt9BEjNM7QxKg/ecXO7lwtn7Boku dACMqeuMHbLyru8uhbun/VBx1gca7HIhW1cvXO5OoR7o78fHpEFivjJ0B0OuSYAI y+/DsA41OlkWSEnboUs+zTQgFatqxQPke92xpGOJtjVVZRYHRqxcPtw9WFmoVqWA HeczDQLcSUhqbKSfr6X9BO2u3qxys5BzmImTKMqXEQ4d8Kk0QXbJgGYGfS8+ASey Am/jwUP3Cvzs99NxLH5gECKRSuTx3rY7nRGaIBYa+Ui575bdSF8sVAF13riB2mBp NJq2Pw0D36WcX7ecaC2Fk2ezkphbeuAr8E7gh/Mt/oVxjrfwRGfPMrnIwKygUydw 1W5x+WZ+WsY= =TBTY -----END PGP SIGNATURE----- Merge tag 'locking-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull locking updates from Ingo Molnar: "The biggest change to core locking facilities in this cycle is the introduction of local_lock_t - this primitive comes from the -rt project and identifies CPU-local locking dependencies normally handled opaquely beind preempt_disable() or local_irq_save/disable() critical sections. The generated code on mainline kernels doesn't change as a result, but still there are benefits: improved debugging and better documentation of data structure accesses. The new local_lock_t primitives are introduced and then utilized in a couple of kernel subsystems. No change in functionality is intended. There's also other smaller changes and cleanups" * tag 'locking-core-2020-06-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: zram: Use local lock to protect per-CPU data zram: Allocate struct zcomp_strm as per-CPU memory connector/cn_proc: Protect send_msg() with a local lock squashfs: Make use of local lock in multi_cpu decompressor mm/swap: Use local_lock for protection radix-tree: Use local_lock for protection locking: Introduce local_lock() locking/lockdep: Replace zero-length array with flexible-array locking/rtmutex: Remove unused rt_mutex_cmpxchg_relaxed() |
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Linus Torvalds
|
ca1f5df23f |
Printk changes for 5.8
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEESH4wyp42V4tXvYsjUqAMR0iAlPIFAl7U1TIACgkQUqAMR0iA lPI0mQ//TcVlRJgts/iwv0M2Simje28t9tziOHgWmEeiyGwE7vwDPDzt8QFiKzBa IrJ5iTRMtCrEF+eapqeH4g+Ve4Npm5Cobl8/h9JEiVu3SNC48TuaiUzU3+Bfl1zV vcDfZtN9QD1/CdLGlyKO75xjkCOaJRCFnx5ToXnd3llshMKI2XebUCnEH4TDe6Fz NGTjJL4kCPwzmae++UhlMfKwkayBtNbqcLkaTb7d67Tw2DcuuIVixUER77oC9QPN SfxdS07s0UVc4C9bCVe3KtYZR5YU/riOjKNJNutzP3JDtQNugywrrtI0qBwEisqM puMJ3xLeLssTn10FJxRK9ewRlXy2zT9mmcCuaVU6LtiyGnHOuEwIU+Ewu0itiJGu JuFovsNqTvOiZqFP7+pkDktOjffF2hsY/a6NxHr6aof8CrdO2w9dmCAgzGvnwV1N /zlmmPSEigVLz47eeivIIdQrPUejrEV7g1wOYYApnIlNCmGjdkGnXKNaUrLGDehQ QIlpx1uvmhntjiw1hTSbOV7KOQxLGtuy6DWLYC7uHD3H3aGDQyQO8dZYXSfOY1Qu cvQ/K8ykW0Kq2JKEHjkwSRHKDpxhvbQg7N5JCHQA49ahdZD3O5bOfeTofw+7nFO0 j9g2Qv6nWFjLbAIAFtqjh6wz0UtGNoTl2cqQswsS10wlDcsq8vs= =pUBG -----END PGP SIGNATURE----- Merge tag 'printk-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux Pull printk updates from Petr Mladek: - Benjamin Herrenschmidt solved a problem with non-matched console aliases by first checking consoles defined on the command line. It is a more conservative approach than the previous attempts. - Benjamin also made sure that the console accessible via /dev/console always has CON_CONSDEV flag. - Andy Shevchenko added the %ptT modifier for printing struct time64_t. It extends the existing %ptR handling for struct rtc_time. - Bruno Meneguele fixed /dev/kmsg error value returned by unsupported SEEK_CUR. - Tetsuo Handa removed unused pr_cont_once(). ... and a few small fixes. * tag 'printk-for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: printk: Remove pr_cont_once() printk: handle blank console arguments passed in. kernel/printk: add kmsg SEEK_CUR handling printk: Fix a typo in comment "interator"->"iterator" usb: pulse8-cec: Switch to use %ptT ARM: bcm2835: Switch to use %ptT lib/vsprintf: Print time64_t in human readable format lib/vsprintf: update comment about simple_strto<foo>() functions printk: Correctly set CON_CONSDEV even when preferred console was not registered printk: Fix preferred console selection with multiple matches printk: Move console matching logic into a separate function printk: Convert a use of sprintf to snprintf in console_unlock |
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Linus Torvalds
|
81e8c10dac |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu: "API: - Introduce crypto_shash_tfm_digest() and use it wherever possible. - Fix use-after-free and race in crypto_spawn_alg. - Add support for parallel and batch requests to crypto_engine. Algorithms: - Update jitter RNG for SP800-90B compliance. - Always use jitter RNG as seed in drbg. Drivers: - Add Arm CryptoCell driver cctrng. - Add support for SEV-ES to the PSP driver in ccp" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (114 commits) crypto: hisilicon - fix driver compatibility issue with different versions of devices crypto: engine - do not requeue in case of fatal error crypto: cavium/nitrox - Fix a typo in a comment crypto: hisilicon/qm - change debugfs file name from qm_regs to regs crypto: hisilicon/qm - add DebugFS for xQC and xQE dump crypto: hisilicon/zip - add debugfs for Hisilicon ZIP crypto: hisilicon/hpre - add debugfs for Hisilicon HPRE crypto: hisilicon/sec2 - add debugfs for Hisilicon SEC crypto: hisilicon/qm - add debugfs to the QM state machine crypto: hisilicon/qm - add debugfs for QM crypto: stm32/crc32 - protect from concurrent accesses crypto: stm32/crc32 - don't sleep in runtime pm crypto: stm32/crc32 - fix multi-instance crypto: stm32/crc32 - fix run-time self test issue. crypto: stm32/crc32 - fix ext4 chksum BUG_ON() crypto: hisilicon/zip - Use temporary sqe when doing work crypto: hisilicon - add device error report through abnormal irq crypto: hisilicon - remove codes of directly report device errors through MSI crypto: hisilicon - QM memory management optimization crypto: hisilicon - unify initial value assignment into QM ... |
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Richard Weinberger
|
a8dfb61d63 |
Raw NAND core changes:
* Stop using nand_release(), patched all drivers. * Give more information about the ECC weakness when not matching the chip's requirement. * MAINTAINERS updates. * Support emulated SLC mode on MLC NANDs. * Support "constrained" controllers, adapt the core and ONFI/JEDEC table parsing and Micron's code. * Take check_only into account. * Add an invalid ECC mode to discriminate with valid ones. * Return an enum from of_get_nand_ecc_algo(). * Drop OOB_FIRST placement scheme. * Introduce nand_extract_bits(). * Ensure a consistent bitflips numbering. * BCH lib: - Allow easy bit swapping. - Rework a little bit the exported function names. * Fix nand_gpio_waitrdy(). * Propage CS selection to sub operations. * Add a NAND_NO_BBM_QUIRK flag. * Give the possibility to verify a read operation is supported. * Add a helper to check supported operations. * Avoid indirect access to ->data_buf(). * Rename the use_bufpoi variables. * Fix comments about the use of bufpoi. * Rename a NAND chip option. * Reorder the nand_chip->options flags. * Translate obscure bitfields into readable macros. * Timings: - Fix default values. - Add mode information to the timings structure. Raw NAND controller driver changes: * Fixed many error paths. * Arasan - New driver * Au1550nd: - Various cleanups - Migration to ->exec_op() * brcmnand: - Misc cleanup. - Support v2.1-v2.2 controllers. - Remove unused including <linux/version.h>. - Correctly verify erased pages. - Fix Hamming OOB layout. * Cadence - Make cadence_nand_attach_chip static. * Cafe: - Set the NAND_NO_BBM_QUIRK flag * cmx270: - Remove this controller driver. * cs553x: - Misc cleanup - Migration to ->exec_op() * Davinci: - Misc cleanup. - Migration to ->exec_op() * Denali: - Add more delays before latching incoming data * Diskonchip: - Misc cleanup - Migration to ->exec_op() * Fsmc: - Change to non-atomic bit operations. * GPMI: - Use nand_extract_bits() - Fix runtime PM imbalance. * Ingenic: - Migration to exec_op() - Fix the RB gpio active-high property on qi, lb60 - Make qi_lb60_ooblayout_ops static. * Marvell: - Misc cleanup and small fixes * Nandsim: - Fix the error paths, driver wide. * Omap_elm: - Fix runtime PM imbalance. * STM32_FMC2: - Misc cleanups (error cases, comments, timeout valus, cosmetic changes). -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEE9HuaYnbmDhq/XIDIJWrqGEe9VoQFAl7TdZMACgkQJWrqGEe9 VoRthQgAttWsImXpEUa8C8CXvPhjpb6uZ7QYM4PSE0bheuVi7ivoDPyYWopno30h R6UntGbsBqPyvDFDUxUEvyvn5F0JQK1dLif+7X0Ki5on6LkYdEuanHaSMZmSIXD8 atNhLVO1FeD3EulN8Dw9hGy6OrNT8O2bESbiJrCpOk9s6yAPINhKqZVJsyShcTs5 tc94/J0DIF7og8cdH4wYoz+AWw0WaHvPsn5VWnTy08gk7dB7hsq/DeftZmrJLL0g B7Et1pvcLBSNBGBpzS6rEjXb/e3+wdKnNy0AQvrMdEZUzN3h9aY5sCLSFOsFfKQ+ xjxJgmyoKk0C9uCeNaPt8c7gTgAZAA== =Gz6y -----END PGP SIGNATURE----- Merge tag 'nand/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/next Raw NAND core changes: * Stop using nand_release(), patched all drivers. * Give more information about the ECC weakness when not matching the chip's requirement. * MAINTAINERS updates. * Support emulated SLC mode on MLC NANDs. * Support "constrained" controllers, adapt the core and ONFI/JEDEC table parsing and Micron's code. * Take check_only into account. * Add an invalid ECC mode to discriminate with valid ones. * Return an enum from of_get_nand_ecc_algo(). * Drop OOB_FIRST placement scheme. * Introduce nand_extract_bits(). * Ensure a consistent bitflips numbering. * BCH lib: - Allow easy bit swapping. - Rework a little bit the exported function names. * Fix nand_gpio_waitrdy(). * Propage CS selection to sub operations. * Add a NAND_NO_BBM_QUIRK flag. * Give the possibility to verify a read operation is supported. * Add a helper to check supported operations. * Avoid indirect access to ->data_buf(). * Rename the use_bufpoi variables. * Fix comments about the use of bufpoi. * Rename a NAND chip option. * Reorder the nand_chip->options flags. * Translate obscure bitfields into readable macros. * Timings: - Fix default values. - Add mode information to the timings structure. Raw NAND controller driver changes: * Fixed many error paths. * Arasan - New driver * Au1550nd: - Various cleanups - Migration to ->exec_op() * brcmnand: - Misc cleanup. - Support v2.1-v2.2 controllers. - Remove unused including <linux/version.h>. - Correctly verify erased pages. - Fix Hamming OOB layout. * Cadence - Make cadence_nand_attach_chip static. * Cafe: - Set the NAND_NO_BBM_QUIRK flag * cmx270: - Remove this controller driver. * cs553x: - Misc cleanup - Migration to ->exec_op() * Davinci: - Misc cleanup. - Migration to ->exec_op() * Denali: - Add more delays before latching incoming data * Diskonchip: - Misc cleanup - Migration to ->exec_op() * Fsmc: - Change to non-atomic bit operations. * GPMI: - Use nand_extract_bits() - Fix runtime PM imbalance. * Ingenic: - Migration to exec_op() - Fix the RB gpio active-high property on qi, lb60 - Make qi_lb60_ooblayout_ops static. * Marvell: - Misc cleanup and small fixes * Nandsim: - Fix the error paths, driver wide. * Omap_elm: - Fix runtime PM imbalance. * STM32_FMC2: - Misc cleanups (error cases, comments, timeout valus, cosmetic changes). |
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Peter Zijlstra
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58f6e38448 |
ftrace,bug: Improve traceoff_on_warn
While doing some tracing, I found a huge portion of the per-cpu buffer was taken by printk/serial output because we're disabling the trace far too late (after printing the CUT string). Improve matters for architectures that have GENERIC_BUG + _BUG_FLAGS by killing the tracer in the exception handler before printing anything much. Link: https://lkml.kernel.org/r/20200528145240.GF706495@hirez.programming.kicks-ass.net Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
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Mark Brown
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5fb565b69d
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Merge remote-tracking branch 'regulator/for-5.8' into regulator-linus | ||
Petr Mladek
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8b390ab725 | Merge branch 'for-5.8-printf-time64_t' into for-linus | ||
Petr Mladek
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d053cf0d77 | Merge branch 'for-5.8' into for-linus | ||
Al Viro
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5904122c46 |
take the dummy csum_and_copy_from_user() into net/checksum.h
now that can be done conveniently - all non-trivial cases have _HAVE_ARCH_COPY_AND_CSUM_FROM_USER defined, so the fallback in net/checksum.h is used only for dummy (copy_from_user, then csum_partial) implementation. Allowing us to get rid of all dummy instances, both of csum_and_copy_from_user() and csum_partial_copy_from_user(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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Nick Desaulniers
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10e68b02c8 |
Makefile: support compressed debug info
As debug information gets larger and larger, it helps significantly save the size of vmlinux images to compress the information in the debug information sections. Note: this debug info is typically split off from the final compressed kernel image, which is why vmlinux is what's used in conjunction with GDB. Minimizing the debug info size should have no impact on boot times, or final compressed kernel image size. All of the debug sections will have a `C` flag set. $ readelf -S <object file> $ bloaty vmlinux.gcc75.compressed.dwarf4 -- \ vmlinux.gcc75.uncompressed.dwarf4 FILE SIZE VM SIZE -------------- -------------- +0.0% +18 [ = ] 0 [Unmapped] -73.3% -114Ki [ = ] 0 .debug_aranges -76.2% -2.01Mi [ = ] 0 .debug_frame -73.6% -2.89Mi [ = ] 0 .debug_str -80.7% -4.66Mi [ = ] 0 .debug_abbrev -82.9% -4.88Mi [ = ] 0 .debug_ranges -70.5% -9.04Mi [ = ] 0 .debug_line -79.3% -10.9Mi [ = ] 0 .debug_loc -39.5% -88.6Mi [ = ] 0 .debug_info -18.2% -123Mi [ = ] 0 TOTAL $ bloaty vmlinux.clang11.compressed.dwarf4 -- \ vmlinux.clang11.uncompressed.dwarf4 FILE SIZE VM SIZE -------------- -------------- +0.0% +23 [ = ] 0 [Unmapped] -65.6% -871 [ = ] 0 .debug_aranges -77.4% -1.84Mi [ = ] 0 .debug_frame -82.9% -2.33Mi [ = ] 0 .debug_abbrev -73.1% -2.43Mi [ = ] 0 .debug_str -84.8% -3.07Mi [ = ] 0 .debug_ranges -65.9% -8.62Mi [ = ] 0 .debug_line -86.2% -40.0Mi [ = ] 0 .debug_loc -42.0% -64.1Mi [ = ] 0 .debug_info -22.1% -122Mi [ = ] 0 TOTAL For x86_64 defconfig + LLVM=1 (before): Elapsed (wall clock) time (h:mm:ss or m:ss): 3:22.03 Maximum resident set size (kbytes): 43856 For x86_64 defconfig + LLVM=1 (after): Elapsed (wall clock) time (h:mm:ss or m:ss): 3:32.52 Maximum resident set size (kbytes): 1566776 Thanks to: Nick Clifton helped us to provide the minimal binutils version. Sedat Dilek found an increase in size of debug .deb package. Cc: Nick Clifton <nickc@redhat.com> Suggested-by: David Blaikie <blaikie@google.com> Reviewed-by: Fangrui Song <maskray@google.com> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
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Sebastian Andrzej Siewior
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cfa6705d89 |
radix-tree: Use local_lock for protection
The radix-tree and idr preload mechanisms use preempt_disable() to protect the complete operation between xxx_preload() and xxx_preload_end(). As the code inside the preempt disabled section acquires regular spinlocks, which are converted to 'sleeping' spinlocks on a PREEMPT_RT kernel and eventually calls into a memory allocator, this conflicts with the RT semantics. Convert it to a local_lock which allows RT kernels to substitute them with a real per CPU lock. On non RT kernels this maps to preempt_disable() as before, but provides also lockdep coverage of the critical region. No functional change. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20200527201119.1692513-3-bigeasy@linutronix.de |
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Greg Kroah-Hartman
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46d26819a5 |
software node: implement software_node_unregister()
Sometimes it is better to unregister individual nodes instead of trying to do them all at once with software_node_unregister_nodes(), so create software_node_unregister() so that you can unregister them one at a time. This is especially important when creating nodes in a hierarchy, with parent -> children representations. Children always need to be removed before a parent is, as the swnode logic assumes this is going to be the case. Fix up the lib/test_printf.c fwnode_pointer() test which to use this new function as it had the problem of tearing things down in the backwards order. Fixes: f1ce39df508d ("lib/test_printf: Add tests for %pfw printk modifier") Cc: stable <stable@vger.kernel.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Brendan Higgins <brendanhiggins@google.com> Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Sakari Ailus <sakari.ailus@linux.intel.com> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Reported-by: kernel test robot <rong.a.chen@intel.com> Reported-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Petr Mladek <pmladek@suse.com> Tested-by: Randy Dunlap <rdunlap@infradead.org> Tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20200524153041.2361-1-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Arnd Bergmann
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e1d908a761 |
ARM64: hisi: SoC driver updates for 5.8
- Generate consistent behaviour for logic_pio by defining and using generic _inX() and _outX() in asm-generic/io.h which have per-arch overrideable barriers. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJevjd1AAoJEAvIV27ZiWZcyoUQAIDN4NeFM7lIpjDCNgS3P7W6 WG+5EP/BHdnnCBarRYqaZR2B2pnwiTkHKMkDpe8aoaE51udT9bJA8dp162V2eEy0 j/0rOOxR14k2Nj+BoNpsHbJllPQLVPkXehOpwsUhm1qGiE5w8nwZ4iG/BaW97Nbj TcPYnesviuRf1ghNLNyjYmkuT2zou7shJqCpKHt58o+O3S3RT7c+fbbfBy+DVSmx 3yBersTVOklHQIqCuGPFzy/+qtMQh1iAiRVefkrYG/WOyare4Rc8DZfs0hf8Ljdr AJdIGBB/12H+jPUn3wdpdi0vrJ6ClUaacRvGz3Ba30eMDRFsH9ZStwWZXIO8Zoz9 wl7kOFwX8UaHO881jvF/LTSYm+7cs/FfCV4MLCHQBx2zepxxQwM3/LAvV5zgVUA0 ZUqgUVeEOTS/WTEE8420oHtL7p/zidG1K1cZSZoh727xoBsC9r5aGw14ceLK+Y9j FknxIhqITdO9BRp5vkBgQwBMDDK5SkBFdB3ZT2oZkXYzJzFxD2BHQAsFNcR7oaio zyQVPL7RdK40EN/WASF69m/SB4uefPPxvvSUvP77ucjMdvF006CPE+H8oS+OWZPr HUhp0rLZNP3bgYv2R4Ln+1CzOS8Llfb8o+tqg/C0qWFp5kadW6469xitkvlppBJA uBLmjjElHLg4mWG9vhvf =kbAg -----END PGP SIGNATURE----- Merge tag 'hisi-drivers-for-5.8' of git://github.com/hisilicon/linux-hisi into arm/drivers ARM64: hisi: SoC driver updates for 5.8 - Generate consistent behaviour for logic_pio by defining and using generic _inX() and _outX() in asm-generic/io.h which have per-arch overrideable barriers. * tag 'hisi-drivers-for-5.8' of git://github.com/hisilicon/linux-hisi: logic_pio: Use _inX() and _outX() logic_pio: Improve macro argument name io: Provide _inX() and _outX() |
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Greg Kroah-Hartman
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0e5596c54a |
kobject: send KOBJ_REMOVE uevent when the object is removed from sysfs
It is possible for a KOBJ_REMOVE uevent to be sent to userspace way after the files are actually gone from sysfs, due to how reference counting for kobjects work. This should not be a problem, but it would be good to properly send the information when things are going away, not at some later point in time in the future. Before this move, if a kobject's parent was torn down before the child, when the call to kobject_uevent() happened, the parent walk to try to reconstruct the full path of the kobject could be a total mess and cause crashes. It's not good to try to tear down a kobject tree from top down, but let's at least try to not to crash if a user does so. Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/20200524153041.2361-2-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Greg Kroah-Hartman
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f7d8f3f092 |
Merge 5.7-rc7 into driver-core-next
We need the driver core fixes in here as well Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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David S. Miller
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13209a8f73 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
The MSCC bug fix in 'net' had to be slightly adjusted because the register accesses are done slightly differently in net-next. Signed-off-by: David S. Miller <davem@davemloft.net> |
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Miquel Raynal
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1759279ad1 |
lib/bch: Allow easy bit swapping
It seems that several hardware ECC engine use a swapped representation of bytes compared to software. This might having to do with how the ECC engine is wired to the NAND controller or the order the bits are passed to the hardware BCH logic. This means that when the software BCH engine is working in conjunction with data generated with hardware, sometimes we might need to swap the bits inside bytes, eg: 0x0A = b0000_1010 -> b0101_0000 = 0x50 Make it possible by adding a boolean to the BCH initialization routine. Regarding the implementation itself, this is a rather simple approach that can probably be enhanced in the future by preparing the ->a_{mod,pow}_tab tables with the swapping in mind. Suggested-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-3-miquel.raynal@bootlin.com |
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Miquel Raynal
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c8ae3f744d |
lib/bch: Rework a little bit the exported function names
There are four exported functions, all suffixed by _bch, which is clearly not the norm. Let's rename them by prefixing them with bch_ instead. This is a mechanical change: init_bch -> bch_init free_bch -> bch_free encode_bch -> bch_encode decode_bch -> bch_decode Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Link: https://lore.kernel.org/linux-mtd/20200519074549.23673-2-miquel.raynal@bootlin.com |