12497 Commits

Author SHA1 Message Date
H. Nikolaus Schaller
28bbbb9875 mips: Fix non-POSIX regexp
When cross compiling a MIPS kernel on a BSD based HOSTCC leads
to errors like

  SYNC    include/config/auto.conf.cmd - due to: .config
egrep: empty (sub)expression
  UPD     include/config/kernel.release
  HOSTCC  scripts/dtc/dtc.o - due to target missing

It turns out that egrep uses this egrep pattern:

		(|MINOR_|PATCHLEVEL_)

This is not valid syntax or gives undefined results according
to POSIX 9.5.3 ERE Grammar

	https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html

It seems to be silently accepted by the Linux egrep implementation
while a BSD host complains.

Such patterns can be replaced by a transformation like

	"(|p1|p2)" -> "(p1|p2)?"

Fixes: 48c35b2d245f ("[MIPS] There is no __GNUC_MAJOR__")
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2021-08-05 20:52:03 +09:00
Huang Pei
6aa3246729 MIPS: check return value of pgtable_pmd_page_ctor
+. According to Documentation/vm/split_page_table_lock, handle failure
of pgtable_pmd_page_ctor

+. Use GFP_KERNEL_ACCOUNT instead of GFP_KERNEL|__GFP_ACCOUNT

+. Adjust coding style

Fixes: ed914d48b6a1 ("MIPS: add PMD table accounting into MIPS')
Reported-by: Joshua Kinard <kumba@gentoo.org>
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Reviewed-by: Joshua Kinard <kumba@gentoo.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-08-05 11:45:42 +02:00
Rui Wang
cb95ea79b3 MIPS: locking/atomic: Fix atomic{_64,}_sub_if_positive
This looks like a typo and that caused atomic64 test failed.

Signed-off-by: Rui Wang <wangrui@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-08-05 11:01:18 +02:00
Randy Dunlap
ad548993a6 MIPS: loongson2ef: don't build serial.o unconditionally
LOONGSON_UART_BASE depends on EARLY_PRINTK || SERIAL_8250, but when
neither of these Kconfig symbols is set, the kernel build has errors:

../arch/mips/loongson2ef/common/serial.c: In function 'serial_init':
../arch/mips/loongson2ef/common/serial.c:66:25: error: 'loongson_uart_base' undeclared (first use in this function)
   66 |                         loongson_uart_base;
../arch/mips/loongson2ef/common/serial.c:66:25: note: each undeclared identifier is reported only once for each function it appears in
../arch/mips/loongson2ef/common/serial.c:68:41: error: '_loongson_uart_base' undeclared (first use in this function)
   68 |                         (void __iomem *)_loongson_uart_base;

Fix this by building serial.o only when one (or both) of these
Kconfig symbols is enabled.

Tested with:
	(a) EARLY_PRINTK=y, SERIAL_8250 not set;
	(b) EARLY_PRINTK=y, SERIAL_8250=y;
	(c) EARLY_PRINTK=y, SERIAL_8250=m.
	(d) EARLY_PRINTK not set, SERIAL_8250=y;
	(e) EARLY_PRINTK not set, SERIAL_8250=m;
	(f) EARLY_PRINTK not set, SERIAL_8250 not set.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-08-05 10:58:21 +02:00
Sebastian Andrzej Siewior
730d070ae9 MIPS: Replace deprecated CPU-hotplug functions.
The functions get_online_cpus() and put_online_cpus() have been
deprecated during the CPU hotplug rework. They map directly to
cpus_read_lock() and cpus_read_unlock().

Replace deprecated CPU-hotplug functions with the official version.
The behavior remains unchanged.

Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-08-05 10:57:01 +02:00
Pavel Tikhomirov
04190bf894 sock: allow reading and changing sk_userlocks with setsockopt
SOCK_SNDBUF_LOCK and SOCK_RCVBUF_LOCK flags disable automatic socket
buffers adjustment done by kernel (see tcp_fixup_rcvbuf() and
tcp_sndbuf_expand()). If we've just created a new socket this adjustment
is enabled on it, but if one changes the socket buffer size by
setsockopt(SO_{SND,RCV}BUF*) it becomes disabled.

CRIU needs to call setsockopt(SO_{SND,RCV}BUF*) on each socket on
restore as it first needs to increase buffer sizes for packet queues
restore and second it needs to restore back original buffer sizes. So
after CRIU restore all sockets become non-auto-adjustable, which can
decrease network performance of restored applications significantly.

CRIU need to be able to restore sockets with enabled/disabled adjustment
to the same state it was before dump, so let's add special setsockopt
for it.

Let's also export SOCK_SNDBUF_LOCK and SOCK_RCVBUF_LOCK flags to uAPI so
that using these interface one can reenable automatic socket buffer
adjustment on their sockets.

Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-04 12:52:03 +01:00
Christoph Hellwig
4c7251e1b5 MIPS: don't include <linux/genhd.h> in <asm/mach-rc32434/rb.h>
There is no need to include genhd.h from a random arch header, and not
doing so prevents the possibility for nasty include loops.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/r/20210727055646.118787-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-08-02 13:37:27 -06:00
Jakub Kicinski
d2e11fd2b7 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicting commits, all resolutions pretty trivial:

drivers/bus/mhi/pci_generic.c
  5c2c85315948 ("bus: mhi: pci-generic: configurable network interface MRU")
  56f6f4c4eb2a ("bus: mhi: pci_generic: Apply no-op for wake using sideband wake boolean")

drivers/nfc/s3fwrn5/firmware.c
  a0302ff5906a ("nfc: s3fwrn5: remove unnecessary label")
  46573e3ab08f ("nfc: s3fwrn5: fix undefined parameter values in dev_err()")
  801e541c79bb ("nfc: s3fwrn5: fix undefined parameter values in dev_err()")

MAINTAINERS
  7d901a1e878a ("net: phy: add Maxlinear GPY115/21x/24x driver")
  8a7b46fa7902 ("MAINTAINERS: add Yasushi SHOJI as reviewer for the Microchip CAN BUS Analyzer Tool driver")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-07-31 09:14:46 -07:00
Linus Torvalds
c7d1022326 Networking fixes for 5.14-rc4, including fixes from bpf, can, WiFi (mac80211)
and netfilter trees.
 
 Current release - regressions:
 
  - mac80211: fix starting aggregation sessions on mesh interfaces
 
 Current release - new code bugs:
 
  - sctp: send pmtu probe only if packet loss in Search Complete state
 
  - bnxt_en: add missing periodic PHC overflow check
 
  - devlink: fix phys_port_name of virtual port and merge error
 
  - hns3: change the method of obtaining default ptp cycle
 
  - can: mcba_usb_start(): add missing urb->transfer_dma initialization
 
 Previous releases - regressions:
 
  - set true network header for ECN decapsulation
 
  - mlx5e: RX, avoid possible data corruption w/ relaxed ordering and LRO
 
  - phy: re-add check for PHY_BRCM_DIS_TXCRXC_NOENRGY on the BCM54811 PHY
 
  - sctp: fix return value check in __sctp_rcv_asconf_lookup
 
 Previous releases - always broken:
 
  - bpf:
        - more spectre corner case fixes, introduce a BPF nospec
          instruction for mitigating Spectre v4
        - fix OOB read when printing XDP link fdinfo
        - sockmap: fix cleanup related races
 
  - mac80211: fix enabling 4-address mode on a sta vif after assoc
 
  - can:
        - raw: raw_setsockopt(): fix raw_rcv panic for sock UAF
        - j1939: j1939_session_deactivate(): clarify lifetime of
               session object, avoid UAF
        - fix number of identical memory leaks in USB drivers
 
  - tipc:
        - do not blindly write skb_shinfo frags when doing decryption
        - fix sleeping in tipc accept routine
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Networking fixes for 5.14-rc4, including fixes from bpf, can, WiFi
  (mac80211) and netfilter trees.

  Current release - regressions:

   - mac80211: fix starting aggregation sessions on mesh interfaces

  Current release - new code bugs:

   - sctp: send pmtu probe only if packet loss in Search Complete state

   - bnxt_en: add missing periodic PHC overflow check

   - devlink: fix phys_port_name of virtual port and merge error

   - hns3: change the method of obtaining default ptp cycle

   - can: mcba_usb_start(): add missing urb->transfer_dma initialization

  Previous releases - regressions:

   - set true network header for ECN decapsulation

   - mlx5e: RX, avoid possible data corruption w/ relaxed ordering and
     LRO

   - phy: re-add check for PHY_BRCM_DIS_TXCRXC_NOENRGY on the BCM54811
     PHY

   - sctp: fix return value check in __sctp_rcv_asconf_lookup

  Previous releases - always broken:

   - bpf:
       - more spectre corner case fixes, introduce a BPF nospec
         instruction for mitigating Spectre v4
       - fix OOB read when printing XDP link fdinfo
       - sockmap: fix cleanup related races

   - mac80211: fix enabling 4-address mode on a sta vif after assoc

   - can:
       - raw: raw_setsockopt(): fix raw_rcv panic for sock UAF
       - j1939: j1939_session_deactivate(): clarify lifetime of session
         object, avoid UAF
       - fix number of identical memory leaks in USB drivers

   - tipc:
       - do not blindly write skb_shinfo frags when doing decryption
       - fix sleeping in tipc accept routine"

* tag 'net-5.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (91 commits)
  gve: Update MAINTAINERS list
  can: esd_usb2: fix memory leak
  can: ems_usb: fix memory leak
  can: usb_8dev: fix memory leak
  can: mcba_usb_start(): add missing urb->transfer_dma initialization
  can: hi311x: fix a signedness bug in hi3110_cmd()
  MAINTAINERS: add Yasushi SHOJI as reviewer for the Microchip CAN BUS Analyzer Tool driver
  bpf: Fix leakage due to insufficient speculative store bypass mitigation
  bpf: Introduce BPF nospec instruction for mitigating Spectre v4
  sis900: Fix missing pci_disable_device() in probe and remove
  net: let flow have same hash in two directions
  nfc: nfcsim: fix use after free during module unload
  tulip: windbond-840: Fix missing pci_disable_device() in probe and remove
  sctp: fix return value check in __sctp_rcv_asconf_lookup
  nfc: s3fwrn5: fix undefined parameter values in dev_err()
  net/mlx5: Fix mlx5_vport_tbl_attr chain from u16 to u32
  net/mlx5e: Fix nullptr in mlx5e_hairpin_get_mdev()
  net/mlx5: Unload device upon firmware fatal error
  net/mlx5e: Fix page allocation failure for ptp-RQ over SF
  net/mlx5e: Fix page allocation failure for trap-RQ over SF
  ...
2021-07-30 16:01:36 -07:00
Linus Torvalds
f6c5971bb7 libata-5.14-2021-07-30
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Merge tag 'libata-5.14-2021-07-30' of git://git.kernel.dk/linux-block

Pull libata fixlets from Jens Axboe:

 - A fix for PIO highmem (Christoph)

 - Kill HAVE_IDE as it's now unused (Lukas)

* tag 'libata-5.14-2021-07-30' of git://git.kernel.dk/linux-block:
  arch: Kconfig: clean up obsolete use of HAVE_IDE
  libata: fix ata_pio_sector for CONFIG_HIGHMEM
2021-07-30 10:56:47 -07:00
Lukas Bulwahn
094121ef81 arch: Kconfig: clean up obsolete use of HAVE_IDE
The arch-specific Kconfig files use HAVE_IDE to indicate if IDE is
supported.

As IDE support and the HAVE_IDE config vanishes with commit b7fb14d3ac63
("ide: remove the legacy ide driver"), there is no need to mention
HAVE_IDE in all those arch-specific Kconfig files.

The issue was identified with ./scripts/checkkconfigsymbols.py.

Fixes: b7fb14d3ac63 ("ide: remove the legacy ide driver")
Suggested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://lore.kernel.org/r/20210728182115.4401-1-lukas.bulwahn@gmail.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-07-30 08:19:09 -06:00
Arnd Bergmann
e6226997ec asm-generic: reverse GENERIC_{STRNCPY_FROM,STRNLEN}_USER symbols
Most architectures do not need a custom implementation, and in most
cases the generic implementation is preferred, so change the polariy
on these Kconfig symbols to require architectures to select them when
they provide their own version.

The new name is CONFIG_ARCH_HAS_{STRNCPY_FROM,STRNLEN}_USER.

The remaining architectures at the moment are: ia64, mips, parisc,
um and xtensa. We should probably convert these as well, but
I was not sure how far to take this series. Thomas Bogendoerfer
had some concerns about converting mips but may still do some
more detailed measurements to see which version is better.

Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: linux-ia64@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: linux-um@lists.infradead.org
Cc: linux-xtensa@linux-xtensa.org
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Helge Deller <deller@gmx.de> # parisc
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-07-30 10:30:21 +02:00
Colin Ian King
a86aadeff2 MIPS: Alchemy: Fix spelling contraction "cant" -> "can't"
There is a spelling mistake in a pr_warn message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-29 11:41:05 +02:00
David S. Miller
fc16a5322e Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:

====================
pull-request: bpf 2021-07-29

The following pull-request contains BPF updates for your *net* tree.

We've added 9 non-merge commits during the last 14 day(s) which contain
a total of 20 files changed, 446 insertions(+), 138 deletions(-).

The main changes are:

1) Fix UBSAN out-of-bounds splat for showing XDP link fdinfo, from Lorenz Bauer.

2) Fix insufficient Spectre v4 mitigation in BPF runtime, from Daniel Borkmann,
   Piotr Krysiuk and Benedict Schlueter.

3) Batch of fixes for BPF sockmap found under stress testing, from John Fastabend.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-29 00:53:32 +01:00
Daniel Borkmann
f5e81d1117 bpf: Introduce BPF nospec instruction for mitigating Spectre v4
In case of JITs, each of the JIT backends compiles the BPF nospec instruction
/either/ to a machine instruction which emits a speculation barrier /or/ to
/no/ machine instruction in case the underlying architecture is not affected
by Speculative Store Bypass or has different mitigations in place already.

This covers both x86 and (implicitly) arm64: In case of x86, we use 'lfence'
instruction for mitigation. In case of arm64, we rely on the firmware mitigation
as controlled via the ssbd kernel parameter. Whenever the mitigation is enabled,
it works for all of the kernel code with no need to provide any additional
instructions here (hence only comment in arm64 JIT). Other archs can follow
as needed. The BPF nospec instruction is specifically targeting Spectre v4
since i) we don't use a serialization barrier for the Spectre v1 case, and
ii) mitigation instructions for v1 and v4 might be different on some archs.

The BPF nospec is required for a future commit, where the BPF verifier does
annotate intermediate BPF programs with speculation barriers.

Co-developed-by: Piotr Krysiuk <piotras@gmail.com>
Co-developed-by: Benedict Schlueter <benedict.schlueter@rub.de>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Piotr Krysiuk <piotras@gmail.com>
Signed-off-by: Benedict Schlueter <benedict.schlueter@rub.de>
Acked-by: Alexei Starovoitov <ast@kernel.org>
2021-07-29 00:20:56 +02:00
Randy Dunlap
d2ac3a11cb mips: clean up kernel-doc in mm/c-octeon.c
Clean up kernel-doc warnings in arch/mips/mm/c-octeon.c.

   arch/mips/mm/c-octeon.c:34: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Octeon automatically flushes the dcache on tlb changes, so
   arch/mips/mm/c-octeon.c:65: warning: expecting prototype for Flush caches as necessary for all cores affected by a(). Prototype was for octeon_flush_icache_all_cores() instead
   arch/mips/mm/c-octeon.c:99: warning: expecting prototype for Called to flush the icache on all cores(). Prototype was for octeon_flush_icache_all() instead
   arch/mips/mm/c-octeon.c:111: warning: expecting prototype for Called to flush all memory associated with a memory(). Prototype was for octeon_flush_cache_mm() instead
   arch/mips/mm/c-octeon.c:124: warning: Function parameter or member 'start' not described in 'octeon_flush_icache_range'
   arch/mips/mm/c-octeon.c:124: warning: Function parameter or member 'end' not described in 'octeon_flush_icache_range'
   arch/mips/mm/c-octeon.c:124: warning: expecting prototype for Flush a range of kernel addresses out of the icache(). Prototype was for octeon_flush_icache_range() instead
   arch/mips/mm/c-octeon.c:138: warning: expecting prototype for Flush a range out of a vma(). Prototype was for octeon_flush_cache_range() instead
   arch/mips/mm/c-octeon.c:153: warning: expecting prototype for Flush a specific page of a vma(). Prototype was for octeon_flush_cache_page() instead
   arch/mips/mm/c-octeon.c:164: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Probe Octeon's caches
   arch/mips/mm/c-octeon.c:264: warning: expecting prototype for Setup the Octeon cache flush routines(). Prototype was for octeon_cache_init() instead
   arch/mips/mm/c-octeon.c:349: warning: expecting prototype for Called when the the exception is not recoverable(). Prototype was for cache_parity_error_octeon_non_recoverable() instead

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Aditya Srivastava <yashsri421@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-28 11:22:21 +02:00
Randy Dunlap
64c888ce33 mips: clean up kernel-doc in cavium-octeon/*.c
Convert function comments to kernel-doc notation to remove
kernel-doc warnings in arch/mips/cavium-octeon/*.c.
Also clean up the comments in a few places.

   arch/mips/cavium-octeon/flash_setup.c:66: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Module/ driver initialization.
--
   arch/mips/cavium-octeon/setup.c:308: warning: expecting prototype for Return non zero if we are currently running in the Octeon simulator(). Prototype was for octeon_is_simulation() instead
   arch/mips/cavium-octeon/setup.c:314: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Return true if Octeon is in PCI Host mode. This means
   arch/mips/cavium-octeon/setup.c:334: warning: expecting prototype for Get the clock rate of Octeon(). Prototype was for octeon_get_clock_rate() instead
   arch/mips/cavium-octeon/setup.c:351: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Write to the LCD display connected to the bootbus. This display
   arch/mips/cavium-octeon/setup.c:380: warning: expecting prototype for Return the console uart passed by the bootloader(). Prototype was for octeon_get_boot_uart() instead
   arch/mips/cavium-octeon/setup.c:386: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Get the coremask Linux was booted on.
   arch/mips/cavium-octeon/setup.c:399: warning: expecting prototype for Check the hardware BIST results for a CPU(). Prototype was for octeon_check_cpu_bist() instead
   arch/mips/cavium-octeon/setup.c:432: warning: expecting prototype for Reboot Octeon(). Prototype was for octeon_restart() instead
   arch/mips/cavium-octeon/setup.c:452: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Permanently stop a core.
   arch/mips/cavium-octeon/setup.c:475: warning: expecting prototype for Halt the system(). Prototype was for octeon_halt() instead
   arch/mips/cavium-octeon/setup.c:520: warning: expecting prototype for Return a string representing the system type(). Prototype was for octeon_board_type_string() instead
   arch/mips/cavium-octeon/setup.c:661: warning: expecting prototype for Early entry point for arch setup(). Prototype was for prom_init() instead
--
   arch/mips/cavium-octeon/smp.c💯 warning: Function parameter or member 'cpu' not described in 'octeon_send_ipi_single'
   arch/mips/cavium-octeon/smp.c💯 warning: Function parameter or member 'action' not described in 'octeon_send_ipi_single'
   arch/mips/cavium-octeon/smp.c💯 warning: expecting prototype for Cause the function described by call_data to be executed on the passed(). Prototype was for octeon_send_ipi_single() instead
   arch/mips/cavium-octeon/smp.c:119: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Detect available CPUs, populate cpu_possible_mask
   arch/mips/cavium-octeon/smp.c:210: warning: Function parameter or member 'cpu' not described in 'octeon_boot_secondary'
   arch/mips/cavium-octeon/smp.c:210: warning: Function parameter or member 'idle' not described in 'octeon_boot_secondary'
   arch/mips/cavium-octeon/smp.c:210: warning: expecting prototype for Firmware CPU startup hook(). Prototype was for octeon_boot_secondary() instead
   arch/mips/cavium-octeon/smp.c:236: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * After we've done initial boot, this function is called to allow the
   arch/mips/cavium-octeon/smp.c:258: warning: Function parameter or member 'max_cpus' not described in 'octeon_prepare_cpus'
   arch/mips/cavium-octeon/smp.c:258: warning: expecting prototype for Callout to firmware before smp_init(). Prototype was for octeon_prepare_cpus() instead
   arch/mips/cavium-octeon/smp.c:276: warning: expecting prototype for Last chance for the board code to finish SMP initialization before(). Prototype was for octeon_smp_finish() instead

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Aditya Srivastava <yashsri421@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-28 11:22:21 +02:00
Randy Dunlap
16df55ce10 mips: clean up (remove) kernel-doc in cavium-octeon/executive/
Remove all kernel-doc notation in arch/mips/cavium-octeon/executive/.
This removes dozens of kernel-doc warnings.

Most of these functions are static and don't need to be documented
with kernel-doc.
The function comments are still present for anyone who wants to read them.
These files are part of the OCTEON SDK so presumably they are documented
there as well.

   arch/mips/cavium-octeon/executive/cvmx-bootmem.c:61: warning: Function parameter or member 'addr' not described in 'CVMX_BOOTMEM_NAMED_GET_FIELD'
   arch/mips/cavium-octeon/executive/cvmx-bootmem.c:61: warning: Function parameter or member 'field' not described in 'CVMX_BOOTMEM_NAMED_GET_FIELD'
   arch/mips/cavium-octeon/executive/cvmx-bootmem.c:61: warning: expecting prototype for This macro returns a member of the(). Prototype was for CVMX_BOOTMEM_NAMED_GET_FIELD() instead
   arch/mips/cavium-octeon/executive/cvmx-bootmem.c:77: warning: Function parameter or member 'base' not described in '__cvmx_bootmem_desc_get'
   arch/mips/cavium-octeon/executive/cvmx-bootmem.c:77: warning: Function parameter or member 'offset' not described in '__cvmx_bootmem_desc_get'
   arch/mips/cavium-octeon/executive/cvmx-bootmem.c:77: warning: Function parameter or member 'size' not described in '__cvmx_bootmem_desc_get'
   arch/mips/cavium-octeon/executive/cvmx-bootmem.c:77: warning: expecting prototype for This function is the implementation of the get macros defined(). Prototype was for __cvmx_bootmem_desc_get() instead
   arch/mips/cavium-octeon/executive/cvmx-bootmem.c:133: warning: expecting prototype for Allocate a block of memory from the free list that was(). Prototype was for cvmx_bootmem_alloc_range() instead
   arch/mips/cavium-octeon/executive/cvmx-bootmem.c:554: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Finds a named memory block by name.
   arch/mips/cavium-octeon/executive/cvmx-bootmem.c:661: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Frees a named block.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/cavium-octeon/executive/cvmx-helper-board.c:64: warning: expecting prototype for Return the MII PHY address associated with the given IPD(). Prototype was for cvmx_helper_board_get_mii_address() instead
   arch/mips/cavium-octeon/executive/cvmx-helper-board.c:211: warning: expecting prototype for This function is the board specific method of determining an(). Prototype was for __cvmx_helper_board_link_get() instead
   arch/mips/cavium-octeon/executive/cvmx-helper-board.c:278: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * This function is called by cvmx_helper_interface_probe() after it
   arch/mips/cavium-octeon/executive/cvmx-helper-board.c:324: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Get the clock type used for the USB block based on board type.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/cavium-octeon/executive/cvmx-spi.c:77: warning: expecting prototype for Get current SPI4 initialization callbacks(). Prototype was for cvmx_spi_get_callbacks() instead
   arch/mips/cavium-octeon/executive/cvmx-spi.c:87: warning: expecting prototype for Set new SPI4 initialization callbacks(). Prototype was for cvmx_spi_set_callbacks() instead
   arch/mips/cavium-octeon/executive/cvmx-spi.c:92: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Initialize and start the SPI interface.
   arch/mips/cavium-octeon/executive/cvmx-spi.c:151: warning: expecting prototype for This routine restarts the SPI interface after it has lost synchronization(). Prototype was for cvmx_spi_restart_interface() instead
   arch/mips/cavium-octeon/executive/cvmx-spi.c:196: warning: expecting prototype for Callback to perform SPI4 reset(). Prototype was for cvmx_spi_reset_cb() instead
   arch/mips/cavium-octeon/executive/cvmx-spi.c:313: warning: expecting prototype for Callback to setup calendar and miscellaneous settings before clock detection(). Prototype was for cvmx_spi_calendar_setup_cb() instead
   arch/mips/cavium-octeon/executive/cvmx-spi.c:431: warning: expecting prototype for Callback to perform clock detection(). Prototype was for cvmx_spi_clock_detect_cb() instead
   arch/mips/cavium-octeon/executive/cvmx-spi.c:509: warning: expecting prototype for Callback to perform link training(). Prototype was for cvmx_spi_training_cb() instead
   arch/mips/cavium-octeon/executive/cvmx-spi.c:578: warning: expecting prototype for Callback to perform calendar data synchronization(). Prototype was for cvmx_spi_calendar_sync_cb() instead
   arch/mips/cavium-octeon/executive/cvmx-spi.c:634: warning: expecting prototype for Callback to handle interface up(). Prototype was for cvmx_spi_interface_up_cb() instead
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c:67: warning: expecting prototype for Probe a XAUI interface and determine the number of ports(). Prototype was for __cvmx_helper_xaui_probe() instead
   arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c:106: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Bringup and enable a XAUI interface. After this call packet
   arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c:253: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Return the link state of an IPD/PKO port as returned by
   arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c:292: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Configure an IPD/PKO port for the specified link state. This
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/cavium-octeon/executive/cvmx-pko.c:43: warning: Function parameter or member 'interface' not described in '__cvmx_pko_int'
   arch/mips/cavium-octeon/executive/cvmx-pko.c:43: warning: Function parameter or member 'index' not described in '__cvmx_pko_int'
   arch/mips/cavium-octeon/executive/cvmx-pko.c:43: warning: expecting prototype for Internal state of packet output(). Prototype was for __cvmx_pko_int() instead
   arch/mips/cavium-octeon/executive/cvmx-pko.c:186: warning: expecting prototype for Call before any other calls to initialize the packet(). Prototype was for cvmx_pko_initialize_global() instead
   arch/mips/cavium-octeon/executive/cvmx-pko.c:241: warning: expecting prototype for This function does per(). Prototype was for cvmx_pko_initialize_local() instead
   arch/mips/cavium-octeon/executive/cvmx-pko.c:247: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Enables the packet output hardware. It must already be
   arch/mips/cavium-octeon/executive/cvmx-pko.c:270: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Disables the packet output. Does not affect any configuration.
   arch/mips/cavium-octeon/executive/cvmx-pko.c:282: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Reset the packet output.
   arch/mips/cavium-octeon/executive/cvmx-pko.c:293: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Shutdown and free resources required by packet output.
   arch/mips/cavium-octeon/executive/cvmx-pko.c:324: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Configure a output port and the associated queues for use.
   arch/mips/cavium-octeon/executive/cvmx-pko.c:555: warning: expecting prototype for Show map of ports(). Prototype was for cvmx_pko_show_queue_map() instead
   arch/mips/cavium-octeon/executive/cvmx-pko.c:577: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Rate limit a PKO port to a max packets/sec. This function is only
   arch/mips/cavium-octeon/executive/cvmx-pko.c:610: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Rate limit a PKO port to a max bits/sec. This function is only
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/cavium-octeon/executive/cvmx-cmd-queue.c:49: warning: cannot understand function prototype: '__cvmx_cmd_queue_all_state_t *__cvmx_cmd_queue_state_ptr; '
   arch/mips/cavium-octeon/executive/cvmx-cmd-queue.c:53: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Initialize the Global queue state pointer.
   arch/mips/cavium-octeon/executive/cvmx-cmd-queue.c:101: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Initialize a command queue for use. The initial FPA buffer is
   arch/mips/cavium-octeon/executive/cvmx-cmd-queue.c:199: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Shutdown a queue a free it's command buffers to the FPA. The
   arch/mips/cavium-octeon/executive/cvmx-cmd-queue.c:235: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Return the number of command words pending in the queue. This
   arch/mips/cavium-octeon/executive/cvmx-cmd-queue.c:291: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Return the command buffer to be written to. The purpose of this
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c:53: warning: expecting prototype for Probe RGMII ports and determine the number present(). Prototype was for __cvmx_helper_rgmii_probe() instead
   arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c:92: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Put an RGMII interface in loopback mode. Internal packets sent
   arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c:135: warning: expecting prototype for Workaround ASX setup errata with CN38XX pass1(). Prototype was for __cvmx_helper_errata_asx_pass1() instead
   arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c:152: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Configure all of the ASX, GMX, and PKO registers required
   arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c:255: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Return the link state of an IPD/PKO port as returned by
   arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c:284: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Configure an IPD/PKO port for the specified link state. This
--
arch/mips/cavium-octeon/executive/cvmx-l2c.c:768: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Return log base 2 of the number of sets in the L2 cache
   arch/mips/cavium-octeon/executive/cvmx-l2c.c:861: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Flush a line from the L2 cache

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Aditya Srivastava <yashsri421@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-28 11:22:21 +02:00
Eric W. Biederman
c7fff9288d signal: Remove the generic __ARCH_SI_TRAPNO support
Now that __ARCH_SI_TRAPNO is no longer set by any architecture remove
all of the code it enabled from the kernel.

On alpha and sparc a more explict approach of using
send_sig_fault_trapno or force_sig_fault_trapno in the very limited
circumstances where si_trapno was set to a non-zero value.

The generic support that is being removed always set si_trapno on all
fault signals.  With only SIGILL ILL_ILLTRAP on sparc and SIGFPE and
SIGTRAP TRAP_UNK on alpla providing si_trapno values asking all senders
of fault signals to provide an si_trapno value does not make sense.

Making si_trapno an ordinary extension of the fault siginfo layout has
enabled the architecture generic implementation of SIGTRAP TRAP_PERF,
and enables other faulting signals to grow architecture generic
senders as well.

v1: https://lkml.kernel.org/r/m18s4zs7nu.fsf_-_@fess.ebiederm.org
v2: https://lkml.kernel.org/r/20210505141101.11519-8-ebiederm@xmission.com
Link: https://lkml.kernel.org/r/87bl73xx6x.fsf_-_@disp2133
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2021-07-23 13:14:13 -05:00
David S. Miller
5af84df962 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts are simple overlapping changes.

Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-23 16:13:06 +01:00
Arnd Bergmann
1a33b18b3b compat: make linux/compat.h available everywhere
Parts of linux/compat.h are under an #ifdef, but we end up
using more of those over time, moving things around bit by
bit.

To get it over with once and for all, make all of this file
uncondititonal now so it can be accessed everywhere. There
are only a few types left that are in asm/compat.h but not
yet in the asm-generic version, so add those in the process.

This requires providing a few more types in asm-generic/compat.h
that were not already there. The only tricky one is
compat_sigset_t, which needs a little help on 32-bit architectures
and for x86.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-07-23 14:20:24 +01:00
Petr Mladek
86ce91d556 MIPS/asm/printk: Fix build failure caused by printk
The commit 337015573718b161 ("printk: Userspace format indexing support")
caused the following build failure:

arch/mips/kernel/genex.o: In function `handle_mcheck_int':
(.text+0x190c): undefined reference to `printk'
arch/mips/kernel/genex.o: In function `handle_reserved_int':
(.text+0x1c8c): undefined reference to `printk'

Fixes: 337015573718b161 ("printk: Userspace format indexing support")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Suggested-by: Chris Down <chris@chrisdown.name>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/YPbBfdz9srIpI+bb@chrisdown.name
2021-07-23 09:25:30 +02:00
Masahiro Yamada
d656132d2a mips: clean up kvm Makefile
You can use kvm-y instead of kvm-objs to create the composite module.
kvm-$(CONFIG_...) looks cleaner.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-22 12:01:25 +02:00
Masahiro Yamada
d17eef2767 mips: replace deprecated EXTRA_CFLAGS with ccflags-y
As Documentation/kbuild/makefiles.rst says, EXTRA_CFLAGS is deprecated.
Replace it with ccflags-y.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-22 11:56:25 +02:00
Randy Dunlap
73b9919f3c mips: netlogic: fix kernel-doc complaints in fmn-config.c
Clean up kernel-doc warnings in netlogic/xlr/fmn-config.c by using
correct kernel-doc format. Fixes these warnings:

arch/mips/netlogic/xlr/fmn-config.c:106: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * Configure bucket size and credits for a device. 'size' is the size of
arch/mips/netlogic/xlr/fmn-config.c:181: warning: expecting prototype for Setup the FMN details for each devices according to the device available(). Prototype was for xlr_board_info_setup() instead

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Ganesan Ramalingam <ganesanr@broadcom.com>
Cc: John Crispin <blogic@openwrt.org>
Cc: Aditya Srivastava <yashsri421@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-22 11:48:06 +02:00
Randy Dunlap
faff43da31 mips: cavium-octeon: clean up kernel-doc in cvmx-interrupt-decodes.c
Fix kernel-doc warnings reported by kernel test robot:

arch/mips/cavium-octeon/executive/cvmx-interrupt-decodes.c:49: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * __cvmx_interrupt_gmxx_rxx_int_en_enable enables all interrupt bits in cvmx_gmxx_rxx_int_en_t
   arch/mips/cavium-octeon/executive/cvmx-interrupt-decodes.c:230: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * __cvmx_interrupt_pcsx_intx_en_reg_enable enables all interrupt bits in cvmx_pcsx_intx_en_reg_t
   arch/mips/cavium-octeon/executive/cvmx-interrupt-decodes.c:271: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * __cvmx_interrupt_pcsxx_int_en_reg_enable enables all interrupt bits in cvmx_pcsxx_int_en_reg_t
   arch/mips/cavium-octeon/executive/cvmx-interrupt-decodes.c:301: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * __cvmx_interrupt_spxx_int_msk_enable enables all interrupt bits in cvmx_spxx_int_msk_t
   arch/mips/cavium-octeon/executive/cvmx-interrupt-decodes.c:340: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
    * __cvmx_interrupt_stxx_int_msk_enable enables all interrupt bits in cvmx_stxx_int_msk_t

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com>
Cc: Aditya Srivastava <yashsri421@gmail.com>
Cc: David Daney <ddaney@caviumnetworks.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-22 11:47:19 +02:00
Maciej W. Rozycki
9a936d6c3d MIPS: Malta: Do not byte-swap accesses to the CBUS UART
Correct big-endian accesses to the CBUS UART, a Malta on-board discrete
TI16C550C part wired directly to the system controller's device bus, and
do not use byte swapping with the 32-bit accesses to the device.

The CBUS is used for devices such as the boot flash memory needed early
on in system bootstrap even before PCI has been initialised.  Therefore
it uses the system controller's device bus, which follows the endianness
set with the CPU, which means no byte-swapping is ever required for data
accesses to CBUS, unlike with PCI.

The CBUS UART uses the UPIO_MEM32 access method, that is the `readl' and
`writel' MMIO accessors, which on the MIPS platform imply byte-swapping
with PCI systems.  Consequently the wrong byte lane is accessed with the
big-endian configuration and the UART is not correctly accessed.

As it happens the UPIO_MEM32BE access method makes use of the `ioread32'
and `iowrite32' MMIO accessors, which still use `readl' and `writel'
respectively, however they byte-swap data passed, effectively cancelling
swapping done with the accessors themselves and making it suitable for
the CBUS UART.

Make the CBUS UART switch between UPIO_MEM32 and UPIO_MEM32BE then,
based on the endianness selected.  With this change in place the device
is correctly recognised with big-endian Malta at boot, along with the
Super I/O devices behind PCI:

Serial: 8250/16550 driver, 5 ports, IRQ sharing enabled
printk: console [ttyS0] disabled
serial8250.0: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
printk: console [ttyS0] enabled
printk: bootconsole [uart8250] disabled
serial8250.0: ttyS1 at I/O 0x2f8 (irq = 3, base_baud = 115200) is a 16550A
serial8250.0: ttyS2 at MMIO 0x1f000900 (irq = 20, base_baud = 230400) is a 16550A

Fixes: e7c4782f92fc ("[MIPS] Put an end to <asm/serial.h>'s long and annyoing existence")
Cc: stable@vger.kernel.org # v2.6.23+
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2106260524430.37803@angie.orcam.me.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21 12:52:14 +02:00
Uwe Kleine-König
fc7a6209d5 bus: Make remove callback return void
The driver core ignores the return value of this callback because there
is only little it can do when a device disappears.

This is the final bit of a long lasting cleanup quest where several
buses were converted to also return void from their remove callback.
Additionally some resource leaks were fixed that were caused by drivers
returning an error code in the expectation that the driver won't go
away.

With struct bus_type::remove returning void it's prevented that newly
implemented buses return an ignored error code and so don't anticipate
wrong expectations for driver authors.

Reviewed-by: Tom Rix <trix@redhat.com> (For fpga)
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Cornelia Huck <cohuck@redhat.com> (For drivers/s390 and drivers/vfio)
Acked-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> (For ARM, Amba and related parts)
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Chen-Yu Tsai <wens@csie.org> (for sunxi-rsb)
Acked-by: Pali Rohár <pali@kernel.org>
Acked-by: Mauro Carvalho Chehab <mchehab@kernel.org> (for media)
Acked-by: Hans de Goede <hdegoede@redhat.com> (For drivers/platform)
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Acked-By: Vinod Koul <vkoul@kernel.org>
Acked-by: Juergen Gross <jgross@suse.com> (For xen)
Acked-by: Lee Jones <lee.jones@linaro.org> (For mfd)
Acked-by: Johannes Thumshirn <jth@kernel.org> (For mcb)
Acked-by: Johan Hovold <johan@kernel.org>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> (For slimbus)
Acked-by: Kirti Wankhede <kwankhede@nvidia.com> (For vfio)
Acked-by: Maximilian Luz <luzmaximilian@gmail.com>
Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> (For ulpi and typec)
Acked-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> (For ipack)
Acked-by: Geoff Levand <geoff@infradead.org> (For ps3)
Acked-by: Yehezkel Bernat <YehezkelShB@gmail.com> (For thunderbolt)
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> (For intel_th)
Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> (For pcmcia)
Acked-by: Rafael J. Wysocki <rafael@kernel.org> (For ACPI)
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> (rpmsg and apr)
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> (For intel-ish-hid)
Acked-by: Dan Williams <dan.j.williams@intel.com> (For CXL, DAX, and NVDIMM)
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com> (For isa)
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (For firewire)
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> (For hid)
Acked-by: Thorsten Scherer <t.scherer@eckelmann.de> (For siox)
Acked-by: Sven Van Asbroeck <TheSven73@gmail.com> (For anybuss)
Acked-by: Ulf Hansson <ulf.hansson@linaro.org> (For MMC)
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Finn Thain <fthain@linux-m68k.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20210713193522.1770306-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-07-21 11:53:42 +02:00
Joe Perches
e98b461bb0 MIPS: octeon: Remove vestiges of CONFIG_CAVIUM_RESERVE32
The config option CAVIUM_RESERVE32 is not used.
Remove the dead code controlled by it.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-19 13:17:20 +02:00
周琰杰 (Zhou Yanjie)
14d72af7ab MIPS: Ingenic: Add system type for new Ingenic SoCs.
Add JZ4730, JZ4750, JZ4755, JZ4760, JZ4760B, X2000H, and X2100 system
type for cat /proc/cpuinfo to give out JZ4730, JZ4750, JZ4755, JZ4760,
JZ4760B, X2000H, and X2100.

Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Reviewed-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-19 13:16:42 +02:00
Gustavo A. R. Silva
cf6678aec2 MIPS: Fix unreachable code issue
Fix the following warning (mips-randconfig):

arch/mips/include/asm/fpu.h:79:3: warning: fallthrough annotation in unreachable code [-Wimplicit-fallthrough]

Originally, the /* fallthrough */ comment was introduced by commit:

	597ce1723e0f ("MIPS: Support for 64-bit FP with O32 binaries")

and it was wrongly replaced with fallthrough; by commit:

	c9b029903466 ("MIPS: Use fallthrough for arch/mips")

As the original comment is actually useful, fix this issue by
removing unreachable fallthrough; statement and place the original
/* fallthrough */ comment back.

Fixes: c9b029903466 ("MIPS: Use fallthrough for arch/mips")
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/60edca25.k00ut905IFBjPyt5%25lkp@intel.com/
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2021-07-13 15:08:15 -05:00
Gustavo A. R. Silva
bc431d2153 MIPS: Fix fall-through warnings for Clang
Fix the following fallthrough warnings:

arch/mips/mm/tlbex.c:1386:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
arch/mips/mm/tlbex.c:2173:3: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/60edca25.k00ut905IFBjPyt5%25lkp@intel.com/
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2021-07-13 15:00:23 -05:00
Eric W. Biederman
b48c7236b1 exit/bdflush: Remove the deprecated bdflush system call
The bdflush system call has been deprecated for a very long time.
Recently Michael Schmitz tested[1] and found that the last known
caller of of the bdflush system call is unaffected by it's removal.

Since the code is not needed delete it.

[1] https://lkml.kernel.org/r/36123b5d-daa0-6c2b-f2d4-a942f069fd54@gmail.com
Link: https://lkml.kernel.org/r/87sg10quue.fsf_-_@disp2133
Tested-by: Michael Schmitz <schmitzmic@gmail.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Cyril Hrubis <chrubis@suse.cz>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2021-07-12 15:17:47 -05:00
Linus Torvalds
98f7fdced2 Two fixes:
- Fix a MIPS IRQ handling RCU bug
  - Remove a DocBook annotation for a parameter that doesn't exist anymore
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'irq-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Ingo Molnar:
 "Two fixes:

   - Fix a MIPS IRQ handling RCU bug

   - Remove a DocBook annotation for a parameter that doesn't exist
     anymore"

* tag 'irq-urgent-2021-07-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/mips: Fix RCU violation when using irqdomain lookup on interrupt entry
  genirq/irqdesc: Drop excess kernel-doc entry @lookup
2021-07-11 11:17:57 -07:00
Linus Torvalds
81361b837a Kbuild updates for v5.14
- Increase the -falign-functions alignment for the debug option.
 
  - Remove ugly libelf checks from the top Makefile.
 
  - Make the silent build (-s) more silent.
 
  - Re-compile the kernel if KBUILD_BUILD_TIMESTAMP is specified.
 
  - Various script cleanups
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Merge tag 'kbuild-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Increase the -falign-functions alignment for the debug option.

 - Remove ugly libelf checks from the top Makefile.

 - Make the silent build (-s) more silent.

 - Re-compile the kernel if KBUILD_BUILD_TIMESTAMP is specified.

 - Various script cleanups

* tag 'kbuild-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (27 commits)
  scripts: add generic syscallnr.sh
  scripts: check duplicated syscall number in syscall table
  sparc: syscalls: use pattern rules to generate syscall headers
  parisc: syscalls: use pattern rules to generate syscall headers
  nds32: add arch/nds32/boot/.gitignore
  kbuild: mkcompile_h: consider timestamp if KBUILD_BUILD_TIMESTAMP is set
  kbuild: modpost: Explicitly warn about unprototyped symbols
  kbuild: remove trailing slashes from $(KBUILD_EXTMOD)
  kconfig.h: explain IS_MODULE(), IS_ENABLED()
  kconfig: constify long_opts
  scripts/setlocalversion: simplify the short version part
  scripts/setlocalversion: factor out 12-chars hash construction
  scripts/setlocalversion: add more comments to -dirty flag detection
  scripts/setlocalversion: remove workaround for old make-kpkg
  scripts/setlocalversion: remove mercurial, svn and git-svn supports
  kbuild: clean up ${quiet} checks in shell scripts
  kbuild: sink stdout from cmd for silent build
  init: use $(call cmd,) for generating include/generated/compile.h
  kbuild: merge scripts/mkmakefile to top Makefile
  sh: move core-y in arch/sh/Makefile to arch/sh/Kbuild
  ...
2021-07-10 11:01:38 -07:00
Linus Torvalds
379cf80a98 - fix for accesing gic via vdso
- two build fixes
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Merge tag 'mips_5.14_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fixes from Thomas Bogendoerfer:

 - fix for accesing gic via vdso

 - two build fixes

* tag 'mips_5.14_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  MIPS: vdso: Invalid GIC access through VDSO
  mips: disable branch profiling in boot/decompress.o
  mips: always link byteswap helpers into decompressor
2021-07-10 10:36:33 -07:00
Thomas Gleixner
4840048356 irqchip fixes for 5.14, take #1
- Fix a MIPS bug where irqdomain loopkups could occur in a context
   where RCU is not allowed
 
 - Fix a documentation bug for handle_domain_irq
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Merge tag 'irqchip-fixes-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip fixes from Marc Zyngier:

 - Fix a MIPS bug where irqdomain loopkups could occur in a context
   where RCU is not allowed

 - Fix a documentation bug for handle_domain_irq
2021-07-09 15:35:13 +02:00
Martin Fäcknitz
47ce8527fb MIPS: vdso: Invalid GIC access through VDSO
Accessing raw timers (currently only CLOCK_MONOTONIC_RAW) through VDSO
doesn't return the correct time when using the GIC as clock source.
The address of the GIC mapped page is in this case not calculated
correctly. The GIC mapped page is calculated from the VDSO data by
subtracting PAGE_SIZE:

  void *get_gic(const struct vdso_data *data) {
    return (void __iomem *)data - PAGE_SIZE;
  }

However, the data pointer is not page aligned for raw clock sources.
This is because the VDSO data for raw clock sources (CS_RAW = 1) is
stored after the VDSO data for coarse clock sources (CS_HRES_COARSE = 0).
Therefore, only the VDSO data for CS_HRES_COARSE is page aligned:

  +--------------------+
  |                    |
  | vd[CS_RAW]         | ---+
  | vd[CS_HRES_COARSE] |    |
  +--------------------+    | -PAGE_SIZE
  |                    |    |
  |  GIC mapped page   | <--+
  |                    |
  +--------------------+

When __arch_get_hw_counter() is called with &vd[CS_RAW], get_gic returns
the wrong address (somewhere inside the GIC mapped page). The GIC counter
values are not returned which results in an invalid time.

Fixes: a7f4df4e21dd ("MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime()")
Signed-off-by: Martin Fäcknitz <faecknitz@hotsplots.de>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-09 15:29:06 +02:00
Marc Zyngier
1fee9db9b4 irqchip/mips: Fix RCU violation when using irqdomain lookup on interrupt entry
Since d4a45c68dc81 ("irqdomain: Protect the linear revmap with RCU"),
any irqdomain lookup requires the RCU read lock to be held.

This assumes that the architecture code will be structured such as
irq_enter() will be called *before* the interrupt is looked up
in the irq domain. However, this isn't the case for MIPS, and a number
of drivers are structured to do it the other way around when handling
an interrupt in their root irqchip (secondary irqchips are OK by
construction).

This results in a RCU splat on a lockdep-enabled kernel when the kernel
takes an interrupt from idle, as reported by Guenter Roeck.

Note that this could have fired previously if any driver had used
tree-based irqdomain, which always had the RCU requirement.

To solve this, provide a MIPS-specific helper (do_domain_IRQ())
as the pendent of do_IRQ() that will do thing in the right order
(and maybe save some cycles in the process).

Ideally, MIPS would be moved over to using handle_domain_irq(),
but that's much more ambitious.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Guenter Roeck <linux@roeck-us.net>
[maz: add dependency on CONFIG_IRQ_DOMAIN after report from the kernelci bot]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Serge Semin <fancer.lancer@gmail.com>
Link: https://lore.kernel.org/r/20210705172352.GA56304@roeck-us.net
Link: https://lore.kernel.org/r/20210706110647.3979002-1-maz@kernel.org
2021-07-09 10:18:58 +01:00
Aneesh Kumar K.V
dc4875f0e7 mm: rename p4d_page_vaddr to p4d_pgtable and make it return pud_t *
No functional change in this patch.

[aneesh.kumar@linux.ibm.com: m68k build error reported by kernel robot]
  Link: https://lkml.kernel.org/r/87tulxnb2v.fsf@linux.ibm.com

Link: https://lkml.kernel.org/r/20210615110859.320299-2-aneesh.kumar@linux.ibm.com
Link: https://lore.kernel.org/linuxppc-dev/CAHk-=wi+J+iodze9FtjM3Zi4j4OeS+qqbKxME9QN4roxPEXH9Q@mail.gmail.com/
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Hugh Dickins <hughd@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-08 11:48:22 -07:00
Aneesh Kumar K.V
9cf6fa2458 mm: rename pud_page_vaddr to pud_pgtable and make it return pmd_t *
No functional change in this patch.

[aneesh.kumar@linux.ibm.com: fix]
  Link: https://lkml.kernel.org/r/87wnqtnb60.fsf@linux.ibm.com
[sfr@canb.auug.org.au: another fix]
  Link: https://lkml.kernel.org/r/20210619134410.89559-1-aneesh.kumar@linux.ibm.com

Link: https://lkml.kernel.org/r/20210615110859.320299-1-aneesh.kumar@linux.ibm.com
Link: https://lore.kernel.org/linuxppc-dev/CAHk-=wi+J+iodze9FtjM3Zi4j4OeS+qqbKxME9QN4roxPEXH9Q@mail.gmail.com/
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Hugh Dickins <hughd@google.com>
Cc: Joel Fernandes <joel@joelfernandes.org>
Cc: Kalesh Singh <kaleshsingh@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-08 11:48:22 -07:00
Linus Torvalds
c932ed0adb TTY / Serial patches for 5.14-rc1
Here is the big set of tty and serial driver patches for 5.14-rc1.
 
 A bit more than normal, but nothing major, lots of cleanups.  Highlights
 are:
 	- lots of tty api cleanups and mxser driver cleanups from Jiri
 	- build warning fixes
 	- various serial driver updates
 	- coding style cleanups
 	- various tty driver minor fixes and updates
 	- removal of broken and disable r3964 line discipline (finally!)
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial updates from Greg KH:
 "Here is the big set of tty and serial driver patches for 5.14-rc1.

  A bit more than normal, but nothing major, lots of cleanups.
  Highlights are:

   - lots of tty api cleanups and mxser driver cleanups from Jiri

   - build warning fixes

   - various serial driver updates

   - coding style cleanups

   - various tty driver minor fixes and updates

   - removal of broken and disable r3964 line discipline (finally!)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (227 commits)
  serial: mvebu-uart: remove unused member nb from struct mvebu_uart
  arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
  dt-bindings: mvebu-uart: fix documentation
  serial: mvebu-uart: correctly calculate minimal possible baudrate
  serial: mvebu-uart: do not allow changing baudrate when uartclk is not available
  serial: mvebu-uart: fix calculation of clock divisor
  tty: make linux/tty_flip.h self-contained
  serial: Prefer unsigned int to bare use of unsigned
  serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs
  serial: qcom_geni_serial: use DT aliases according to DT bindings
  Revert "tty: serial: Add UART driver for Cortina-Access platform"
  tty: serial: Add UART driver for Cortina-Access platform
  MAINTAINERS: add me back as mxser maintainer
  mxser: Documentation, fix typos
  mxser: Documentation, make the docs up-to-date
  mxser: Documentation, remove traces of callout device
  mxser: introduce mxser_16550A_or_MUST helper
  mxser: rename flags to old_speed in mxser_set_serial_info
  mxser: use port variable in mxser_set_serial_info
  mxser: access info->MCR under info->slock
  ...
2021-07-05 14:08:24 -07:00
Linus Torvalds
a16d8644ba Staging / IIO driver patches for 5.14-rc1
Here is the big set of IIO and staging driver patches for 5.14-rc1.
 
 Loads of IIO driver updates and additions in here, the shortlog has the
 full details.
 
 For the staging side, we moved a few drivers out of staging, and deleted
 the kpc2000 drivers as the original developer asked us to because no one
 was working on them anymore.
 
 Also in here are loads of coding style cleanups due to different intern
 projects focusing on the staging tree to try to get experience doing
 kernel development.
 
 All of these have been in the linux-next tree for a while with no
 reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging / IIO driver updates from Greg KH:
 "Here is the big set of IIO and staging driver patches for 5.14-rc1.

  Loads of IIO driver updates and additions in here, the shortlog has
  the full details.

  For the staging side, we moved a few drivers out of staging, and
  deleted the kpc2000 drivers as the original developer asked us to
  because no one was working on them anymore.

  Also in here are loads of coding style cleanups due to different
  intern projects focusing on the staging tree to try to get experience
  doing kernel development.

  All of these have been in the linux-next tree for a while with no
  reported problems"

* tag 'staging-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (744 commits)
  staging: hi6421-spmi-pmic: cleanup some macros
  staging: hi6421-spmi-pmic: change identation of a table
  staging: hi6421-spmi-pmic: change a return code
  staging: hi6421-spmi-pmic: better name IRQs
  staging: hi6421-spmi-pmic: use devm_request_threaded_irq()
  staging: hisilicon,hi6421-spmi-pmic.yaml: cleanup descriptions
  spmi: hisi-spmi-controller: move driver from staging
  phy: phy-hi3670-usb3: move driver from staging into phy
  staging: rtl8188eu: remove include/rtw_debug.h header
  staging: rtl8188eu: remove GlobalDebugLevel variable
  staging: rtl8188eu: remove DRIVER_PREFIX preprocessor definition
  staging: rtl8188eu: remove RT_TRACE macro
  staging: rtl8188eu: remove all RT_TRACE calls from hal/rtl8188eu_recv.c
  staging: rtl8188eu: remove all RT_TRACE calls from hal/hal_intf.c
  staging: rtl8188eu: remove all RT_TRACE calls from hal/rtl8188eu_xmit.c
  staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_xmit.c
  staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_pwrctrl.c
  staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_recv.c
  staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_ioctl_set.c
  staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_ieee80211.c
  ...
2021-07-05 14:01:53 -07:00
Randy Dunlap
97e488073c mips: disable branch profiling in boot/decompress.o
Use DISABLE_BRANCH_PROFILING for arch/mips/boot/compressed/decompress.o
to prevent linkage errors.

mips64-linux-ld: arch/mips/boot/compressed/decompress.o: in function `LZ4_decompress_fast_extDict':
decompress.c:(.text+0x8c): undefined reference to `ftrace_likely_update'
mips64-linux-ld: decompress.c:(.text+0xf4): undefined reference to `ftrace_likely_update'
mips64-linux-ld: decompress.c:(.text+0x200): undefined reference to `ftrace_likely_update'
mips64-linux-ld: decompress.c:(.text+0x230): undefined reference to `ftrace_likely_update'
mips64-linux-ld: decompress.c:(.text+0x320): undefined reference to `ftrace_likely_update'
mips64-linux-ld: arch/mips/boot/compressed/decompress.o:decompress.c:(.text+0x3f4): more undefined references to `ftrace_likely_update' follow

Fixes: e76e1fdfa8f8 ("lib: add support for LZ4-compressed kernel")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: linux-mips@vger.kernel.org
Cc: Kyungsik Lee <kyungsik.lee@lge.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-05 17:04:01 +02:00
Arnd Bergmann
cddc40f561 mips: always link byteswap helpers into decompressor
My series to clean up the unaligned access implementation
across architectures caused some mips randconfig builds to
fail with:

   mips64-linux-ld: arch/mips/boot/compressed/decompress.o: in function `decompress_kernel':
   decompress.c:(.text.decompress_kernel+0x54): undefined reference to `__bswapsi2'

It turns out that this problem has already been fixed for the XZ
decompressor but now it also shows up in (at least) LZO and LZ4.  From my
analysis I concluded that the compiler could always have emitted those
calls, but the different implementation allowed it to make otherwise
better decisions about not inlining the byteswap, which results in the
link error when the out-of-line code is missing.

While it could be addressed by adding it to the two decompressor
implementations that are known to be affected, but as this only adds
112 bytes to the kernel, the safer choice is to always add them.

Fixes: c50ec6787536 ("MIPS: zboot: Fix the build with XZ compression on older GCC versions")
Fixes: 0652035a5794 ("asm-generic: unaligned: remove byteshift helpers")
Link: https://lore.kernel.org/linux-mm/202106301304.gz2wVY9w-lkp@intel.com/
Link: https://lore.kernel.org/linux-mm/202106260659.TyMe8mjr-lkp@intel.com/
Link: https://lore.kernel.org/linux-mm/202106172016.onWT6Tza-lkp@intel.com/
Link: https://lore.kernel.org/linux-mm/202105231743.JJcALnhS-lkp@intel.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-07-05 17:03:11 +02:00
Linus Torvalds
4cad671979 asm-generic/unaligned: Unify asm/unaligned.h around struct helper
The get_unaligned()/put_unaligned() helpers are traditionally architecture
 specific, with the two main variants being the "access-ok.h" version
 that assumes unaligned pointer accesses always work on a particular
 architecture, and the "le-struct.h" version that casts the data to a
 byte aligned type before dereferencing, for architectures that cannot
 always do unaligned accesses in hardware.
 
 Based on the discussion linked below, it appears that the access-ok
 version is not realiable on any architecture, but the struct version
 probably has no downsides. This series changes the code to use the
 same implementation on all architectures, addressing the few exceptions
 separately.
 
 Link: https://lore.kernel.org/lkml/75d07691-1e4f-741f-9852-38c0b4f520bc@synopsys.com/
 Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100363
 Link: https://lore.kernel.org/lkml/20210507220813.365382-14-arnd@kernel.org/
 Link: git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git unaligned-rework-v2
 Link: https://lore.kernel.org/lkml/CAHk-=whGObOKruA_bU3aPGZfoDqZM1_9wBkwREp0H0FgR-90uQ@mail.gmail.com/
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Merge tag 'asm-generic-unaligned-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm/unaligned.h unification from Arnd Bergmann:
 "Unify asm/unaligned.h around struct helper

  The get_unaligned()/put_unaligned() helpers are traditionally
  architecture specific, with the two main variants being the
  "access-ok.h" version that assumes unaligned pointer accesses always
  work on a particular architecture, and the "le-struct.h" version that
  casts the data to a byte aligned type before dereferencing, for
  architectures that cannot always do unaligned accesses in hardware.

  Based on the discussion linked below, it appears that the access-ok
  version is not realiable on any architecture, but the struct version
  probably has no downsides. This series changes the code to use the
  same implementation on all architectures, addressing the few
  exceptions separately"

Link: https://lore.kernel.org/lkml/75d07691-1e4f-741f-9852-38c0b4f520bc@synopsys.com/
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100363
Link: https://lore.kernel.org/lkml/20210507220813.365382-14-arnd@kernel.org/
Link: git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git unaligned-rework-v2
Link: https://lore.kernel.org/lkml/CAHk-=whGObOKruA_bU3aPGZfoDqZM1_9wBkwREp0H0FgR-90uQ@mail.gmail.com/

* tag 'asm-generic-unaligned-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  asm-generic: simplify asm/unaligned.h
  asm-generic: uaccess: 1-byte access is always aligned
  netpoll: avoid put_unaligned() on single character
  mwifiex: re-fix for unaligned accesses
  apparmor: use get_unaligned() only for multi-byte words
  partitions: msdos: fix one-byte get_unaligned()
  asm-generic: unaligned always use struct helpers
  asm-generic: unaligned: remove byteshift helpers
  powerpc: use linux/unaligned/le_struct.h on LE power7
  m68k: select CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
  sh: remove unaligned access for sh4a
  openrisc: always use unaligned-struct header
  asm-generic: use asm-generic/unaligned.h for most architectures
2021-07-02 12:43:40 -07:00
Linus Torvalds
71bd934101 Merge branch 'akpm' (patches from Andrew)
Merge more updates from Andrew Morton:
 "190 patches.

  Subsystems affected by this patch series: mm (hugetlb, userfaultfd,
  vmscan, kconfig, proc, z3fold, zbud, ras, mempolicy, memblock,
  migration, thp, nommu, kconfig, madvise, memory-hotplug, zswap,
  zsmalloc, zram, cleanups, kfence, and hmm), procfs, sysctl, misc,
  core-kernel, lib, lz4, checkpatch, init, kprobes, nilfs2, hfs,
  signals, exec, kcov, selftests, compress/decompress, and ipc"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (190 commits)
  ipc/util.c: use binary search for max_idx
  ipc/sem.c: use READ_ONCE()/WRITE_ONCE() for use_global_lock
  ipc: use kmalloc for msg_queue and shmid_kernel
  ipc sem: use kvmalloc for sem_undo allocation
  lib/decompressors: remove set but not used variabled 'level'
  selftests/vm/pkeys: exercise x86 XSAVE init state
  selftests/vm/pkeys: refill shadow register after implicit kernel write
  selftests/vm/pkeys: handle negative sys_pkey_alloc() return code
  selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random
  kcov: add __no_sanitize_coverage to fix noinstr for all architectures
  exec: remove checks in __register_bimfmt()
  x86: signal: don't do sas_ss_reset() until we are certain that sigframe won't be abandoned
  hfsplus: report create_date to kstat.btime
  hfsplus: remove unnecessary oom message
  nilfs2: remove redundant continue statement in a while-loop
  kprobes: remove duplicated strong free_insn_page in x86 and s390
  init: print out unknown kernel parameters
  checkpatch: do not complain about positive return values starting with EPOLL
  checkpatch: improve the indented label test
  checkpatch: scripts/spdxcheck.py now requires python3
  ...
2021-07-02 12:08:10 -07:00
Linus Torvalds
19b4385922 - added support for OpeneEmbed SOM9331 board
- Ingenic fixes/improvments
 - other fixes and cleanups
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Merge tag 'mips_5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS updates from Thomas Bogendoerfer:

 - add support for OpeneEmbed SOM9331 board

 - Ingenic fixes/improvments

 - other fixes and cleanups

* tag 'mips_5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (39 commits)
  MIPS: Fix PKMAP with 32-bit MIPS huge page support
  MIPS: CI20: Add second percpu timer for SMP.
  MIPS: CI20: Reduce clocksource to 750 kHz.
  MIPS: Ingenic: Add MAC syscon nodes for Ingenic SoCs.
  dt-bindings: clock: Add documentation for MAC PHY control bindings.
  MIPS: X1830: Respect cell count of common properties.
  MIPS: set mips32r5 for virt extensions
  MIPS: loongsoon64: Reserve memory below starting pfn to prevent Oops
  MIPS: MT extensions are not available on MIPS32r1
  mips/kvm: Use BUG_ON instead of if condition followed by BUG
  MIPS: OCTEON: octeon-usb: Use devm_platform_get_and_ioremap_resource()
  MIPS: add PMD table accounting into MIPS'pmd_alloc_one
  MIPS: Loongson64: fix spelling of SPDX tag
  MIPS: ingenic: rs90: Add dedicated VRAM memory region
  MIPS: ingenic: gcw0: Set codec to cap-less mode for FM radio
  MIPS: ingenic: jz4780: Fix I2C nodes to match DT doc
  MIPS: ingenic: Select CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
  MIPS: Kconfig: ingenic: Ensure MACH_INGENIC_GENERIC selects all SoCs
  MIPS: cpu-probe: Fix FPU detection on Ingenic JZ4760(B)
  MIPS: boot: Support specifying UART port on Ingenic SoCs
  ...
2021-07-01 17:03:11 -07:00
Linus Torvalds
a32b344e6f This is the bulk of pin control changes for the v5.14 kernel:
New drivers:
 
 - Last merge window we created a driver for the Ralink RT2880.
   We are now moving the Ralink SoC pin control drivers out of the MIPS
   architecture code and into the pin control subsystem. This concerns
   RT288X, MT7620, RT305X, RT3883 and MT7621.
 
 - Qualcomm SM6125 SoC pin control driver.
 
 - Qualcomm spmi-gpio support for PM7325.
 
 - Qualcomm spmi-mpp also handles PMI8994 (just a compatible string)
 
 - Mediatek MT8365 SoC pin controller.
 
 - New device HID for the AMD GPIO controller.
 
 Improvements:
 
 - Pin bias config support for a slew of Renesas pin controllers.
 
 - Incremental improvements and non-urgent bug fixes to the Renesas
   SoC drivers.
 
 - Implement irq_set_wake on the AMD pin controller so we can wake
   up from external pin events.
 
 Misc:
 
 - Devicetree bindings for the Apple M1 pin controller, we will probably
   see a proper driver for this soon as well.
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Merge tag 'pinctrl-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control updates from Linus Walleij:
 "This is the bulk of pin control changes for the v5.14 kernel. Not so
  much going on. No core changes, just drivers.

  The most interesting would be that MIPS Ralink is migrating to pin
  control and we have some bindings but not yet code for the Apple M1
  pin controller.

  New drivers:

   - Last merge window we created a driver for the Ralink RT2880. We are
     now moving the Ralink SoC pin control drivers out of the MIPS
     architecture code and into the pin control subsystem. This concerns
     RT288X, MT7620, RT305X, RT3883 and MT7621.

   - Qualcomm SM6125 SoC pin control driver.

   - Qualcomm spmi-gpio support for PM7325.

   - Qualcomm spmi-mpp also handles PMI8994 (just a compatible string)

   - Mediatek MT8365 SoC pin controller.

   - New device HID for the AMD GPIO controller.

  Improvements:

   - Pin bias config support for a slew of Renesas pin controllers.

   - Incremental improvements and non-urgent bug fixes to the Renesas
     SoC drivers.

   - Implement irq_set_wake on the AMD pin controller so we can wake up
     from external pin events.

  Misc:

   - Devicetree bindings for the Apple M1 pin controller, we will
     probably see a proper driver for this soon as well"

* tag 'pinctrl-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (54 commits)
  pinctrl: ralink: rt305x: add missing include
  pinctrl: stm32: check for IRQ MUX validity during alloc()
  pinctrl: zynqmp: some code cleanups
  drivers: qcom: pinctrl: Add pinctrl driver for sm6125
  dt-bindings: pinctrl: qcom: sm6125: Document SM6125 pinctrl driver
  dt-bindings: pinctrl: mcp23s08: add documentation for reset-gpios
  pinctrl: mcp23s08: Add optional reset GPIO
  pinctrl: mediatek: fix mode encoding
  pinctrl: mcp23s08: Fix missing unlock on error in mcp23s08_irq()
  pinctrl: bcm: Constify static pinmux_ops
  pinctrl: bcm: Constify static pinctrl_ops
  pinctrl: ralink: move RT288X SoC pinmux config into a new 'pinctrl-rt288x.c' file
  pinctrl: ralink: move MT7620 SoC pinmux config into a new 'pinctrl-mt7620.c' file
  pinctrl: ralink: move RT305X SoC pinmux config into a new 'pinctrl-rt305x.c' file
  pinctrl: ralink: move RT3883 SoC pinmux config into a new 'pinctrl-rt3883.c' file
  pinctrl: ralink: move MT7621 SoC pinmux config into a new 'pinctrl-mt7621.c' file
  pinctrl: ralink: move ralink architecture pinmux header into the driver
  pinctrl: single: config: enable the pin's input
  pinctrl: mtk: Fix mt8365 Kconfig dependency
  pinctrl: mcp23s08: fix race condition in irq handler
  ...
2021-07-01 16:57:14 -07:00
Linus Torvalds
514798d365 This round has a diffstat dominated by Qualcomm clk drivers. Honestly though
that's just a bunch of data so the diffstat reflects that. Looking beyond that
 there's just a bunch of updates all around in various clk drivers. Renesas and
 NXP (for i.MX) are two SoC vendors that have a lot of patches in here. Overall
 the driver changes look to be mostly enabling more clks and non-critical fixes
 that we could hold until the next merge window.
 
 I'm especially excited about the series from Arnd that graduates clkdev to be
 the only implementation of clk_get() and clk_put(). That's a good step in the
 right direction to migreate eveerything over to the common clk framework. Now
 we don't have to worry about clkdev specific details, they're just part of the
 clk API now.
 
 Core:
  - clkdev is now the only option, i.e. clk_get()/clk_put() is implemented in
    only one place in the kernel instead of in drivers/clk/clkdev.c and in
    architectures that want their own implementation
 
 New Drivers:
  - Texas Instruments' LMK04832 Ultra Low-Noise JESD204B Compliant Clock
    Jitter Cleaner With Dual Loop PLLs
  - Qualcomm MDM9607 GCC
  - Qualcomm SC8180X display clks
  - Qualcomm SM6125 GCC
  - Qualcomm SM8250 CAMCC (camera)
  - Renesas RZ/G2L SoC
  - Hisilicon hi3559A SoC
 
 Updates:
  - Stop using clock-output-names in ST clk drivers (yay!)
  - Support secure mode of STM32MP1 SoCs
  - Improve clock support for Actions S500 SoC
  - duty cycle setting support on qcom clks
  - Add TI am33xx spread spectrum clock support
  - Use determine_rate() for the Amlogic pll ops instead of round_rate()
  - Restrict Amlogic gp0/1 and audio plls range on g12a/sm1
  - Improve Amlogic axg-audio controller error on deferral
  - Add NNA clocks on Amlogic g12a
  - Reduce memory footprint of Rockchip PLL rate tables
  - A fix for the newly added Rockchip rk3568 clk driver
  - Exported clock for the newly added Rockchip video decoder
  - Remove audio ipg clock from i.MX8MP
  - Remove deprecated legacy clock binding for i.MX SCU clock driver
  - Use common clk-imx8qxp for both i.MX8QXP and i.MX8QM
  - Add multiple clocks to clk-imx8qxp driver (enet, hdmi, lcdif, audio,
    parallel interface)
  - Add dedicated clock ops for i.MX paralel interface
  - Different fixes for clocks controlled by ATF on i.MX SoCs
  - Add A53/A72 frequency scaling support i.MX clk-scu driver
  - Add special case for DCSS clock on suspend for i.MX clk-scu driver
  - Add parent save/restore on suspend/resume to i.MX clk-scu driver
  - Skip runtime PM enablement for CPU clocks in i.MX clk-scu driver
  - Remove the sys1_pll/sys2_pll clock gates for i.MX8MQ and their
    bindings
  - Tegra clk driver no longer deasserts resets on clk_enable as it
    gets in the way of certain power-up sequences
  - Fix compile testing for Tegra clk driver
  - One patch to fix a divider on the Allwinner v3s Audio PLL
  - Add support for CPU core clock boost modes on Renesas R-Car Gen3
  - Add ISPCS (Image Signal Processor) clocks on Renesas R-Car V3U
  - Switch SH/R-Mobile and R-Car "DIV6" clocks to .determine_rate()
    and improve support for multiple parents
  - Switch Renesas RZ/N1 divider clocks to .determine_rate()
  - Add ZA2 (Audio Clock Generator) clock on Renesas R-Car D3
  - Convert ar7 to common clk framework
  - Convert ralink to common clk framework
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "This round has a diffstat dominated by Qualcomm clk drivers. Honestly
  though that's just a bunch of data so the diffstat reflects that.
  Looking beyond that there's just a bunch of updates all around in
  various clk drivers. Renesas and NXP (for i.MX) are two SoC vendors
  that have a lot of patches in here.

  Overall the driver changes look to be mostly enabling more clks and
  non-critical fixes that we could hold until the next merge window.

  I'm especially excited about the series from Arnd that graduates
  clkdev to be the only implementation of clk_get() and clk_put().
  That's a good step in the right direction to migreate eveerything over
  to the common clk framework. Now we don't have to worry about clkdev
  specific details, they're just part of the clk API now.

  Core:
   - clkdev is now the only option, i.e. clk_get()/clk_put() is
     implemented in only one place in the kernel instead of in
     drivers/clk/clkdev.c and in architectures that want their own
     implementation

  New Drivers:
   - Texas Instruments' LMK04832 Ultra Low-Noise JESD204B Compliant
     Clock Jitter Cleaner With Dual Loop PLLs
   - Qualcomm MDM9607 GCC
   - Qualcomm SC8180X display clks
   - Qualcomm SM6125 GCC
   - Qualcomm SM8250 CAMCC (camera)
   - Renesas RZ/G2L SoC
   - Hisilicon hi3559A SoC

  Updates:
   - Stop using clock-output-names in ST clk drivers (yay!)
   - Support secure mode of STM32MP1 SoCs
   - Improve clock support for Actions S500 SoC
   - duty cycle setting support on qcom clks
   - Add TI am33xx spread spectrum clock support
   - Use determine_rate() for the Amlogic pll ops instead of
     round_rate()
   - Restrict Amlogic gp0/1 and audio plls range on g12a/sm1
   - Improve Amlogic axg-audio controller error on deferral
   - Add NNA clocks on Amlogic g12a
   - Reduce memory footprint of Rockchip PLL rate tables
   - A fix for the newly added Rockchip rk3568 clk driver
   - Exported clock for the newly added Rockchip video decoder
   - Remove audio ipg clock from i.MX8MP
   - Remove deprecated legacy clock binding for i.MX SCU clock driver
   - Use common clk-imx8qxp for both i.MX8QXP and i.MX8QM
   - Add multiple clocks to clk-imx8qxp driver (enet, hdmi, lcdif,
     audio, parallel interface)
   - Add dedicated clock ops for i.MX paralel interface
   - Different fixes for clocks controlled by ATF on i.MX SoCs
   - Add A53/A72 frequency scaling support i.MX clk-scu driver
   - Add special case for DCSS clock on suspend for i.MX clk-scu driver
   - Add parent save/restore on suspend/resume to i.MX clk-scu driver
   - Skip runtime PM enablement for CPU clocks in i.MX clk-scu driver
   - Remove the sys1_pll/sys2_pll clock gates for i.MX8MQ and their
     bindings
   - Tegra clk driver no longer deasserts resets on clk_enable as it
     gets in the way of certain power-up sequences
   - Fix compile testing for Tegra clk driver
   - One patch to fix a divider on the Allwinner v3s Audio PLL
   - Add support for CPU core clock boost modes on Renesas R-Car Gen3
   - Add ISPCS (Image Signal Processor) clocks on Renesas R-Car V3U
   - Switch SH/R-Mobile and R-Car "DIV6" clocks to .determine_rate() and
     improve support for multiple parents
   - Switch Renesas RZ/N1 divider clocks to .determine_rate()
   - Add ZA2 (Audio Clock Generator) clock on Renesas R-Car D3
   - Convert ar7 to common clk framework
   - Convert ralink to common clk framework"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (161 commits)
  clk: zynqmp: Handle divider specific read only flag
  clk: zynqmp: Use firmware specific mux clock flags
  clk: zynqmp: Use firmware specific divider clock flags
  clk: zynqmp: Use firmware specific common clock flags
  clk: lmk04832: Use of match table
  clk: lmk04832: Depend on SPI
  clk: stm32mp1: new compatible for secure RCC support
  dt-bindings: clock: stm32mp1 new compatible for secure rcc
  dt-bindings: reset: add MCU HOLD BOOT ID for SCMI reset domains on stm32mp15
  dt-bindings: reset: add IDs for SCMI reset domains on stm32mp15
  dt-bindings: clock: add IDs for SCMI clocks on stm32mp15
  reset: stm32mp1: remove stm32mp1 reset
  clk: hisilicon: Add clock driver for hi3559A SoC
  dt-bindings: Document the hi3559a clock bindings
  clk: si5341: Add sysfs properties to allow checking/resetting device faults
  clk: si5341: Add silabs,iovdd-33 property
  clk: si5341: Add silabs,xaxb-ext-clk property
  clk: si5341: Allow different output VDD_SEL values
  clk: si5341: Update initialization magic
  clk: si5341: Check for input clock presence and PLL lock on startup
  ...
2021-07-01 13:26:16 -07:00