987828 Commits

Author SHA1 Message Date
Yufeng Mo
eb0faf32b8 net: hns3: split out hclgevf_cmd_send()
hclgevf_cmd_send() is bloated, so split it into separate
functions for readability and maintainability.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 13:13:15 -08:00
Yufeng Mo
76f82fd9b1 net: hns3: split out hclge_cmd_send()
hclge_cmd_send() is bloated, so split it into separate
functions for readability and maintainability.

Signed-off-by: Yufeng Mo <moyufeng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 13:13:15 -08:00
Jian Shen
b3712fa73d net: hns3: split out hclge_dbg_dump_qos_buf_cfg()
hclge_dbg_dump_qos_buf_cfg() is bloated, so split it into
separate functions for readability and maintainability.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 13:13:15 -08:00
Jian Shen
73f7767ed0 net: hns3: refactor out hclgevf_get_rss_tuple()
To improve code readability and maintainability, separate
the flow type parsing part and the converting part from
bloated hclgevf_get_rss_tuple().

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 13:13:15 -08:00
Jian Shen
405642a15c net: hns3: refactor out hclge_get_rss_tuple()
To improve code readability and maintainability, separate
the flow type parsing part and the converting part from
bloated hclge_get_rss_tuple().

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 13:13:15 -08:00
Peng Li
88936e320c net: hns3: refactor out hclge_set_vf_vlan_common()
To improve code readability and maintainability, separate
the command handling part and the status parsing part from
bloated hclge_set_vf_vlan_common().

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 13:13:15 -08:00
Jiaran Zhang
eaede83567 net: hns3: use ipv6_addr_any() helper
Use common ipv6_addr_any() to determine if an addr is ipv6 any addr.

Signed-off-by: Jiaran Zhang <zhangjiaran@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 13:13:15 -08:00
Peng Li
c318af3f56 net: hns3: clean up hns3_dbg_cmd_write()
As more commands are added, hns3_dbg_cmd_write() is going to
get more bloated, so move the part about command check into
a separate function.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 13:13:15 -08:00
Peng Li
433e280277 net: hns3: refactor out hclgevf_cmd_convert_err_code()
To improve code readability and maintainability, refactor
hclgevf_cmd_convert_err_code() with an array of imp_errcode
and common_errno mapping, instead of a bloated switch/case.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 13:13:15 -08:00
Peng Li
1c9a98b0ba net: hns3: refactor out hclge_cmd_convert_err_code()
To improve code readability and maintainability, refactor
hclge_cmd_convert_err_code() with an array of imp_errcode
and common_errno mapping, instead of a bloated switch/case.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-02-12 13:13:15 -08:00
Stanislav Fomichev
90a82b1fa4 tools/resolve_btfids: Add /libbpf to .gitignore
This is what I see after compiling the kernel:

 # bpf-next...bpf-next/master
 ?? tools/bpf/resolve_btfids/libbpf/

Fixes: fc6b48f692f8 ("tools/resolve_btfids: Build libbpf and libsubcmd in separate directories")
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210212010053.668700-1-sdf@google.com
2021-02-12 13:08:26 -08:00
Alexei Starovoitov
aca0b81e5c Merge branch 'introduce bpf_iter for task_vma'
Song Liu says:

====================

This set introduces bpf_iter for task_vma, which can be used to generate
information similar to /proc/pid/maps. Patch 4/4 adds an example that
mimics /proc/pid/maps.

Current /proc/<pid>/maps and /proc/<pid>/smaps provide information of
vma's of a process. However, these information are not flexible enough to
cover all use cases. For example, if a vma cover mixed 2MB pages and 4kB
pages (x86_64), there is no easy way to tell which address ranges are
backed by 2MB pages. task_vma solves the problem by enabling the user to
generate customize information based on the vma (and vma->vm_mm,
vma->vm_file, etc.).

Changes v6 => v7:
  1. Let BPF iter program use bpf_d_path without specifying sleepable.
     (Alexei)

Changes v5 => v6:
  1. Add more comments for task_vma_seq_get_next() to explain the logic
     of find_vma() calls. (Alexei)
  2. Skip vma found by find_vma() when both vm_start and vm_end matches
     prev_vm_[start|end]. Previous versions only compares vm_start.
     IOW, if vma of [4k, 8k] is replaced by [4k, 12k] after relocking
     mmap_lock, v5 will skip the new vma, while v6 will process it.

Changes v4 => v5:
  1. Fix a refcount leak on task_struct. (Yonghong)
  2. Fix the selftest. (Yonghong)

Changes v3 => v4:
  1. Avoid skipping vma by assigning invalid prev_vm_start in
     task_vma_seq_stop(). (Yonghong)
  2. Move "again" label in task_vma_seq_get_next() save a check. (Yonghong)

Changes v2 => v3:
  1. Rewrite 1/4 so that we hold mmap_lock while calling BPF program. This
     enables the BPF program to access the real vma with BTF. (Alexei)
  2. Fix the logic when the control is returned to user space. (Yonghong)
  3. Revise commit log and cover letter. (Yonghong)

Changes v1 => v2:
  1. Small fixes in task_iter.c and the selftests. (Yonghong)
====================

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2021-02-12 12:56:54 -08:00
Song Liu
e8168840e1 selftests/bpf: Add test for bpf_iter_task_vma
The test dumps information similar to /proc/pid/maps. The first line of
the output is compared against the /proc file to make sure they match.

Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210212183107.50963-4-songliubraving@fb.com
2021-02-12 12:56:54 -08:00
Song Liu
3d06f34aa8 bpf: Allow bpf_d_path in bpf_iter program
task_file and task_vma iter programs have access to file->f_path. Enable
bpf_d_path to print paths of these file.

Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210212183107.50963-3-songliubraving@fb.com
2021-02-12 12:56:53 -08:00
Song Liu
3a7b35b899 bpf: Introduce task_vma bpf_iter
Introduce task_vma bpf_iter to print memory information of a process. It
can be used to print customized information similar to /proc/<pid>/maps.

Current /proc/<pid>/maps and /proc/<pid>/smaps provide information of
vma's of a process. However, these information are not flexible enough to
cover all use cases. For example, if a vma cover mixed 2MB pages and 4kB
pages (x86_64), there is no easy way to tell which address ranges are
backed by 2MB pages. task_vma solves the problem by enabling the user to
generate customize information based on the vma (and vma->vm_mm,
vma->vm_file, etc.).

To access the vma safely in the BPF program, task_vma iterator holds
target mmap_lock while calling the BPF program. If the mmap_lock is
contended, task_vma unlocks mmap_lock between iterations to unblock the
writer(s). This lock contention avoidance mechanism is similar to the one
used in show_smaps_rollup().

Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210212183107.50963-2-songliubraving@fb.com
2021-02-12 12:56:53 -08:00
Martin KaFai Lau
a79e88dd2c bpf: selftests: Add non function pointer test to struct_ops
This patch adds a "void *owner" member.  The existing
bpf_tcp_ca test will ensure the bpf_cubic.o and bpf_dctcp.o
can be loaded.

Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210212021037.267278-1-kafai@fb.com
2021-02-12 11:49:36 -08:00
Martin KaFai Lau
d2836dddc9 libbpf: Ignore non function pointer member in struct_ops
When libbpf initializes the kernel's struct_ops in
"bpf_map__init_kern_struct_ops()", it enforces all
pointer types must be a function pointer and rejects
others.  It turns out to be too strict.  For example,
when directly using "struct tcp_congestion_ops" from vmlinux.h,
it has a "struct module *owner" member and it is set to NULL
in a bpf_tcp_cc.o.

Instead, it only needs to ensure the member is a function
pointer if it has been set (relocated) to a bpf-prog.
This patch moves the "btf_is_func_proto(kern_mtype)" check
after the existing "if (!prog) { continue; }".  The original debug
message in "if (!prog) { continue; }" is also removed since it is
no longer valid.  Beside, there is a later debug message to tell
which function pointer is set.

The "btf_is_func_proto(mtype)" has already been guaranteed
in "bpf_object__collect_st_ops_relos()" which has been run
before "bpf_map__init_kern_struct_ops()".  Thus, this check
is removed.

v2:
- Remove outdated debug message (Andrii)
  Remove because there is a later debug message to tell
  which function pointer is set.
- Following mtype->type is no longer needed. Remove:
  "skip_mods_and_typedefs(btf, mtype->type, &mtype_id)"
- Do "if (!prog)" test before skip_mods_and_typedefs.

Fixes: 590a00888250 ("bpf: libbpf: Add STRUCT_OPS support")
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210212021030.266932-1-kafai@fb.com
2021-02-12 11:49:36 -08:00
Linus Torvalds
c6d8570e4d io_uring-5.11-2021-02-12
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Merge tag 'io_uring-5.11-2021-02-12' of git://git.kernel.dk/linux-block

Pull io_uring fix from Jens Axboe:
 "Revert of a patch from this release that caused a regression"

* tag 'io_uring-5.11-2021-02-12' of git://git.kernel.dk/linux-block:
  Revert "io_uring: don't take fs for recvmsg/sendmsg"
2021-02-12 11:48:02 -08:00
Stanislav Fomichev
1e0aa3fb05 libbpf: Use AF_LOCAL instead of AF_INET in xsk.c
We have the environments where usage of AF_INET is prohibited
(cgroup/sock_create returns EPERM for AF_INET). Let's use
AF_LOCAL instead of AF_INET, it should perfectly work with SIOCETHTOOL.

Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Björn Töpel <bjorn.topel@intel.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Link: https://lore.kernel.org/bpf/20210209221826.922940-1-sdf@google.com
2021-02-12 11:36:48 -08:00
Linus Torvalds
a81bfdf8bf drm fixes for 5.11-rc8
ttm:
 - page pool regression fix.
 
 dp_mst:
 - Don't report un-attached ports as connected
 
 amdgpu:
 - Blank screen fix
 
 i915:
 - Ensure Type-C FIA is powered when initializing
 - Fix overlay frontbuffer tracking
 
 sun4i:
 - tcon1 sync polarity fix
 - Always set HDMI clock rate
 - Fix H6 HDMI PHY config
 - Fix H6 max frequency
 
 vc4:
 - Fix buffer overflow
 
 xlnx:
 - Fix memory leak
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Merge tag 'drm-fixes-2021-02-12' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Regular fixes for final, there is a ttm regression fix, dp-mst fix,
  one amdgpu revert, two i915 fixes, and some misc fixes for sun4i,
  xlnx, and vc4.

  All pretty quiet and don't think we have any known outstanding
  regressions.

  ttm:
   - page pool regression fix.

  dp_mst:
   - don't report un-attached ports as connected

  amdgpu:
   - blank screen fix

  i915:
   - ensure Type-C FIA is powered when initializing
   - fix overlay frontbuffer tracking

  sun4i:
   - tcon1 sync polarity fix
   - always set HDMI clock rate
   - fix H6 HDMI PHY config
   - fix H6 max frequency

  vc4:
   - fix buffer overflow

  xlnx:
   - fix memory leak"

* tag 'drm-fixes-2021-02-12' of git://anongit.freedesktop.org/drm/drm:
  drm/ttm: make sure pool pages are cleared
  drm/sun4i: dw-hdmi: Fix max. frequency for H6
  drm/sun4i: Fix H6 HDMI PHY configuration
  drm/sun4i: dw-hdmi: always set clock rate
  drm/sun4i: tcon: set sync polarity for tcon1 channel
  drm/i915: Fix overlay frontbuffer tracking
  Revert "drm/amd/display: Update NV1x SR latency values"
  drm/i915/tgl+: Make sure TypeC FIA is powered up when initializing it
  drm/dp_mst: Don't report ports connected if nothing is attached to them
  drm/xlnx: fix kmemleak by sending vblank_event in atomic_disable
  drm/vc4: hvs: Fix buffer overflow with the dlist handling
2021-02-12 11:29:06 -08:00
Linus Torvalds
e77a6817d4 tracing: Fix buffer overflow in trace event filter
It was reported that if an trace event was larger than a page
 and was filtered, that it caused memory corruption. The reason
 is that filtered events first go into a buffer to test the filter
 before being written into the ring buffer. Unfortunately,
 this write did not check the size.
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Merge tag 'trace-v5.11-rc7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace

Pull tracing fix from Steven Rostedt:
 "Fix buffer overflow in trace event filter.

  It was reported that if an trace event was larger than a page and was
  filtered, that it caused memory corruption. The reason is that
  filtered events first go into a buffer to test the filter before being
  written into the ring buffer. Unfortunately, this write did not check
  the size"

* tag 'trace-v5.11-rc7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  tracing: Check length before giving out the filter buffer
2021-02-12 11:16:17 -08:00
Linus Torvalds
2dbbaae5f7 xen: branch for v5.11-rc8
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Merge tag 'for-linus-5.11-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fix from Juergen Gross:
 "A single fix for an issue introduced this development cycle: when
  running as a Xen guest on Arm systems the kernel will hang during
  boot"

* tag 'for-linus-5.11-rc8-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  arm/xen: Don't probe xenbus as part of an early initcall
2021-02-12 11:12:58 -08:00
Linus Torvalds
f951625980 A Single RISC-V Fix for 5.11-rc8 (or 5.11)
I have a single fix this week:
 
 * The removal of the GPIO reset method for the Ethernet phy on the
   HiFive Unleashed.  This returns to relying on the bootloader's phy
   reset sequence, which we'll have to cintune doing until we can sort
   out how to get the Linux phy driver to perform the special reset
   dance required for this phy.
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Merge tag 'riscv-for-linus-5.11-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fix from Palmer Dabbelt:
 "A single fix this week: the removal of the GPIO reset method for the
  Ethernet phy on the HiFive Unleashed.

  This returns to relying on the bootloader's phy reset sequence, which
  we'll have to continue doing until we can sort out how to get the
  Linux phy driver to perform the special reset dance required for this
  phy"

* tag 'riscv-for-linus-5.11-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  Revert "dts: phy: add GPIO number and active state used for phy reset"
2021-02-12 11:07:29 -08:00
Linus Torvalds
93908500b8 Fix PTRACE_PEEKMTETAGS access to an mmapped region before the first
write.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fix from Catalin Marinas:
 "Fix PTRACE_PEEKMTETAGS access to an mmapped region before the first
  write"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: mte: Allow PTRACE_PEEKMTETAGS access to the zero page
2021-02-12 11:03:30 -08:00
Maciej Fijalkowski
c0d4e9d223 ixgbe: store the result of ixgbe_rx_offset() onto ixgbe_ring
Output of ixgbe_rx_offset() is based on ethtool's priv flag setting, which
when changed, causes PF reset (disables napi, frees irqs, loads
different Rx mem model, etc.). This means that within napi its result is
constant and there is no reason to call it per each processed frame.

Add new 'rx_offset' field to ixgbe_ring that is meant to hold the
ixgbe_rx_offset() result and use it within ixgbe_clean_rx_irq().
Furthermore, use it within ixgbe_alloc_mapped_page().

Last but not least, un-inline the function of interest as it lives in .c
file so let compiler do the decision about the inlining.

Reviewed-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-12 10:40:03 -08:00
Maciej Fijalkowski
f1b1f409bf ice: store the result of ice_rx_offset() onto ice_ring
Output of ice_rx_offset() is based on ethtool's priv flag setting, which
when changed, causes PF reset (disables napi, frees irqs, loads
different Rx mem model, etc.). This means that within napi its result is
constant and there is no reason to call it per each processed frame.

Add new 'rx_offset' field to ice_ring that is meant to hold the
ice_rx_offset() result and use it within ice_clean_rx_irq().
Furthermore, use it within ice_alloc_mapped_page().

Reviewed-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-12 10:36:57 -08:00
Maciej Fijalkowski
f7bb0d71d6 i40e: store the result of i40e_rx_offset() onto i40e_ring
Output of i40e_rx_offset() is based on ethtool's priv flag setting,
which when changed, causes PF reset (disables napi, frees irqs, loads
different Rx mem model, etc.). This means that within napi its result is
constant and there is no reason to call it per each processed frame.

Add new 'rx_offset' field to i40e_ring that is meant to hold the
i40e_rx_offset() result and use it within i40e_clean_rx_irq().
Furthermore, use it within i40e_alloc_mapped_page().

Last but not least, un-inline the function of interest so that compiler
makes the decision about inlining as it lives in .c file.

Reviewed-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-12 10:35:13 -08:00
Björn Töpel
f892a9af0c i40e: Simplify the do-while allocation loop
Fold the count decrement into the while-statement.

Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-12 10:33:42 -08:00
Maciej Fijalkowski
5c57e507f2 ice: skip NULL check against XDP prog in ZC path
Whole zero-copy variant of clean Rx IRQ is executed when xsk_pool is
attached to rx_ring and it can happen only when XDP program is present
on interface. Therefore it is safe to assume that program is always
!NULL and there is no need for checking it in ice_run_xdp_zc.

Reviewed-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-12 10:28:40 -08:00
Maciej Fijalkowski
43a925e49d ice: remove redundant checks in ice_change_mtu
dev_validate_mtu checks that mtu value specified by user is not less
than min mtu and not greater than max allowed mtu. It is being done
before calling the ndo_change_mtu exposed by driver, so remove these
redundant checks in ice_change_mtu.

Reviewed-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-12 10:20:13 -08:00
Maciej Fijalkowski
29b82f2a09 ice: move skb pointer from rx_buf to rx_ring
Similar thing has been done in i40e, as there is no real need for having
the sk_buff pointer in each rx_buf. Non-eop frames can be simply handled
on that pointer moved upwards to rx_ring.

Reviewed-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-12 10:18:40 -08:00
Maciej Fijalkowski
59c97d1b51 ice: simplify ice_run_xdp
There's no need for 'result' variable, we can directly return the
internal status based on action returned by xdp prog.

Reviewed-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-12 10:14:30 -08:00
Maciej Fijalkowski
d06e2f05b4 i40e: adjust i40e_is_non_eop
i40e_is_non_eop had a leftover comment and unused skb argument which was
used for placing the skb onto rx_buf in case when current buffer was
non-eop one. This is not relevant anymore as commit e72e56597ba1
("i40e/i40evf: Moves skb from i40e_rx_buffer to i40e_ring") pulled the
non-complete skb handling out of rx_bufs up to rx_ring.  Therefore,
let's adjust the function arguments that i40e_is_non_eop takes.

Furthermore, since there is already a function responsible for bumping
the ntc, make use of that and drop that logic from i40e_is_non_eop so
that the scope of this function is limited to what the name actually
states.

Reviewed-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-12 10:13:15 -08:00
Maciej Fijalkowski
4a14994a92 i40e: drop misleading function comments
i40e_cleanup_headers has a statement about check against skb being
linear or not which is not relevant anymore, so let's remove it.

Same case for i40e_can_reuse_rx_page, it references things that are not
present there anymore.

Reviewed-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-12 10:10:59 -08:00
Maciej Fijalkowski
99f097270a i40e: drop redundant check when setting xdp prog
Net core handles the case where netdev has no xdp prog attached and
current prog is NULL. Therefore, remove such check within
i40e_xdp_setup.

Reviewed-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2021-02-12 09:49:32 -08:00
Krzysztof Kozlowski
e1d3209f95 MAINTAINERS: cpuidle: exynos: include header in file pattern
Include the platform data header in Exynos cpuidle maintainer entry.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-02-12 18:05:59 +01:00
Catalin Marinas
68d54ceeec arm64: mte: Allow PTRACE_PEEKMTETAGS access to the zero page
The ptrace(PTRACE_PEEKMTETAGS) implementation checks whether the user
page has valid tags (mapped with PROT_MTE) by testing the PG_mte_tagged
page flag. If this bit is cleared, ptrace(PTRACE_PEEKMTETAGS) returns
-EIO.

A newly created (PROT_MTE) mapping points to the zero page which had its
tags zeroed during cpu_enable_mte(). If there were no prior writes to
this mapping, ptrace(PTRACE_PEEKMTETAGS) fails with -EIO since the zero
page does not have the PG_mte_tagged flag set.

Set PG_mte_tagged on the zero page when its tags are cleared during
boot. In addition, to avoid ptrace(PTRACE_PEEKMTETAGS) succeeding on
!PROT_MTE mappings pointing to the zero page, change the
__access_remote_tags() check to (vm_flags & VM_MTE) instead of
PG_mte_tagged.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Fixes: 34bfeea4a9e9 ("arm64: mte: Clear the tags when a page is mapped in user-space with PROT_MTE")
Cc: <stable@vger.kernel.org> # 5.10.x
Cc: Will Deacon <will@kernel.org>
Reported-by: Luis Machado <luis.machado@linaro.org>
Tested-by: Luis Machado <luis.machado@linaro.org>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lore.kernel.org/r/20210210180316.23654-1-catalin.marinas@arm.com
2021-02-12 16:08:31 +00:00
Yunfeng Ye
65348ba259 powercap: intel_rapl: Use topology interface in rapl_init_domains()
It's not a good idea to access the phys_proc_id of cpuinfo directly.

Use topology_physical_package_id(cpu) instead.

Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-02-12 16:53:01 +01:00
Yunfeng Ye
88ffce9576 powercap: intel_rapl: Use topology interface in rapl_add_package()
It's not a good idea to access phys_proc_id and cpu_die_id directly.

Use topology_physical_package_id(cpu) and topology_die_id(cpu)
instead.

Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-02-12 16:53:01 +01:00
Rikard Falkeborn
1556057413 PM: sleep: Constify static struct attribute_group
The only usage of suspend_attr_group is to put its address in an
array of pointers to const attribute_group structs.

Make it const to allow the compiler to put it into read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-02-12 16:46:59 +01:00
Lukasz Luba
c4cc3141b6 PM: Kconfig: remove unneeded "default n" options
Remove "default n" options. If the "default" line is removed, it
defaults to 'n'.

Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-02-12 16:43:23 +01:00
Lukasz Luba
3af2f0aa2e PM: EM: update Kconfig description and drop "default n" option
Energy Model supports now other devices like GPUs, DSPs, not only CPUs.
Thus, update the description in the config option. Remove also unneeded
"default n". If the "default" line is removed, it defaults to 'n'.

Signed-off-by: Lukasz Luba <lukasz.luba@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-02-12 16:43:23 +01:00
Chunfeng Yun
b5a12546e7 dt-bindings: usb: mediatek: musb: add mt8516 compatbile
Add support mt8516 compatbile

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20210201070016.41721-8-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-12 16:42:03 +01:00
Chunfeng Yun
fcad8dd5b9 dt-bindings: usb: mtk-xhci: add compatible for mt2701 and mt7623
Add two compatible for mt2701 and mt7623;

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20210201070016.41721-7-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-12 16:42:03 +01:00
Chunfeng Yun
2b9f3ed937 dt-bindings: usb: mtk-xhci: add optional assigned clock properties
Add optional property "assigned-clock" and "assigned-clock-parents"
used by mt7629.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lore.kernel.org/r/20210201070016.41721-6-chunfeng.yun@mediatek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-12 16:42:02 +01:00
Kyle Tso
4b59b60d89 Documentation: connector: Update the description of sink-vdos
Remove the acronym "VDM" and replace it with the full name "Vendor
Defined Message".

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Kyle Tso <kyletso@google.com>
Link: https://lore.kernel.org/r/20210212073743.665038-1-kyletso@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-02-12 16:36:56 +01:00
Andy Shevchenko
1de359d825 ACPI: property: Satisfy kernel doc validator (part 2)
CHECK   drivers/acpi/property.c
 warning: Function parameter or member '__fwnode' not described in 'acpi_graph_get_remote_endpoint'
 warning: Excess function parameter 'fwnode' description in 'acpi_graph_get_remote_endpoint'
 warning: Excess function parameter 'endpoint' description in 'acpi_graph_get_remote_endpoint'

Fixes: 0ef7478639c5 ("ACPI: property: Make the ACPI graph API private")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-02-12 15:34:14 +01:00
Andy Shevchenko
c82ff99eaa ACPI: property: Satisfy kernel doc validator (part 1)
CHECK   drivers/acpi/property.c
 warning: Function parameter or member 'data' not described in 'acpi_data_get_property_array'
 warning: Excess function parameter 'adev' description in 'acpi_data_get_property_array'

Fixes: 3a7a2ab839ad ("ACPI / property: Extend fwnode_property_* to data-only subnodes")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-02-12 15:34:14 +01:00
Andy Shevchenko
325aa81614 ACPI: property: Make acpi_node_prop_read() static
There is no users outside of property.c. No need to export
acpi_node_prop_read(), hence make it static.

Fixes: 3708184afc77 ("device property: Move FW type specific functionality to FW specific files")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-02-12 15:34:14 +01:00
Andy Shevchenko
38f3885edb ACPI: property: Remove dead code
After the commit 3a7a2ab839ad couple of functions became a dead code.
Moreover, for all these years nobody used them. Remove.

Fixes: 3a7a2ab839ad ("ACPI / property: Extend fwnode_property_* to data-only subnodes")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-02-12 15:34:14 +01:00