| Age | Commit message (Collapse) | Author | Files | Lines |
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When we are mapping the initial sections in head.S we
know very well where the start and end of the kernel image
in physical memory is placed. Later on it gets hard
to determine this.
Save the information into two variables named
kernel_sec_start and kernel_sec_end for convenience
for later work involving the physical start and end
of the kernel. These variables are section-aligned
corresponding to the early section mappings set up
in head.S.
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Russell King <[email protected]>
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We want to be able to compile the kernel into an address different
from PAGE_OFFSET (start of lowmem) + TEXT_OFFSET, so start to pry
apart the address of where the kernel is located from the address
where the lowmem is located by defining and using KERNEL_OFFSET in
a few key places.
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Russell King <[email protected]>
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There's a few instructions that GAS infers operands but Clang doesn't;
from what I can tell the Arm ARM doesn't say these are optional.
F5.1.257 TBB, TBH T1 Halfword variant
F5.1.238 STREXD T1 variant
F5.1.84 LDREXD T1 variant
Link: https://github.com/ClangBuiltLinux/linux/issues/1309
Signed-off-by: Nick Desaulniers <[email protected]>
Reviewed-by: Jian Cai <[email protected]>
Signed-off-by: Russell King <[email protected]>
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Use pattern rules to unify similar build rules between OABI and EABI.
Signed-off-by: Masahiro Yamada <[email protected]>
Signed-off-by: Russell King <[email protected]>
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You do not need to pass the abi parameter to syscallnr.sh because it
parses all the lines of syscall.tbl except comments anyway.
Simplify the code. Also, remove unneeded single-quoting.
Signed-off-by: Masahiro Yamada <[email protected]>
Signed-off-by: Russell King <[email protected]>
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The directory of mach-types.h is created a couple of lines above:
_dummy := $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)') \
The 'mkdir -p' command is redundant.
scripts/Kbuild.include defines real-prereqs as a shorthand for
$(filter-out $(PHONY),$^). Let's use it to simplify the code.
Signed-off-by: Masahiro Yamada <[email protected]>
Signed-off-by: Russell King <[email protected]>
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Fix a capitalization typo.
Signed-off-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Russell King <[email protected]>
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In some configurations when building with gcc-11, prepare_page_table
does not get inline, which causes a build time warning for a section
mismatch:
WARNING: modpost: vmlinux.o(.text.unlikely+0xce8): Section mismatch in reference from the function prepare_page_table() to the (unknown reference) .init.data:(unknown)
The function prepare_page_table() references
the (unknown reference) __initdata (unknown).
This is often because prepare_page_table lacks a __initdata
annotation or the annotation of (unknown) is wrong.
Mark the function as __init to avoid the warning regardless of the
inlining, and remove the 'inline' keyword. The compiler is
free to ignore the 'inline' here and it doesn't result in better
object code or more readable source.
Signed-off-by: Arnd Bergmann <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Russell King <[email protected]>
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Teach ftrace_make_call() and ftrace_make_nop() about PLTs.
Teach PLT code about FTRACE and all its callbacks.
Otherwise the following might happen:
------------[ cut here ]------------
WARNING: CPU: 14 PID: 2265 at .../arch/arm/kernel/insn.c:14 __arm_gen_branch+0x83/0x8c()
...
Hardware name: LSI Axxia AXM55XX
[<c0314a49>] (unwind_backtrace) from [<c03115e9>] (show_stack+0x11/0x14)
[<c03115e9>] (show_stack) from [<c0519f51>] (dump_stack+0x81/0xa8)
[<c0519f51>] (dump_stack) from [<c032185d>] (warn_slowpath_common+0x69/0x90)
[<c032185d>] (warn_slowpath_common) from [<c03218f3>] (warn_slowpath_null+0x17/0x1c)
[<c03218f3>] (warn_slowpath_null) from [<c03143cf>] (__arm_gen_branch+0x83/0x8c)
[<c03143cf>] (__arm_gen_branch) from [<c0314337>] (ftrace_make_nop+0xf/0x24)
[<c0314337>] (ftrace_make_nop) from [<c038ebcb>] (ftrace_process_locs+0x27b/0x3e8)
[<c038ebcb>] (ftrace_process_locs) from [<c0378d79>] (load_module+0x11e9/0x1a44)
[<c0378d79>] (load_module) from [<c037974d>] (SyS_finit_module+0x59/0x84)
[<c037974d>] (SyS_finit_module) from [<c030e981>] (ret_fast_syscall+0x1/0x18)
---[ end trace e1b64ced7a89adcc ]---
------------[ cut here ]------------
WARNING: CPU: 14 PID: 2265 at .../kernel/trace/ftrace.c:1979 ftrace_bug+0x1b1/0x234()
...
Hardware name: LSI Axxia AXM55XX
[<c0314a49>] (unwind_backtrace) from [<c03115e9>] (show_stack+0x11/0x14)
[<c03115e9>] (show_stack) from [<c0519f51>] (dump_stack+0x81/0xa8)
[<c0519f51>] (dump_stack) from [<c032185d>] (warn_slowpath_common+0x69/0x90)
[<c032185d>] (warn_slowpath_common) from [<c03218f3>] (warn_slowpath_null+0x17/0x1c)
[<c03218f3>] (warn_slowpath_null) from [<c038e87d>] (ftrace_bug+0x1b1/0x234)
[<c038e87d>] (ftrace_bug) from [<c038ebd5>] (ftrace_process_locs+0x285/0x3e8)
[<c038ebd5>] (ftrace_process_locs) from [<c0378d79>] (load_module+0x11e9/0x1a44)
[<c0378d79>] (load_module) from [<c037974d>] (SyS_finit_module+0x59/0x84)
[<c037974d>] (SyS_finit_module) from [<c030e981>] (ret_fast_syscall+0x1/0x18)
---[ end trace e1b64ced7a89adcd ]---
ftrace failed to modify [<e9ef7006>] 0xe9ef7006
actual: 02:f0:3b:fa
ftrace record flags: 0
(0) expected tramp: c0314265
Signed-off-by: Alexander Sverdlin <[email protected]>
Signed-off-by: Russell King <[email protected]>
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Will be used in the following patch. No functional change.
Signed-off-by: Alexander Sverdlin <[email protected]>
Signed-off-by: Russell King <[email protected]>
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No functional change, later it will be re-used in several files.
Signed-off-by: Alexander Sverdlin <[email protected]>
Signed-off-by: Russell King <[email protected]>
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Kbuild cleans up files listed in 'targets'.
'piggy_data' is already added to 'targets' a few lines above.
Adding it to 'clean-files' is redundant.
Signed-off-by: Masahiro Yamada <[email protected]>
Signed-off-by: Russell King <[email protected]>
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When linking aspeed_g5_defconfig with ld.lld 10.0.1, the following error
occurs:
ld.lld: error: .tmp_vmlinux.kallsyms1:(.ARM.exidx+0x34D98): relocation
R_ARM_PREL31 out of range: 2135538592 is not in [-1073741824,
1073741823]
This was resolved in ld.lld 11.0.0 but the minimum supported version of
ld.lld for the kernel is 10.0.1. Prevent CONFIG_UNWINDER_ARM from being
selected in this case so that the problematic sections cannot be
created.
Link: https://github.com/ClangBuiltLinux/linux/issues/732
Link: https://github.com/llvm/llvm-project/commit/48aebfc908ba7b9372aaa478a9c200789491096e
Suggested-by: Nick Desaulniers <[email protected]>
Signed-off-by: Nathan Chancellor <[email protected]>
Reviewed-by: Nick Desaulniers <[email protected]>
Signed-off-by: Russell King <[email protected]>
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Rather than using "m" (which is the unit of metres, or milli), and
"MB" in the printk statements, use MiB to make it clear that we are
talking about the power-of-2 megabytes, aka mebibytes.
Reviewed-by: Linus Walleij <[email protected]>
Reviewed-by: Yanfei Xu <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>
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Make the default vmalloc size clearer by using a more natural
multiplication by SZ_1M rather than a shift left by 20 bits.
Reviewed-by: Linus Walleij <[email protected]>
Reviewed-by: Yanfei Xu <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>
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Rather than storing the start of vmalloc space, store the size, and
move the calculation into adjust_lowmem_limit(). We now have one single
place where this calculation takes place.
Reviewed-by: Linus Walleij <[email protected]>
Reviewed-by: Yanfei Xu <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>
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Change the current vmalloc_min, which is supposed to be the lowest
address of vmalloc space including the VMALLOC_OFFSET, to vmalloc_start
which does not include VMALLOC_OFFSET.
Reviewed-by: Linus Walleij <[email protected]>
Reviewed-by: Yanfei Xu <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>
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We calculate the maximum size of the vmalloc space twice in
early_vmalloc(). Use a temporary variable to hold this value.
Reviewed-by: Linus Walleij <[email protected]>
Reviewed-by: Yanfei Xu <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>
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vmalloc_min is currently a void pointer, but everywhere its used
contains a cast - either to a void pointer when setting or back to
an integer type when being used. Eliminate these casts by changing
its type to unsigned long.
Reviewed-by: Linus Walleij <[email protected]>
Reviewed-by: Yanfei Xu <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>
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Swap entries use a faulting PTE which have the least two significant
bits as zero. Due to this, the use of PTE_TYPE_FAULT was overlooked,
but really should have been included in __swp_entry_to_pte().
Convert this macro to use PTE_TYPE_FAULT to properly document what is
going on here, and use __pte() to convert the swp_entry_t to a pte_t.
This results in no change to the resulting kernel image.
Reviewed-by: Anshuman Khandual <[email protected]>
Signed-off-by: Russell King (Oracle) <[email protected]>
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Commit b9d79e4ca4ff ("fbmem: Mark proc_fb_seq_ops as __maybe_unused")
places the '__maybe_unused' in an entirely incorrect location between
the "struct" keyword and the structure name.
It's a wonder that gcc accepts that silently, but clang quite reasonably
warns about it:
drivers/video/fbdev/core/fbmem.c:736:21: warning: attribute declaration must precede definition [-Wignored-attributes]
static const struct __maybe_unused seq_operations proc_fb_seq_ops = {
^
Fix it.
Cc: Guenter Roeck <[email protected]>
Cc: Daniel Vetter <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Pull drm fixes from Dave Airlie:
"Bit later than usual, I queued them all up on Friday then promptly
forgot to write the pull request email. This is mainly amdgpu fixes,
with some radeon/msm/fbdev and one i915 gvt fix thrown in.
amdgpu:
- MPO hang workaround
- Fix for concurrent VM flushes on vega/navi
- dcefclk is not adjustable on navi1x and newer
- MST HPD debugfs fix
- Suspend/resumes fixes
- Register VGA clients late in case driver fails to load
- Fix GEM leak in user framebuffer create
- Add support for polaris12 with 32 bit memory interface
- Fix duplicate cursor issue when using overlay
- Fix corruption with tiled surfaces on VCN3
- Add BO size and stride check to fix BO size verification
radeon:
- Fix off-by-one in power state parsing
- Fix possible memory leak in power state parsing
msm:
- NULL ptr dereference fix
fbdev:
- procfs disabled warning fix
i915:
- gvt: Fix a possible division by zero in vgpu display rate
calculation"
* tag 'drm-next-2021-05-10' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu: Use device specific BO size & stride check.
drm/amdgpu: Init GFX10_ADDR_CONFIG for VCN v3 in DPG mode.
drm/amd/pm: initialize variable
drm/radeon: Avoid power table parsing memory leaks
drm/radeon: Fix off-by-one power_state index heap overwrite
drm/amd/display: Fix two cursor duplication when using overlay
drm/amdgpu: add new MC firmware for Polaris12 32bit ASIC
fbmem: Mark proc_fb_seq_ops as __maybe_unused
drm/msm/dpu: Delete bonkers code
drm/i915/gvt: Prevent divided by zero when calculating refresh rate
amdgpu: fix GEM obj leak in amdgpu_display_user_framebuffer_create
drm/amdgpu: Register VGA clients after init can no longer fail
drm/amdgpu: Handling of amdgpu_device_resume return value for graceful teardown
drm/amdgpu: fix r initial values
drm/amd/display: fix wrong statement in mst hpd debugfs
amdgpu/pm: set pp_dpm_dcefclk to readonly on NAVI10 and newer gpus
amdgpu/pm: Prevent force of DCEFCLK on NAVI10 and SIENNA_CICHLID
drm/amdgpu: fix concurrent VM flushes on Vega/Navi v2
drm/amd/display: Reject non-zero src_y and src_x for video planes
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Pull block fix from Jens Axboe:
"Turns out the bio max size change still has issues, so let's get it
reverted for 5.13-rc1. We'll shake out the issues there and defer it
to 5.14 instead"
* tag 'block-5.13-2021-05-09' of git://git.kernel.dk/linux-block:
Revert "bio: limit bio max size"
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Pull cifs fixes from Steve French:
"Three small SMB3 chmultichannel related changesets (also for stable)
from the SMB3 test event this week.
The other fixes are still in review/testing"
* tag '5.13-rc-smb3-part3' of git://git.samba.org/sfrench/cifs-2.6:
smb3: if max_channels set to more than one channel request multichannel
smb3: do not attempt multichannel to server which does not support it
smb3: when mounting with multichannel include it in requested capabilities
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"A set of scheduler updates:
- Prevent PSI state corruption when schedule() races with cgroup
move.
A recent commit combined two PSI callbacks to reduce the number of
cgroup tree updates, but missed that schedule() can drop rq::lock
for load balancing, which opens the race window for
cgroup_move_task() which then observes half updated state.
The fix is to solely use task::ps_flags instead of looking at the
potentially mismatching scheduler state
- Prevent an out-of-bounds access in uclamp caused bu a rounding
division which can lead to an off-by-one error exceeding the
buckets array size.
- Prevent unfairness caused by missing load decay when a task is
attached to a cfs runqueue.
The old load of the task was attached to the runqueue and never
removed. Fix it by enforcing the load update through the hierarchy
for unthrottled run queue instances.
- A documentation fix fot the 'sched_verbose' command line option"
* tag 'sched-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix unfairness caused by missing load decay
sched: Fix out-of-bound access in uclamp
psi: Fix psi state corruption when schedule() races with cgroup move
sched,doc: sched_debug_verbose cmdline should be sched_verbose
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
"A set of locking related fixes and updates:
- Two fixes for the futex syscall related to the timeout handling.
FUTEX_LOCK_PI does not support the FUTEX_CLOCK_REALTIME bit and
because it's not set the time namespace adjustment for clock
MONOTONIC is applied wrongly.
FUTEX_WAIT cannot support the FUTEX_CLOCK_REALTIME bit because its
always a relative timeout.
- Cleanups in the futex syscall entry points which became obvious
when the two timeout handling bugs were fixed.
- Cleanup of queued_write_lock_slowpath() as suggested by Linus
- Fixup of the smp_call_function_single_async() prototype"
* tag 'locking-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
futex: Make syscall entry points less convoluted
futex: Get rid of the val2 conditional dance
futex: Do not apply time namespace adjustment on FUTEX_LOCK_PI
Revert 337f13046ff0 ("futex: Allow FUTEX_CLOCK_REALTIME with FUTEX_WAIT op")
locking/qrwlock: Cleanup queued_write_lock_slowpath()
smp: Fix smp_call_function_single_async prototype
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 perf fix from Borislav Petkov:
"Handle power-gating of AMD IOMMU perf counters properly when they are
used"
* tag 'perf_urgent_for_v5.13_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/events/amd/iommu: Fix invalid Perf result due to IOMMU PMC power-gating
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Borislav Petkov:
"A bunch of things accumulated for x86 in the last two weeks:
- Fix guest vtime accounting so that ticks happening while the guest
is running can also be accounted to it. Along with a consolidation
to the guest-specific context tracking helpers.
- Provide for the host NMI handler running after a VMX VMEXIT to be
able to run on the kernel stack correctly.
- Initialize MSR_TSC_AUX when RDPID is supported and not RDTSCP (virt
relevant - real hw supports both)
- A code generation improvement to TASK_SIZE_MAX through the use of
alternatives
- The usual misc and related cleanups and improvements"
* tag 'x86_urgent_for_v5.13_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
KVM: x86: Consolidate guest enter/exit logic to common helpers
context_tracking: KVM: Move guest enter/exit wrappers to KVM's domain
context_tracking: Consolidate guest enter/exit wrappers
sched/vtime: Move guest enter/exit vtime accounting to vtime.h
sched/vtime: Move vtime accounting external declarations above inlines
KVM: x86: Defer vtime accounting 'til after IRQ handling
context_tracking: Move guest exit vtime accounting to separate helpers
context_tracking: Move guest exit context tracking to separate helpers
KVM/VMX: Invoke NMI non-IST entry instead of IST entry
x86/cpu: Remove write_tsc() and write_rdtscp_aux() wrappers
x86/cpu: Initialize MSR_TSC_AUX if RDTSCP *or* RDPID is supported
x86/resctrl: Fix init const confusion
x86: Delete UD0, UD1 traces
x86/smpboot: Remove duplicate includes
x86/cpu: Use alternative to generate the TASK_SIZE_MAX constant
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This reverts commit cd2c7545ae1beac3b6aae033c7f31193b3255946.
Alex reports that the commit causes corruption with LUKS on ext4. Revert
it for now so that this can be investigated properly.
Link: https://lore.kernel.org/linux-block/1620493841.bxdq8r5haw.none@localhost/
Reported-by: Alex Xu (Hello71) <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- A fix to avoid over-allocating the kernel's mapping on !MMU systems,
which could lead to up to 2MiB of lost memory
- The SiFive address extension errata only manifest on rv64, they are
now disabled on rv32 where they are unnecessary
- A pair of late-landing cleanups
* tag 'riscv-for-linus-5.13-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: remove unused handle_exception symbol
riscv: Consistify protect_kernel_linear_mapping_text_rodata() use
riscv: enable SiFive errata CIP-453 and CIP-1200 Kconfig only if CONFIG_64BIT=y
riscv: Only extend kernel reservation if mapped read-only
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intel_dp_check_mst_status() uses a 14-byte array to read the DPRX Event
Status Indicator data, but then passes that buffer at offset 10 off as
an argument to drm_dp_channel_eq_ok().
End result: there are only 4 bytes remaining of the buffer, yet
drm_dp_channel_eq_ok() wants a 6-byte buffer. gcc-11 correctly warns
about this case:
drivers/gpu/drm/i915/display/intel_dp.c: In function ‘intel_dp_check_mst_status’:
drivers/gpu/drm/i915/display/intel_dp.c:3491:22: warning: ‘drm_dp_channel_eq_ok’ reading 6 bytes from a region of size 4 [-Wstringop-overread]
3491 | !drm_dp_channel_eq_ok(&esi[10], intel_dp->lane_count)) {
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/i915/display/intel_dp.c:3491:22: note: referencing argument 1 of type ‘const u8 *’ {aka ‘const unsigned char *’}
In file included from drivers/gpu/drm/i915/display/intel_dp.c:38:
include/drm/drm_dp_helper.h:1466:6: note: in a call to function ‘drm_dp_channel_eq_ok’
1466 | bool drm_dp_channel_eq_ok(const u8 link_status[DP_LINK_STATUS_SIZE],
| ^~~~~~~~~~~~~~~~~~~~
6:14 elapsed
This commit just extends the original array by 2 zero-initialized bytes,
avoiding the warning.
There may be some underlying bug in here that caused this confusion, but
this is at least no worse than the existing situation that could use
random data off the stack.
Cc: Jani Nikula <[email protected]>
Cc: Ville Syrjälä <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: Rodrigo Vivi <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: Dave Airlie <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Pull more SCSI updates from James Bottomley:
"This is a set of minor fixes in various drivers (qla2xxx, ufs,
scsi_debug, lpfc) one doc fix and a fairly large update to the fnic
driver to remove the open coded iteration functions in favour of the
scsi provided ones"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: fnic: Use scsi_host_busy_iter() to traverse commands
scsi: fnic: Kill 'exclude_id' argument to fnic_cleanup_io()
scsi: scsi_debug: Fix cmd_per_lun, set to max_queue
scsi: ufs: core: Narrow down fast path in system suspend path
scsi: ufs: core: Cancel rpm_dev_flush_recheck_work during system suspend
scsi: ufs: core: Do not put UFS power into LPM if link is broken
scsi: qla2xxx: Prevent PRLI in target mode
scsi: qla2xxx: Add marginal path handling support
scsi: target: tcmu: Return from tcmu_handle_completions() if cmd_id not found
scsi: ufs: core: Fix a typo in ufs-sysfs.c
scsi: lpfc: Fix bad memory access during VPD DUMP mailbox command
scsi: lpfc: Fix DMA virtual address ptr assignment in bsg
scsi: lpfc: Fix illegal memory access on Abort IOCBs
scsi: blk-mq: Fix build warning when making htmldocs
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git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- Convert sh and sparc to use generic shell scripts to generate the
syscall headers
- refactor .gitignore files
- Update kernel/config_data.gz only when the content of the .config
is really changed, which avoids the unneeded re-link of vmlinux
- move "remove stale files" workarounds to scripts/remove-stale-files
- suppress unused-but-set-variable warnings by default for Clang
as well
- fix locale setting LANG=C to LC_ALL=C
- improve 'make distclean'
- always keep intermediate objects from scripts/link-vmlinux.sh
- move IF_ENABLED out of <linux/kconfig.h> to make it self-contained
- misc cleanups
* tag 'kbuild-v5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (25 commits)
linux/kconfig.h: replace IF_ENABLED() with PTR_IF() in <linux/kernel.h>
kbuild: Don't remove link-vmlinux temporary files on exit/signal
kbuild: remove the unneeded comments for external module builds
kbuild: make distclean remove tag files in sub-directories
kbuild: make distclean work against $(objtree) instead of $(srctree)
kbuild: refactor modname-multi by using suffix-search
kbuild: refactor fdtoverlay rule
kbuild: parameterize the .o part of suffix-search
arch: use cross_compiling to check whether it is a cross build or not
kbuild: remove ARCH=sh64 support from top Makefile
.gitignore: prefix local generated files with a slash
kbuild: replace LANG=C with LC_ALL=C
Makefile: Move -Wno-unused-but-set-variable out of GCC only block
kbuild: add a script to remove stale generated files
kbuild: update config_data.gz only when the content of .config is changed
.gitignore: ignore only top-level modules.builtin
.gitignore: move tags and TAGS close to other tag files
kernel/.gitgnore: remove stale timeconst.h and hz.bc
usr/include: refactor .gitignore
genksyms: fix stale comment
...
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Mounting with "multichannel" is obviously implied if user requested
more than one channel on mount (ie mount parm max_channels>1).
Currently both have to be specified. Fix that so that if max_channels
is greater than 1 on mount, enable multichannel rather than silently
falling back to non-multichannel.
Signed-off-by: Steve French <[email protected]>
Reviewed-By: Tom Talpey <[email protected]>
Cc: <[email protected]> # v5.11+
Reviewed-by: Shyam Prasad N <[email protected]>
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We were ignoring CAP_MULTI_CHANNEL in the server response - if the
server doesn't support multichannel we should not be attempting it.
See MS-SMB2 section 3.2.5.2
Reviewed-by: Shyam Prasad N <[email protected]>
Reviewed-By: Tom Talpey <[email protected]>
Cc: <[email protected]> # v5.8+
Signed-off-by: Steve French <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates and fixes from Michael Ellerman:
"A bit of a mixture of things, tying up some loose ends.
There's the removal of the nvlink code, which dependend on a commit in
the vfio tree. Then the enablement of huge vmalloc which was in next
for a few weeks but got dropped due to conflicts. And there's also a
few fixes.
Summary:
- Remove the nvlink support now that it's only user has been removed.
- Enable huge vmalloc mappings for Radix MMU (P9).
- Fix KVM conversion to gfn-based MMU notifier callbacks.
- Fix a kexec/kdump crash with hot plugged CPUs.
- Fix boot failure on 32-bit with CONFIG_STACKPROTECTOR.
- Restore alphabetic order of the selects under CONFIG_PPC.
Thanks to: Christophe Leroy, Christoph Hellwig, Nicholas Piggin,
Sandipan Das, and Sourabh Jain"
* tag 'powerpc-5.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
KVM: PPC: Book3S HV: Fix conversion to gfn-based MMU notifier callbacks
powerpc/kconfig: Restore alphabetic order of the selects under CONFIG_PPC
powerpc/32: Fix boot failure with CONFIG_STACKPROTECTOR
powerpc/powernv/memtrace: Fix dcache flushing
powerpc/kexec_file: Use current CPU info while setting up FDT
powerpc/64s/radix: Enable huge vmalloc mappings
powerpc/powernv: remove the nvlink support
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In the SMB3/SMB3.1.1 negotiate protocol request, we are supposed to
advertise CAP_MULTICHANNEL capability when establishing multiple
channels has been requested by the user doing the mount. See MS-SMB2
sections 2.2.3 and 3.2.5.2
Without setting it there is some risk that multichannel could fail
if the server interpreted the field strictly.
Reviewed-By: Tom Talpey <[email protected]>
Reviewed-by: Shyam Prasad N <[email protected]>
Cc: <[email protected]> # v5.8+
Signed-off-by: Steve French <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.13-rc1, including fixes from bpf, can and
netfilter trees. Self-contained fixes, nothing risky.
Current release - new code bugs:
- dsa: ksz: fix a few bugs found by static-checker in the new driver
- stmmac: fix frame preemption handshake not triggering after
interface restart
Previous releases - regressions:
- make nla_strcmp handle more then one trailing null character
- fix stack OOB reads while fragmenting IPv4 packets in openvswitch
and net/sched
- sctp: do asoc update earlier in sctp_sf_do_dupcook_a
- sctp: delay auto_asconf init until binding the first addr
- stmmac: clear receive all(RA) bit when promiscuous mode is off
- can: mcp251x: fix resume from sleep before interface was brought up
Previous releases - always broken:
- bpf: fix leakage of uninitialized bpf stack under speculation
- bpf: fix masking negation logic upon negative dst register
- netfilter: don't assume that skb_header_pointer() will never fail
- only allow init netns to set default tcp cong to a restricted algo
- xsk: fix xp_aligned_validate_desc() when len == chunk_size to avoid
false positive errors
- ethtool: fix missing NLM_F_MULTI flag when dumping
- can: m_can: m_can_tx_work_queue(): fix tx_skb race condition
- sctp: fix a SCTP_MIB_CURRESTAB leak in sctp_sf_do_dupcook_b
- bridge: fix NULL-deref caused by a races between assigning
rx_handler_data and setting the IFF_BRIDGE_PORT bit
Latecomer:
- seg6: add counters support for SRv6 Behaviors"
* tag 'net-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (73 commits)
atm: firestream: Use fallthrough pseudo-keyword
net: stmmac: Do not enable RX FIFO overflow interrupts
mptcp: fix splat when closing unaccepted socket
i40e: Remove LLDP frame filters
i40e: Fix PHY type identifiers for 2.5G and 5G adapters
i40e: fix the restart auto-negotiation after FEC modified
i40e: Fix use-after-free in i40e_client_subtask()
i40e: fix broken XDP support
netfilter: nftables: avoid potential overflows on 32bit arches
netfilter: nftables: avoid overflows in nft_hash_buckets()
tcp: Specify cmsgbuf is user pointer for receive zerocopy.
mlxsw: spectrum_mr: Update egress RIF list before route's action
net: ipa: fix inter-EE IRQ register definitions
can: m_can: m_can_tx_work_queue(): fix tx_skb race condition
can: mcp251x: fix resume from sleep before interface was brought up
can: mcp251xfd: mcp251xfd_probe(): add missing can_rx_offload_del() in error path
can: mcp251xfd: mcp251xfd_probe(): fix an error pointer dereference in probe
netfilter: nftables: Fix a memleak from userdata error path in new objects
netfilter: remove BUG_ON() after skb_header_pointer()
netfilter: nfnetlink_osf: Fix a missing skb_header_pointer() NULL check
...
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<linux/kconfig.h> is included from all the kernel-space source files,
including C, assembly, linker scripts. It is intended to contain a
minimal set of macros to evaluate CONFIG options.
IF_ENABLED() is an intruder here because (x ? y : z) is C code, which
should not be included from assembly files or linker scripts.
Also, <linux/kconfig.h> is no longer self-contained because NULL is
defined in <linux/stddef.h>.
Move IF_ENABLED() out to <linux/kernel.h> as PTR_IF(). PTF_IF()
takes the general boolean expression instead of a CONFIG option
so that it fits better in <linux/kernel.h>.
Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
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Merge master back into next, this allows us to resolve some conflicts in
arch/powerpc/Kconfig, and also re-sort the symbols under config PPC so
that they are in alphabetical order again.
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
1) Add SECMARK revision 1 to fix incorrect layout that prevents
from remove rule with this target, from Phil Sutter.
2) Fix pernet exit path spat in arptables, from Florian Westphal.
3) Missing rcu_read_unlock() for unknown nfnetlink callbacks,
reported by syzbot, from Eric Dumazet.
4) Missing check for skb_header_pointer() NULL pointer in
nfnetlink_osf.
5) Remove BUG_ON() after skb_header_pointer() from packet path
in several conntrack helper and the TCP tracker.
6) Fix memleak in the new object error path of userdata.
7) Avoid overflows in nft_hash_buckets(), reported by syzbot,
also from Eric.
8) Avoid overflows in 32bit arches, from Eric.
* git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf:
netfilter: nftables: avoid potential overflows on 32bit arches
netfilter: nftables: avoid overflows in nft_hash_buckets()
netfilter: nftables: Fix a memleak from userdata error path in new objects
netfilter: remove BUG_ON() after skb_header_pointer()
netfilter: nfnetlink_osf: Fix a missing skb_header_pointer() NULL check
netfilter: nfnetlink: add a missing rcu_read_unlock()
netfilter: arptables: use pernet ops struct during unregister
netfilter: xt_SECMARK: add new revision to fix structure layout
====================
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue
Nguyen, Anthony L says:
====================
Intel Wired LAN Driver Updates 2021-05-07
This series contains updates to i40e driver only.
Magnus fixes XDP by adding and correcting checks that were caused by a
previous commit which introduced a new variable but did not account for
it in all paths.
Yunjian Wang adds a return in an error path to prevent reading a freed
pointer.
Jaroslaw forces link reset when changing FEC so that changes take
affect.
Mateusz fixes PHY types for 2.5G and 5G as there is a differentiation on
PHY identifiers based on operation.
Arkadiusz removes filtering of LLDP frames for software DCB as this is
preventing them from being properly transmitted.
* '40GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
i40e: Remove LLDP frame filters
i40e: Fix PHY type identifiers for 2.5G and 5G adapters
i40e: fix the restart auto-negotiation after FEC modified
i40e: Fix use-after-free in i40e_client_subtask()
i40e: fix broken XDP support
====================
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Add pseudo-keyword macro fallthrough[1]
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through
Signed-off-by: Wei Ming Chen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The RX FIFO overflows when the system is not able to process all received
packets and they start accumulating (first in the DMA queue in memory,
then in the FIFO). An interrupt is then raised for each overflowing packet
and handled in stmmac_interrupt(). This is counter-productive, since it
brings the system (or more likely, one CPU core) to its knees to process
the FIFO overflow interrupts.
stmmac_interrupt() handles overflow interrupts by writing the rx tail ptr
into the corresponding hardware register (according to the MAC spec, this
has the effect of restarting the MAC DMA). However, without freeing any rx
descriptors, the DMA stops right away, and another overflow interrupt is
raised as the FIFO overflows again. Since the DMA is already restarted at
the end of stmmac_rx_refill() after freeing descriptors, disabling FIFO
overflow interrupts and the corresponding handling code has no side effect,
and eliminates the interrupt storm when the RX FIFO overflows.
Signed-off-by: Yannick Vignon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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If userspace exits before calling accept() on a listener that had at least
one new connection ready, we get:
Attempt to release TCP socket in state 8
This happens because the mptcp socket gets cloned when the TCP connection
is ready, but the socket is never exposed to userspace.
The client additionally sends a DATA_FIN, which brings connection into
CLOSE_WAIT state. This in turn prevents the orphan+state reset fixup
in mptcp_sock_destruct() from doing its job.
Fixes: 3721b9b64676b ("mptcp: Track received DATA_FIN sequence number and add related helpers")
Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/185
Tested-by: Florian Westphal <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
Signed-off-by: Mat Martineau <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Benson Leung:
"cros_ec_typec:
- Changes around DP mode check, hard reset, tracking port change.
cros_ec misc:
- wilco_ec: Convert stream-like files from nonseekable to stream open
- cros_usbpd_notify: Listen to EC_HSOT_EVENT_USB_MUX host event
- fix format warning in cros_ec_typec"
* tag 'tag-chrome-platform-for-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: cros_ec_lpc: Use DEFINE_MUTEX() for mutex lock
platform/chrome: cros_usbpd_notify: Listen to EC_HOST_EVENT_USB_MUX host event
platform/chrome: cros_ec_typec: Add DP mode check
platform/chrome: cros_ec_typec: Handle hard reset
platform/chrome: cros_ec: Add Type C hard reset
platform/chrome: cros_ec_typec: Track port role
platform/chrome: cros_ec_typec: fix clang -Wformat warning
platform/chrome: cros_ec_typec: Check for device within remove function
platform/chrome: wilco_ec: convert stream-like files from nonseekable_open -> stream_open
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git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Pull i3cupdates from Alexandre Belloni:
"Fix i3c_master_register error path"
* tag 'i3c/for-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
Revert "i3c master: fix missing destroy_workqueue() on error in i3c_master_register"
dt-bindings: i3c: Fix silvaco,i3c-master-v1 compatible string
i3c: master: svc: remove redundant assignment to cmd->read_len
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull more arm64 updates from Catalin Marinas:
"A mix of fixes and clean-ups that turned up too late for the first
pull request:
- Restore terminal stack frame records. Their previous removal caused
traces which cross secondary_start_kernel to terminate one entry
too late, with a spurious "0" entry.
- Fix boot warning with pseudo-NMI due to the way we manipulate the
PMR register.
- ACPI fixes: avoid corruption of interrupt mappings on watchdog
probe failure (GTDT), prevent unregistering of GIC SGIs.
- Force SPARSEMEM_VMEMMAP as the only memory model, it saves with
having to test all the other combinations.
- Documentation fixes and updates: tagged address ABI exceptions on
brk/mmap/mremap(), event stream frequency, update booting
requirements on the configuration of traps"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: kernel: Update the stale comment
arm64: Fix the documented event stream frequency
arm64: entry: always set GIC_PRIO_PSR_I_SET during entry
arm64: Explicitly document boot requirements for SVE
arm64: Explicitly require that FPSIMD instructions do not trap
arm64: Relax booting requirements for configuration of traps
arm64: cpufeatures: use min and max
arm64: stacktrace: restore terminal records
arm64/vdso: Discard .note.gnu.property sections in vDSO
arm64: doc: Add brk/mmap/mremap() to the Tagged Address ABI Exceptions
psci: Remove unneeded semicolon
ACPI: irq: Prevent unregistering of GIC SGIs
ACPI: GTDT: Don't corrupt interrupt mappings on watchdow probe failure
arm64: Show three registers per line
arm64: remove HAVE_DEBUG_BUGVERBOSE
arm64: alternative: simplify passing alt_region
arm64: Force SPARSEMEM_VMEMMAP as the only memory management model
arm64: vdso32: drop -no-integrated-as flag
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Just a few device-specific HD-audio and USB-audio fixes"
* tag 'sound-fix-5.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda: generic: change the DAC ctl name for LO+SPK or LO+HP
ALSA: hda/realtek: Add fixup for HP OMEN laptop
ALSA: hda/realtek: Fix speaker amp on HP Envy AiO 32
ALSA: hda/realtek: Fix silent headphone output on ASUS UX430UA
ALSA: usb-audio: Add dB range mapping for Sennheiser Communications Headset PC 8
ALSA: hda/realtek: ALC285 Thinkpad jack pin quirk is unreachable
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