On Tue, Apr 28, 2020 at 06:24:21PM -0700, Minchan Kim wrote:
> Hello,
>
> On Tue, Apr 28, 2020 at 12:04:59PM -0700, Nathan Chancellor wrote:
> > On Tue, Apr 28, 2020 at 06:10:06PM +1000, Stephen Rothwell wrote:
> > > Hi all,
> > >
> > > Changes since
On Tue, Apr 28, 2020 at 03:54:01PM -0700, Fangrui Song wrote:
>
> On 2020-04-28, Nathan Chancellor wrote:
> > Currently, the VDSO is being linked through $(CC). This does not match
> > how the rest of the kernel links objects, which is through the $(LD)
> > variable.
>
/mips/vdso/elf.o: endianness incompatible with that
of the selected emulation
mips64-linux-ld: failed to merge target specific data of file
arch/mips/vdso/elf.o
...
Remove this legacy hack and just use '-EB' and '-EL' unconditionally.
Reported-by: Thomas Bogendoerfer
Signed-off-by: Nathan
MIPS VDSO binutils
warning and linking the VDSO when LD is ld.lld. Wrapping the call to
ld-ifversion with CONFIG_LD_IS_LLD does not work because the config
values are wiped away during 'make clean'.
Signed-off-by: Nathan Chancellor
---
v3 -> v4:
* No changes.
v2 -> v3:
* Fix CONFIG macro i
-by: Masahiro Yamada
[nc: Reword commit message]
Signed-off-by: Nathan Chancellor
---
v3 -> v4:
* No changes.
v2 -> v3:
* Add Masahiro's ack.
v1 -> v2:
* No changes.
Sami, please scream if you are unhappy with how I worded this commit.
init/Kconfig | 3 +++
1 file changed, 3 insertions(+)
d
vdso.so.dbg | sed 's/(.*//'
String dump of section '.comment':
[ 0] Linker: LLD 11.0.0
[62] ClangBuiltLinux clang version 11.0.0
Link: https://github.com/ClangBuiltLinux/linux/issues/785
Signed-off-by: Nathan Chancellor
---
v3 -> v4:
* Improve commit message to show that ld command is effectivel
Hi all,
This series allows ld.lld to properly and completely link the MIPS vDSO.
Patch 1 adds ld.lld support to Kconfig so that we can avoid certain
ld.bfd checks.
Patch 2 moves disabling of the VDSO to Kconfig. This allows us to avoid
a warning with LD=ld.lld during the clean phase, when we do
C32 _start
Reported-by: Dmitry Golovin
Signed-off-by: Nathan Chancellor
Link: https://github.com/ClangBuiltLinux/linux/issues/785
Link:
https://github.com/llvm/llvm-project/commit/e364e2e9ce50c12eb2bf093560e1a1a8544d455a
---
v3 -> v4:
* No changes.
v2 -> v3:
* No changes.
v1 ->
On Tue, Apr 28, 2020 at 06:10:06PM +1000, Stephen Rothwell wrote:
> Hi all,
>
> Changes since 20200424:
>
> The qcom tree still had its build failure for which I reverted a commit.
>
> The hwmon-staging tree gained a build failure for which I reverted
> a commit.
>
> The mac80211-next tree
a943d8 ("Staging: hv: add the Hyper-V virtual network driver")
Link: https://github.com/ClangBuiltLinux/linux/issues/1009
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Move splat into commit message rather than issue.
Comment from previous version:
Do note that netvsc_xmit still
dd channel stat to debugfs")
Link: https://github.com/ClangBuiltLinux/linux/issues/1012
Signed-off-by: Nathan Chancellor
---
drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-debugfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/freescale/dpaa2/dp
On Wed, Oct 23, 2019 at 05:59:23PM +0100, Mark Brown wrote:
> On Wed, Oct 23, 2019 at 09:54:17AM -0700, Nathan Chancellor wrote:
> > On Wed, Oct 23, 2019 at 05:36:56PM +0100, Mark Brown wrote:
> > > On Wed, Oct 23, 2019 at 09:26:28AM -0700, Nathan Chancellor wrote:
> >
On Wed, Oct 23, 2019 at 05:36:56PM +0100, Mark Brown wrote:
> On Wed, Oct 23, 2019 at 09:26:28AM -0700, Nathan Chancellor wrote:
> > On Wed, Oct 23, 2019 at 11:43:04AM +0100, Mark Brown wrote:
>
> > > The driver should also have supported s3c6400 as well.
>
> > Kc
On Wed, Oct 23, 2019 at 11:43:04AM +0100, Mark Brown wrote:
> On Wed, Oct 23, 2019 at 08:53:02AM +0530, Viresh Kumar wrote:
> > On 22-10-19, 17:09, Nathan Chancellor wrote:
> > > When building with Clang + -Wtautological-pointer-compare:
> > >
> > > dri
s://github.com/ClangBuiltLinux/linux/issues/750
Signed-off-by: Nathan Chancellor
---
drivers/net/wireless/realtek/rtlwifi/regd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/realtek/rtlwifi/regd.c
b/drivers/net/wireless/realtek/rtlwifi/regd.c
ind
gBuiltLinux/linux/issues/749
Signed-off-by: Nathan Chancellor
---
Note: I am not sure if these checks were intended to check if the
contents of these arrays were NULL or if there should be some other
checks in lieu of these; I am not familiar with the USB subsystem to
answer this but I w
ink: https://github.com/ClangBuiltLinux/linux/issues/748
Signed-off-by: Nathan Chancellor
---
drivers/cpufreq/s3c64xx-cpufreq.c | 7 ---
1 file changed, 7 deletions(-)
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c
b/drivers/cpufreq/s3c64xx-cpufreq.c
index af0c00dabb22..c6bdfc308e99 100644
---
2 ("cpumask: Add helper cpumask_available()") to fix
warnings like this while keeping the code the same.
Link: https://github.com/ClangBuiltLinux/linux/issues/747
Signed-off-by: Nathan Chancellor
---
kernel/profile.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff
ning.
Fixes: f2835adf8afb ("dmaengine: fsl-dpaa2-qdma: Add the DPDMAI(Data Path DMA
Interface) support")
Link: https://github.com/ClangBuiltLinux/linux/issues/746
Signed-off-by: Nathan Chancellor
---
drivers/dma/fsl-dpaa2-qdma/dpdmai.c | 4 +---
1 file changed, 1 insertion(+), 3 de
n was
set; right now, | is being evaluated first. Add parentheses around the
?: block to have it be evaluated first.
Fixes: 9919d44ff297 ("clk: sunxi: Use CLK_IS_CRITICAL flag for critical clks")
Link: https://github.com/ClangBuiltLinux/linux/issues/745
Signed-off-by: Nathan Chancellor
---
On Fri, Oct 18, 2019 at 03:02:10PM -0500, Segher Boessenkool wrote:
> On Fri, Oct 18, 2019 at 12:00:22PM -0700, Nathan Chancellor wrote:
> > Just as an FYI, there was some more discussion around the availablity
> > and use of bcmp in this LLVM bug which spawned
> > comm
Signed-off-by: Nathan Chancellor
---
drivers/bluetooth/btintel.h | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/bluetooth/btintel.h b/drivers/bluetooth/btintel.h
index d2311156f778..a69ea8a87b9b 100644
--- a/drivers/bluetooth/btintel.h
+++ b/drivers/bluetooth/btintel.h
@@ -185,6 +185,5 @@ sta
On Mon, Oct 14, 2019 at 02:11:41PM -0500, Segher Boessenkool wrote:
> On Mon, Oct 14, 2019 at 08:56:12AM -0700, Nick Desaulniers wrote:
> > On Mon, Oct 14, 2019 at 2:35 AM Segher Boessenkool
> > wrote:
> > >
> > > On Sun, Oct 13, 2019 at 07:51:01PM -0700, Nathan
On Wed, Oct 16, 2019 at 05:09:30PM +0200, Nicolas Saenz Julienne wrote:
> On Wed, 2019-10-16 at 16:08 +0100, Catalin Marinas wrote:
> > On Wed, Oct 16, 2019 at 07:47:14AM -0700, Nathan Chancellor wrote:
> > > When building arm64 allnoconfig, CONFIG_ZONE_DMA and CONFIG_ZONE_DMA32
generated.
Add __maybe_unused to make this clear to the compiler.
Fixes: 1a8e1cef7603 ("arm64: use both ZONE_DMA and ZONE_DMA32")
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Fix check for CONFIG_ZONE_DMA32 as pointed out by Will.
v2 -> v3:
* Use __maybe_unused a
generated.
Add an ifdef around the variable to fix this.
Fixes: 1a8e1cef7603 ("arm64: use both ZONE_DMA and ZONE_DMA32")
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Fix check for CONFIG_ZONE_DMA32 as pointed out by Will.
arch/arm64/mm/init.c | 2 ++
1 file changed, 2 insertions(+
On Wed, Oct 16, 2019 at 04:00:52AM +0100, Will Deacon wrote:
> On Tue, Oct 15, 2019 at 03:43:04PM -0700, Nathan Chancellor wrote:
> > When building arm64 allnoconfig, CONFIG_ZONE_DMA and CONFIG_ZONE_DMA32
> > get disabled so there is a warning about max_dma being unused.
> >
generated.
Add an ifdef around the variable to fix this.
Fixes: 1a8e1cef7603 ("arm64: use both ZONE_DMA and ZONE_DMA32")
Signed-off-by: Nathan Chancellor
---
arch/arm64/mm/init.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 44
ed-by: Daniel Axtens
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Improve commit message
v2 -> v3:
* Rebase and merge into a single series.
v3 -> v4:
* Rebase on v5.4-rc3.
* Update links to point to llvmorg-9.0.0 instead of llvmorg-9.0.0-rc2.
arch/powerpc/Makefile | 4
ect/commit/3be25e79477db2d31ac46493d97eca8c20592b07
Link: https://godbolt.org/z/B2oQnl
Suggested-by: Segher Boessenkool
Reviewed-by: Nick Desaulniers
Signed-off-by: Nathan Chancellor
---
v1 -> v3 (I skipped v2 because the first patch in the series already
had a v2):
* Use -ffreesta
Hi all,
This series includes a set of fixes for LLVM/Clang when building
pseries_defconfig. These have been floating around as standalone
patches so I decided to gather them up as a series so it was easier
to review/apply them.
This has been broken for a bit now, it would be nice to get these
ee to make
transformations like this.
Link: https://github.com/ClangBuiltLinux/linux/issues/647
Link:
https://github.com/llvm/llvm-project/commit/76cdcf25b883751d83402baea6316772aa73865c
Reviewed-by: Nick Desaulneris
Signed-off-by: Nathan Chancellor
---
v1 -> v3:
* New patch in the series
v3 -> v4:
On Sat, Oct 12, 2019 at 05:59:18PM +0530, Shyam Saini wrote:
> This parameters are not changed after early boot.
> By making them __ro_after_init will reduce any attack surface in the
> kernel.
>
> Link: https://lwn.net/Articles/676145/
> Cc: Christoph Hellwig
> Cc: Marek Szyprowski
> Cc: Robin
_stop_hc()")
Signed-off-by: Nathan Chancellor
---
drivers/usb/host/ohci-at91.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 513e48397743..b635c6a1b1a9 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at9
(although MIPS
wasn't buildable until Clang 9); building a kernel with Clang 9.0.0
has no issues after this change.
Fixes: 6baaeadae911 ("MIPS: Provide unroll() macro, use it for cache ops")
Link: https://github.com/ClangBuiltLinux/linux/issues/736
Signed-off-by: Nathan Chancellor
---
arc
On Tue, Oct 08, 2019 at 04:59:25PM -0700, 'Sami Tolvanen' via Clang Built Linux
wrote:
> On Tue, Oct 8, 2019 at 4:31 PM Andrew Murray wrote:
> > This looks good to me. I can build and boot in a model with both Clang
> > (9.0.6) and GCC (7.3.1) and boot a guest without anything going bang.
>
>
On Mon, Oct 07, 2019 at 07:55:46PM +0200, Hans de Goede wrote:
> Since we link purgatory.ro with -r aka we enable "incremental linking"
> no checks for unresolved symbols is done while linking purgatory.ro.
>
> Changes to the sha256 code has caused the purgatory in 5.4-rc1 to have
> a missing
d-off-by: Aleksa Sarai
I assume the comment diff is a line length/alignment thing? The commit
message does not mention it.
Regardless, thank you for providing the fix that I should have.
Reviewed-by: Nathan Chancellor
On Fri, Oct 04, 2019 at 10:53:41AM -0700, Linus Torvalds wrote:
> On Fri, Oct 4, 2019 at 3:42 AM Christian Brauner
> wrote:
> >
> >The only separate fix we we had to apply
> > was for a warning by clang when building the tests for using the result of
> > an assignment as a condition
hub.com/ClangBuiltLinux/linux/issues/731
Signed-off-by: Nathan Chancellor
---
lib/test_user_copy.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/test_user_copy.c b/lib/test_user_copy.c
index 950ee88cd6ac..e365ace06538 100644
--- a/lib/test_user_copy.c
+++ b/lib/test_us
On Sun, Sep 29, 2019 at 01:35:18PM -0400, Sasha Levin wrote:
> From: Nick Desaulniers
>
> [ Upstream commit a05b9608456e0d4464c6f7ca8572324ace57a3f4 ]
>
> Clang produces references to __aeabi_uidivmod and __aeabi_idivmod for
> arm-linux-gnueabi and arm-linux-gnueabihf targets incorrectly when
thub.com/ClangBuiltLinux/linux/issues/718
Signed-off-by: Nathan Chancellor
---
tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/tools/power/cpupower/utils/idle_monitor/hsw_ext_idle.c
b/tools/power/cpupower/utils/idle_monitor/hsw
ment to fix
the warnings and find potential issues in the future.
Link:
https://github.com/llvm/llvm-project/commit/28b38c277a2941e9e891b2db30652cfd962f070b
Link: https://github.com/ClangBuiltLinux/linux/issues/686
Reviewed-by: Nick Desaulniers
Signed-off-by: Nathan Chancellor
---
v1 ->
N statement to fix the warnings.
Link:
https://github.com/llvm/llvm-project/commit/28b38c277a2941e9e891b2db30652cfd962f070b
Link: https://github.com/ClangBuiltLinux/linux/issues/686
Signed-off-by: Nathan Chancellor
---
kernel/trace/trace.h | 10 +-
1 file changed, 5 insertions(+), 5 deletio
Hi Greg and Sasha,
We received a report of an objtool build failure with clang related to
-Wunused-parameter [1], which turned out to be related to the distro's
CFLAGS. Josh patched this up in commit f73b3cc39c84 ("objtool: Clobber
user CFLAGS variable"), could it be added to -stable whenever
On Mon, Sep 23, 2019 at 03:24:02PM -0700, 'Nick Desaulniers' via Clang Built
Linux wrote:
> Linking with ld.lld via $ make LD=ld.lld produces the warning:
> ld.lld: warning: cannot find entry symbol _start; defaulting to 0x1000
>
> Linking with ld.bfd shows the default entry is 0x1000:
> $
sed-variable]
>
> They are only used when CONFIG_PPC64 is not defined. Move
> them into a section which does the same macro check.
>
> Reported-by: Nathan Chancellor
> Signed-off-by: Ilie Halip
Reviewed-by: Nathan Chancellor
issue, noticed that the 'address' parameter
> to hugetlb_fault_mutex_hash is no longer used. So, remove it from the
> definition and all callers.
>
> No functional change.
>
> Reported-by: Nathan Chancellor
> Signed-off-by: Mike Kravetz
Thanks for the patch!
Reviewed-by: Nathan Chancellor
On Wed, Sep 18, 2019 at 10:02:41AM +0100, Will Deacon wrote:
> On Tue, Sep 17, 2019 at 01:34:25PM -0700, Nathan Chancellor wrote:
> > On Tue, Sep 10, 2019 at 01:56:22PM +0200, Arnd Bergmann wrote:
> > > On arm64 build with clang, sometimes the __cmpxchg_mb is not
sues/660
Signed-off-by: Nathan Chancellor
---
I know that every maintainer has their own thing with the number of
includes in each header file; this issue can be solved in a various
number of ways, I went with the smallest diff stat. Please solve it in a
different way if you see fit :)
tools/testing/nvdi
ink: https://github.com/ClangBuiltLinux/linux/issues/658
Signed-off-by: Nathan Chancellor
---
drivers/net/ethernet/pensando/ionic/ionic_debugfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c
b/drivers/net/ethernet/pens
; Mark all of the cmpxchg() style functions as __always_inline to
> ensure that the compiler can see the result.
>
> Acked-by: Nick Desaulniers
> Reported-by: Nathan Chancellor
> Link: https://github.com/ClangBuiltLinux/linux/issues/648
> Reviewed-by: Nathan Chancellor
> Test
On Wed, Sep 11, 2019 at 02:01:59PM -0700, Nick Desaulniers wrote:
> On Wed, Sep 11, 2019 at 11:21 AM Nathan Chancellor
> wrote:
> >
> > r370454 gives LLVM the ability to convert certain loops into a reference
> > to bcmp as an optimization; this breaks prom_init_check.sh
ee to make
transformations like this.
Link: https://github.com/ClangBuiltLinux/linux/issues/647
Link:
https://github.com/llvm/llvm-project/commit/5c9f3cfec78f9e9ae013de9a0d092a68e3e79e002
Signed-off-by: Nathan Chancellor
---
New patch in the series so no previous version.
arch/powerpc/kernel/Makefile | 2
/issues/240
Reviewed-by: Daniel Axtens
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Improve commit message
v2 -> v3:
* Rebase and merge into a single series.
arch/powerpc/Makefile | 4
1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/Makefile b/arch/powerpc/M
ect/commit/3be25e79477db2d31ac46493d97eca8c20592b07
Suggested-by: Segher Boessenkool
Signed-off-by: Nathan Chancellor
---
v1 -> v3:
* Use -ffreestanding instead of outright disabling the warning because
it is legitimate.
I skipped v2 because the first patch in the series already had a v2.
Hi all,
This series includes a set of fixes for LLVM/Clang when building
pseries_defconfig. These have been floating around as standalone patches
so I decided to gather them up as a series so it was easier to
review/apply them. The versioning is a bit wonky because of this reason,
I have included
On Wed, Sep 11, 2019 at 04:30:38AM +1000, Michael Ellerman wrote:
> Nathan Chancellor writes:
> > On Wed, Sep 04, 2019 at 08:01:35AM -0500, Segher Boessenkool wrote:
> >> On Wed, Sep 04, 2019 at 08:16:45AM +, David Laight wrote:
> >> > From: Nathan Chancellor [m
; Mark all of the cmpxchg() style functions as __always_inline to
> ensure that the compiler can see the result.
>
> Signed-off-by: Arnd Bergmann
Reviewed-by: Nathan Chancellor
Tested-by: Nathan Chancellor
a couple of days ago:
https://lore.kernel.org/netdev/20190905014733.17564-1-natechancel...@gmail.com/
I don't care which patch goes in since they are the same thing so:
Reviewed-by: Nathan Chancellor
("net/mlx5: DR, ICM pool memory allocator")
Link: https://github.com/ClangBuiltLinux/linux/issues/653
Signed-off-by: Nathan Chancellor
---
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_icm_pool.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethern
so there are
no warnings about mismatched types.
Fixes: 9db810ed2d37 ("net/mlx5: DR, Expose steering action functionality")
Link: https://github.com/ClangBuiltLinux/linux/issues/652
Signed-off-by: Nathan Chancellor
---
drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c | 2 +-
1 fi
On Wed, Sep 04, 2019 at 08:01:35AM -0500, Segher Boessenkool wrote:
> On Wed, Sep 04, 2019 at 08:16:45AM +, David Laight wrote:
> > From: Nathan Chancellor [mailto:natechancel...@gmail.com]
> > > Fair enough so I guess we are back to just outright disabling the
> >
On Wed, Sep 04, 2019 at 11:46:45PM +0200, Arnd Bergmann wrote:
> On Sat, Aug 31, 2019 at 6:26 PM Masahiro Yamada
> wrote:
>
> > +# Some diagnostics enabled by default are noisy.
> > +# Suppress them by using -Wno... except for W=1.
> > +
> > ifdef CONFIG_CC_IS_CLANG
> > KBUILD_CFLAGS +=
On Tue, Sep 03, 2019 at 02:31:28PM -0500, Segher Boessenkool wrote:
> On Mon, Sep 02, 2019 at 10:55:53PM -0700, Nathan Chancellor wrote:
> > On Thu, Aug 29, 2019 at 09:59:48AM +, David Laight wrote:
> > > From: Nathan Chancellor
> > > > Sent: 28 August 2019 19:4
On Thu, Aug 29, 2019 at 09:59:48AM +, David Laight wrote:
> From: Nathan Chancellor
> > Sent: 28 August 2019 19:45
> ...
> > However, I think that -fno-builtin-* would be appropriate here because
> > we are providing our own setjmp implementation, meaning clang should
note: remove the 'if' if its
condition is always true
if (p_fs->dev_ejected)
^~
drivers/staging/exfat/exfat_super.c:776:9: note: initialize the variable 'ret'
to silence this warning
int ret;
^
= 0
1 warning generated.
Reviewed-by: Nathan Chancellor
Reviewed-by: Nick Desaulniers
Reviewed-by: Stefan Agner
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Add Nick and Stefan's reviewed by tags
* Move version check from Makefile to Kconfig. This prevents '-pg` from
ever being added if '-meabi gnu' would produce a non-booting ker
On Thu, Aug 29, 2019 at 01:57:35PM -0700, Nick Desaulniers wrote:
> On Thu, Aug 29, 2019 at 1:21 PM Stefan Agner wrote:
> >
> > On 2019-08-29 21:34, Nathan Chancellor wrote:
> > > On Thu, Aug 29, 2019 at 10:55:28AM -0700, Nick Desaulniers wrote:
> > >> On
On Thu, Aug 29, 2019 at 10:55:28AM -0700, Nick Desaulniers wrote:
> On Wed, Aug 28, 2019 at 11:27 PM Nathan Chancellor
> wrote:
> >
> > Currently, multi_v7_defconfig + CONFIG_FUNCTION_TRACER fails to build
> > with clang:
> >
> > arm-linux-gnuea
/issues/35
Link: https://bugs.llvm.org/show_bug.cgi?id=33845
Link:
https://github.com/llvm/llvm-project/commit/16fa8b09702378bacfa3d07081afe6b353b99e60
Signed-off-by: Nathan Chancellor
---
arch/arm/Makefile | 6 ++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
On Wed, Aug 28, 2019 at 04:28:30PM -0700, Nick Desaulniers wrote:
> On Wed, Aug 28, 2019 at 11:20 AM Nathan Chancellor
> wrote:
> >
> > On Wed, Aug 28, 2019 at 02:54:25PM +0900, Masahiro Yamada wrote:
> > > GCC and Clang have different policy for -Wunused-function; GCC
On Wed, Aug 28, 2019 at 11:01:14AM -0700, Nick Desaulniers wrote:
> On Wed, Aug 28, 2019 at 10:53 AM Nathan Chancellor
> wrote:
> >
> > On Wed, Aug 28, 2019 at 11:43:53PM +1000, Michael Ellerman wrote:
> > > Nathan Chancellor writes:
> > >
> > > >
ce it is not a good idea to sprinkle warnings for the
> normal build.
>
> My initial attempt was to add -Wno-unused-function for no W=1 build
> (https://lore.kernel.org/patchwork/patch/1120594/)
>
> Nathan Chancellor pointed out that would weaken Clang's checks since
> we woul
t behavior since each warning belongs
> to only one warning level.
>
> Signed-off-by: Masahiro Yamada
Reviewed-by: Nathan Chancellor
On Wed, Aug 28, 2019 at 11:43:53PM +1000, Michael Ellerman wrote:
> Nathan Chancellor writes:
>
> > Commit aea447141c7e ("powerpc: Disable -Wbuiltin-requires-header when
> > setjmp is used") disabled -Wbuiltin-requires-header because of a warning
> > about t
On Tue, Aug 27, 2019 at 01:58:05PM -0700, Nick Desaulniers wrote:
> On Tue, Aug 27, 2019 at 12:28 PM Nathan Chancellor
> wrote:
> >
> > On Tue, Aug 27, 2019 at 07:36:21PM +0900, Masahiro Yamada wrote:
> > > GCC and Clang have different policy for -Wunused-function; GCC
tform/x86: mlx-platform: Properly use
> mlxplat_mlxcpld_msn201x_items"). (pointed out by Nathan Chancellor)
> I added -Wunneeded-internal-declaration to address it.
>
> If you contribute to code clean-up, please run "make CC=clang W=1"
> and check -Wunused-functi
resolved.
Suggested-by: Masahiro Yamada
Signed-off-by: Nathan Chancellor
---
Makefile | 8 +---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/Makefile b/Makefile
index f125625efd60..6007a56bdbee 100644
--- a/Makefile
+++ b/Makefile
@@ -751,6 +751,11 @@ else
# These warnings gene
On Sun, Aug 11, 2019 at 07:32:15PM -0700, Nathan Chancellor wrote:
> Commit aea447141c7e ("powerpc: Disable -Wbuiltin-requires-header when
> setjmp is used") disabled -Wbuiltin-requires-header because of a warning
> about the setjmp and longjmp declarations.
>
> r3673
On Mon, Aug 26, 2019 at 12:42:28PM -0300, Jason Gunthorpe wrote:
> On Mon, Aug 26, 2019 at 08:38:00AM -0700, Nathan Chancellor wrote:
> > On Fri, Aug 23, 2019 at 11:24:27AM -0300, Jason Gunthorpe wrote:
> > > The latest clang-9 packages from apt.llvm.org do seem to build the
&
Hi Jason,
On Fri, Aug 23, 2019 at 11:24:27AM -0300, Jason Gunthorpe wrote:
> On Thu, Jul 11, 2019 at 10:30:30AM -0700, Nathan Chancellor wrote:
> > On Thu, Jul 11, 2019 at 02:18:08PM -0300, Jason Gunthorpe wrote:
> > > On Thu, Jul 11, 2019 at 10:16:44AM -0700, Nick
seem to be used anywhere else.
>
> Signed-off-by: Ilie Halip
> Reported-by: "kernelci.org bot"
> Cc: Sascha Hauer
> Cc: Shawn Guo
> Cc: clang-built-li...@googlegroups.com
> Cc: linux-arm-ker...@lists.infradead.org
> Cc: linux-kernel@vger.kernel.org
Reviewed-by: Nathan Chancellor
On Thu, Aug 22, 2019 at 01:02:05PM -0700, 'Nick Desaulniers' via Clang Built
Linux wrote:
> On Thu, Aug 22, 2019 at 11:30 AM Nathan Huckleberry wrote:
> >
> > The stackframe setup when compiled with clang is different.
> > Since the stack unwinder expects the gcc stackframe setup it
> > fails to
/issues/240
Reviewed-by: Daniel Axtens
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Improve commit message wording and explanation.
* Add Daniel's reviewed-by.
arch/powerpc/Makefile | 4
1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Make
On Wed, Aug 07, 2019 at 12:23:05PM -0700, Nathan Chancellor wrote:
> After commit "linux/bits.h: Add compile time sanity check of GENMASK
> inputs" [1], arm64 defconfig builds started failing:
>
> In file included from ../include/linux/bits.h:22,
> from
On Tue, Aug 20, 2019 at 07:40:33AM -0500, Segher Boessenkool wrote:
> On Mon, Aug 19, 2019 at 08:15:38PM -0700, Nathan Chancellor wrote:
> > On Mon, Aug 19, 2019 at 04:19:31AM -0500, Segher Boessenkool wrote:
> > > On Sun, Aug 18, 2019 at 12:13:21PM -0700, Nathan Chancellor w
On Mon, Aug 19, 2019 at 05:59:48PM +0100, Mark Rutland wrote:
> Hi,
>
> I found that when I enable both KCOV and UBSAN on arm64, clang fails to
> emit any __sanitizer_cov_trace_*() calls in the resulting binary,
> rendering KCOV useless.
>
> For example, when building v5.3-rc3's
On Mon, Aug 19, 2019 at 04:19:31AM -0500, Segher Boessenkool wrote:
> On Sun, Aug 18, 2019 at 12:13:21PM -0700, Nathan Chancellor wrote:
> > When building pseries_defconfig, building vdso32 errors out:
> >
> > error: unknown target ABI 'elfv1'
> >
> > C
On Tue, Aug 20, 2019 at 01:58:26AM +0900, Masahiro Yamada wrote:
> Hi Nathan,
>
> On Tue, Aug 20, 2019 at 1:09 AM Nathan Chancellor
> wrote:
> >
> > On Mon, Aug 19, 2019 at 07:51:38PM +0900, Masahiro Yamada wrote:
> > > GCC and Clang have different polic
On Mon, Aug 19, 2019 at 07:51:38PM +0900, Masahiro Yamada wrote:
> GCC and Clang have different policy for -Wunused-function; GCC does
> not report unused-function warnings at all for the functions marked
> as 'static inline'. Clang does report unused-function warnings if they
> are defined in
/920890e26812f808a74c60ebc14cc636dac661c1
Signed-off-by: Nathan Chancellor
---
I highly doubt that 1e300 was intented but if it was (or something else
was), please let me know. Commit history wasn't entirely clear on why
this expression was used over just a raw number.
lib/test_bpf.c | 2 +-
1
8abecde8ad ("powerpc: Don't
use gcc specific options on clang").
pseries_defconfig successfully builds after this patch and
powernv_defconfig and ppc44x_defconfig don't regress.
Link: https://github.com/ClangBuiltLinux/linux/issues/240
Signed-off-by: Nathan Chancellor
---
arch/powerpc/
gt; >
> > Signed-off-by: Nathan Huckleberry
> > Suggested-by: Nathan Chancellor
> > Reviewed-by: Nathan Chancellor
> > ---
> > Changes v1->v2
> > * Move code to preexisting ifdef
> > scripts/Makefile.extrawarn | 1 +
> > 1 file changed, 1 ins
_CLANG section of scripts/Makefile.extrawarn
* Revert commit bfd77145f35c ("Makefile: Convert -Wimplicit-fallthrough=3
to just -Wimplicit-fallthrough for clang") for the time being and just
rely on adding -Wimplicit-fallthrough to KCFLAGS for testing.
Regardless:
Reviewed-by: Nathan Chancellor
On Fri, Aug 09, 2019 at 09:32:51AM +0100, Mark Rutland wrote:
> On Thu, Aug 08, 2019 at 10:09:16AM -0700, Nathan Chancellor wrote:
> > On Thu, Aug 08, 2019 at 11:38:08AM +0100, Mark Rutland wrote:
> > > On Wed, Aug 07, 2019 at 11:29:16PM -0400, Qian Cai wrote:
> > >
ys be true because sizeof is a non-zero number).
Fixes: bd8699e9e292 ("netfilter: nft_bitwise: add offload support")
Link: https://github.com/ClangBuiltLinux/linux/issues/638
Reported-by: kbuild test robot
Signed-off-by: Nathan Chancellor
---
net/netfilter/nft_bitwise.c | 4 ++--
1 file
On Wed, Aug 14, 2019 at 09:29:47AM +0530, Vinod Koul wrote:
> On 13-08-19, 09:22, Pierre-Louis Bossart wrote:
> > On 8/13/19 1:10 AM, Nathan Chancellor wrote:
> > > clang warns when CONFIG_ACPI is unset:
> > >
> > > ../drivers/soundwire/slave.c:16:12: warning:
: https://github.com/ClangBuiltLinux/linux/issues/637
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Rename slave.o to acpi_slave.o
* Reword commit message to reflect this
drivers/soundwire/Makefile | 6 +-
drivers/soundwire/{slave.c => acpi_slave.c} | 3 ---
2 f
On Tue, Aug 13, 2019 at 09:22:29AM -0500, Pierre-Louis Bossart wrote:
> On 8/13/19 1:10 AM, Nathan Chancellor wrote:
> > clang warns when CONFIG_ACPI is unset:
> >
> > ../drivers/soundwire/slave.c:16:12: warning: unused function
> > 'sdw_slave_add' [-Wunused-function]
&
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