Hi Greg and Sasha,
Attached is an mbox with a series of patches to allow building the
powerpc kernel with Clang. We have been running continuous integration
that builds and boots the kernel in QEMU for almost two months now with
no regressions. This is on top of 4.19.14, there should be no
Hi Greg and Sasha,
Attached is an mbox with a series of patches to allow building the
powerpc kernel with Clang. We have been running continuous integration
that builds and boots the kernel in QEMU for almost two months now with
no regressions. This is on top of 4.14.92, there should be no
ation
changes)")
Link: https://github.com/ClangBuiltLinux/linux/issues/390
Signed-off-by: Nathan Chancellor
---
arch/powerpc/xmon/ppc-dis.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/xmon/ppc-dis.c b/arch/powerpc/xmon/ppc-dis.c
index 9deea5ee13f6..27f1e6415
Hi Michael,
On Sun, Jun 02, 2019 at 08:15:38PM +1000, Michael Ellerman wrote:
> Hi Nathan,
>
> It's always preferable IMHO to keep any initialisation as localised as
> possible, so that the compiler can continue to warn about uninitialised
> usages elsewhere. In this case that would mean doing
inux/linux/issues/502
Signed-off-by: Nathan Chancellor
---
drivers/scsi/ibmvscsi/ibmvscsi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 727c31dc11a0..6714d8043e62 100644
--- a/drivers/scsi/ibmvscsi/
ug/drc-info: Add code to search ibm,drc-info
property")
Signed-off-by: Nathan Chancellor
---
drivers/pci/hotplug/rpaphp_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/hotplug/rpaphp_core.c
b/drivers/pci/hotplug/rpaphp_core.c
index bcd5d35
which will
fix this warning.
Link: https://github.com/ClangBuiltLinux/linux/issues/504
Fixes: 2fcf3ae508c2 ("hotplug/drc-info: Add code to search ibm,drc-info
property")
Suggested-by: Nick Desaulniers
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Eliminate fndit altogether by sh
;scsi: ibmvscsi: redo driver work thread to use enum
action states")
Link: https://github.com/ClangBuiltLinux/linux/issues/502
Suggested-by: Michael Ellerman
Suggested-by: Tyrel Datwyler
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Initialize rc in the case statements, rather th
github.com/ClangBuiltLinux/linux/issues/502
Suggested-by: Michael Ellerman
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* Initialize rc in the case statements, rather than at the top of the
function, as suggested by Michael.
drivers/scsi/ibmvscsi/ibmvscsi.c | 6 +++---
1 file changed,
Hi Nick,
On Mon, Jun 03, 2019 at 02:07:50PM -0700, Nick Desaulniers wrote:
> On Mon, Jun 3, 2019 at 10:44 AM Nathan Chancellor
> wrote:
> > Looking at the loop in a vacuum as clang would, fndit could be
> > uninitialized if entries was ever zero or the if statement was
>
On Thu, Jun 20, 2019 at 12:35:18PM +0200, David Hildenbrand wrote:
> walk_memory_range() was once used to iterate over sections. Now, it
> iterates over memory blocks. Rename the function, fixup the
> documentation. Also, pass start+size instead of PFNs, which is what most
> callers already have
On Mon, Jun 03, 2019 at 03:11:58PM -0700, Nathan Chancellor wrote:
> When building with -Wsometimes-uninitialized, clang warns:
>
> drivers/pci/hotplug/rpaphp_core.c:243:14: warning: variable 'fndit' is
> used uninitialized whenever 'for' loop exits because its condition is
> fal
On Tue, Jul 09, 2019 at 07:04:43AM +0200, Christophe Leroy wrote:
>
>
> Le 08/07/2019 à 21:14, Nathan Chancellor a écrit :
> > On Mon, Jul 08, 2019 at 11:19:30AM +1000, Michael Ellerman wrote:
> > > On Fri, 2019-05-10 at 09:24:48 UTC, Christophe Leroy wrote:
> >
On Mon, Jul 08, 2019 at 11:19:30AM +1000, Michael Ellerman wrote:
> On Fri, 2019-05-10 at 09:24:48 UTC, Christophe Leroy wrote:
> > Cache instructions (dcbz, dcbi, dcbf and dcbst) take two registers
> > that are summed to obtain the target address. Using 'Z' constraint
> > and '%y0' argument gives
On Mon, Aug 12, 2019 at 07:37:51AM +0200, Christophe Leroy wrote:
>
>
> Le 12/08/2019 à 04:32, Nathan Chancellor a écrit :
> > Commit aea447141c7e ("powerpc: Disable -Wbuiltin-requires-header when
> > setjmp is used") disabled -Wbuiltin-requires-header because of
ect/commit/3be25e79477db2d31ac46493d97eca8c20592b07
Signed-off-by: Nathan Chancellor
---
It may be worth using -fno-builtin-setjmp and -fno-builtin-longjmp
instead as it makes it clear to clang that we are not using the builtin
longjmp and setjmp functions, which I think is why these warnings are
appearing (at least
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/
On Sat, Aug 10, 2019 at 10:21:01AM -0700, Linus Torvalds wrote:
> On Sat, Aug 10, 2019 at 3:11 AM Michael Ellerman wrote:
> >
> > Just one fix, a revert of a commit that was meant to be a minor improvement
> > to
> > some inline asm, but ended up having no real benefit with GCC and broke
> >
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
/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 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 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 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
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 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 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:
> > >
> > > >
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
> >
/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
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
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
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
kml/20190721075846.GA97701@archlinux-threadripper/
> Debugged-by: Nathan Chancellor
> Reported-by: Nathan Chancellor
> Reported-by: kbuild test robot
> Suggested-by: Nathan Chancellor
> Signed-off-by: Nick Desaulniers
> ---
> Alternatively, we could just revert 6c5875843b8
On Mon, Jul 29, 2019 at 01:45:35PM -0700, Nick Desaulniers wrote:
> On Mon, Jul 29, 2019 at 1:32 PM Nathan Chancellor
> wrote:
> >
> > On Mon, Jul 29, 2019 at 01:25:41PM -0700, Nick Desaulniers wrote:
> > > But I'm not sure how the inlined code generated would be affec
: slightly improve cache helpers")
> Debugged-by: Nathan Chancellor
> Reported-by: Nathan Chancellor
> Reported-by: kbuild test robot
> Suggested-by: Arnd Bergmann
> Suggested-by: Nathan Chancellor
> Signed-off-by: Nick Desaulniers
I applied this patch as well as a re
On Fri, Jul 19, 2019 at 09:04:55AM -0700, Nathan Chancellor wrote:
> On Fri, Jul 19, 2019 at 10:23:03AM -0500, Segher Boessenkool wrote:
> > On Thu, Jul 18, 2019 at 08:24:56PM -0700, Nathan Chancellor wrote:
> > > On Mon, Jul 08, 2019 at 11:49:52PM -0700, Nathan Chancellor wro
On Mon, Jul 08, 2019 at 11:49:52PM -0700, Nathan Chancellor wrote:
> On Tue, Jul 09, 2019 at 07:04:43AM +0200, Christophe Leroy wrote:
> > Is that a Clang bug ?
>
> No idea, it happens with clang-8 and clang-9 though (pretty sure there
> were fixes for PowerPC in clang-8 s
On Fri, Jul 19, 2019 at 10:23:03AM -0500, Segher Boessenkool wrote:
> On Thu, Jul 18, 2019 at 08:24:56PM -0700, Nathan Chancellor wrote:
> > On Mon, Jul 08, 2019 at 11:49:52PM -0700, Nathan Chancellor wrote:
> > > On Tue, Jul 09, 2019 at 07:04:43AM +0200, Chri
Hi Segher,
On Sun, Jul 21, 2019 at 01:01:50PM -0500, Segher Boessenkool wrote:
> On Sun, Jul 21, 2019 at 12:58:46AM -0700, Nathan Chancellor wrote:
> > I have attached the disassembly of arch/powerpc/kernel/mem.o with
> > clear_page (working) and broken_clear_page (broken), alon
On Mon, Jun 03, 2019 at 03:11:58PM -0700, Nathan Chancellor wrote:
> When building with -Wsometimes-uninitialized, clang warns:
>
> drivers/pci/hotplug/rpaphp_core.c:243:14: warning: variable 'fndit' is
> used uninitialized whenever 'for' loop exits because its condition is
> fal
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
On Tue, Jul 09, 2019 at 09:56:37PM +0530, Abdul Haleem wrote:
> Greeting's
>
> linux-next failed to build on Power 9 Box with below error
>
> In file included from drivers/gpu/drm/amd/amdgpu/amdgpu.h:72:0,
> from drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c:39:
>
github.com/ClangBuiltLinux/linux/issues/780
Signed-off-by: Nathan Chancellor
---
arch/powerpc/boot/4xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/boot/4xx.c b/arch/powerpc/boot/4xx.c
index 1699e9531552..00c4d843a023 100644
--- a/arch/powerpc/boot/4xx.c
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
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
Hi all,
This series includes a set of fixes for LLVM/Clang when building
a few defconfigs (powernv, ppc44x, and pseries are the ones that our
CI configuration tests [1]). The first patch fixes pseries_defconfig,
which has never worked in mainline. The second and third patches fixes
issues with
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.
v4 -> v5:
* Rebase on next-2019
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
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 Thu, Nov 21, 2019 at 10:26:44AM +0100, Nicolas Saenz Julienne wrote:
> Using a mask to represent bus DMA constraints has a set of limitations.
> The biggest one being it can only hold a power of two (minus one). The
> DMA mapping code is already aware of this and treats dev->bus_dma_mask
> as a
On Thu, Nov 28, 2019 at 03:59:07PM +1100, Michael Ellerman wrote:
> Nick Desaulniers writes:
> > Hi Michael,
> > Do you have feedback for Nathan? Rebasing these patches is becoming a
> > nuisance for our CI, and we would like to keep building PPC w/ Clang.
>
> Sorry just lost in the flood of
On Tue, Oct 22, 2019 at 03:57:09AM -0500, Segher Boessenkool wrote:
> On Mon, Oct 21, 2019 at 10:15:29PM -0700, Nathan Chancellor wrote:
> > On Fri, Oct 18, 2019 at 03:02:10PM -0500, Segher Boessenkool wrote:
> > > I think the proper solution is for the kernel to *do*
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:
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
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
On Wed, Feb 05, 2020 at 07:25:59AM +0100, Christophe Leroy wrote:
>
>
> Le 05/02/2020 à 01:50, Fangrui Song a écrit :
> > A PC-relative relocation (R_PPC_REL16_LO in this case) referencing a
> > preemptible symbol in a -shared link is not allowed. GNU ld's powerpc
> > port is permissive and
> static inline pte_t *virt_to_kpte(unsigned long vaddr)
> {
> - return pte_offset_kernel(pmd_ptr_k(vaddr), vaddr);
> + pmd_t *pmd = pmd_ptr_k(vaddr);
> +
> + return pmd_none(*pmd) ? NULL : pte_offset_kernel(pmd, vaddr);
> }
> #endif
>
> --
> 2.25.0
>
With QEMU 4.2.0, I can confirm this fixes the panic:
Tested-by: Nathan Chancellor
on of the requirement that these exceptions cause
> interrupts when MSR[EE]=1 (e.g., when mtmsr executes to completion as
> TCG is doing here), rather it specifies how a pipelined processor can
> have multiple instructions in flight where one may influence how another
> behaves.
&
On Tue, Apr 14, 2020 at 12:05:53PM +1000, David Gibson wrote:
> On Sat, Apr 11, 2020 at 11:57:23PM +1000, Nicholas Piggin wrote:
> > Nicholas Piggin's on April 11, 2020 7:32 pm:
> > > Nathan Chancellor's on April 11, 2020 10:53 am:
> > >> The tt.config values are needed to reproduce but I did not
for x86
and arm32 in commit dea632cadd12 ("lib/mpi: fix build with clang") and
commit 7b7c1df2883d ("lib/mpi/longlong.h: fix building with 32-bit
x86").
Reported-by: kbuild test robot
Link: https://github.com/ClangBuiltLinux/linux/issues/991
Signed-off-by: Nathan Chancellor
---
but define_machine actually
defines mach_##name, hence the warning.
To fix this, move define_machine after the is_machine usage.
Fixes: 5a7ee3198dfa ("powerpc: wii: platform support")
Reported-by: kbuild test robot
Link: https://github.com/ClangBuiltLinux/linux/issues/989
Signed-off-
Hi all,
0day reported a build error in arch/powerpc/platforms/embedded6xx/mvme5100.c
when building with clang [1]. This is not a clang specific issue since
it also happens with gcc:
$ curl -LSs
https://lore.kernel.org/lkml/202004131704.6mh1jcq3%25...@intel.com/2-a.bin |
gzip -d > .config
$
you can run it and verify it fixes
> your boot hang would be good.
Yes, with this patch applied on top of 5.0.0-rc2 and using the
pseries-3.1 and powernv8 machines, I do not see any hangs with a clang
built kernel at b032227c62939b5481bcd45442b36dfa263f4a7c across 100
boots.
If you happen to se
Hi Michael,
On Tue, Apr 14, 2020 at 05:33:45PM +1000, Michael Ellerman wrote:
> Hi Nathan,
>
> Thanks for the report.
>
> Nathan Chancellor writes:
> > Hi all,
> >
> > 0day reported a build error in arch/powerpc/platforms/embedded6xx/mvme5100.
Hi all,
Recently, our CI started running into several hangs when running the
spinlock torture tests during a boot with QEMU 3.1.0 on
powernv_defconfig and pseries_defconfig when compiled with Clang.
I initially bisected Linux and came down to commit 3282a3da25bd
("powerpc/64: Implement soft
Hi Nicholas,
On Sat, Apr 11, 2020 at 10:29:45AM +1000, Nicholas Piggin wrote:
> Nathan Chancellor's on April 11, 2020 6:59 am:
> > Hi all,
> >
> > Recently, our CI started running into several hangs when running the
> > spinlock torture tests during a boot with QEMU 3.1.0 on
> >
On Fri, Mar 27, 2020 at 06:45:21PM +0100, Christophe Leroy wrote:
> Subject line, change longjump to longjmp
>
> Le 27/03/2020 à 11:07, Clement Courbet a écrit :
> > Declaring setjmp()/longjmp() as taking longs makes the signature
> > non-standard, and makes clang complain. In the past, this has
the
> appropriate branches.
The tags should be:
Cc: sta...@vger.kernel.org # v4.14+
Fixes: c9029ef9c957 ("powerpc: Avoid clang warnings around setjmp and longjmp")
that way it explicitly gets picked up for stable, rather than Sasha's
AUTOSEL process, which could miss it.
With the xmon/Makefile -ffreestanding removed and the tags updated,
consider this:
Reviewed-by: Nathan Chancellor
Tested-by: Nathan Chancellor
Cheers,
Nathan
> https://lore.kernel.org/patchwork/patch/1216174
>
> Signed-off-by: Clement Courbet
> Reviewed-by: Nathan Chancellor
> Tested-by: Nathan Chancellor
>
> ---
>
> v2:
> Use and array type as suggested by Segher Boessenkool
> Cc: sta...@vger.kernel.org # v4.14
On Fri, Apr 24, 2020 at 01:23:37PM +1000, Michael Ellerman wrote:
> Nathan Chancellor writes:
> > On Tue, Apr 14, 2020 at 11:57:31PM +1000, Herbert Xu wrote:
> >> On Mon, Apr 13, 2020 at 12:50:42PM -0700, Nathan Chancellor wrote:
> >> > 0day reports over and
On Tue, Apr 14, 2020 at 11:57:31PM +1000, Herbert Xu wrote:
> On Mon, Apr 13, 2020 at 12:50:42PM -0700, Nathan Chancellor wrote:
> > 0day reports over and over on an powerpc randconfig with clang:
> >
> > lib/mpi/generic_mpih-mul1.c:37:13: error: invalid use of a cast in a
&
On Mon, Apr 13, 2020 at 12:06:45PM -0700, Nathan Chancellor wrote:
> A 0day randconfig uncovered an error with clang, trimmed for brevity:
>
> arch/powerpc/platforms/embedded6xx/wii.c:195:7: error: attribute
> declaration must precede definition [-Werror,-Wignore
ast 12 years, there is
not anyone actually trying to use this driver so we can just remove this
special walnut code and use the generic header so it builds for all
configurations.
Fixes: 917f0af9e5a9 ("powerpc: Remove arch/ppc and include/asm-ppc")
Reported-by: kbuild test robot
Signe
bolt.org/z/kDoYSA
Link: https://github.com/ClangBuiltLinux/linux/issues/662
Reported-by: Nick Desaulniers
Suggested-by: Ilie Halip
Signed-off-by: Nathan Chancellor
---
arch/powerpc/platforms/maple/setup.c | 34 ++--
1 file changed, 17 insertions(+), 17 deletions(-)
diff --
On Tue, May 19, 2020 at 05:56:32PM -0700, 'Nick Desaulniers' via Clang Built
Linux wrote:
> Looks like our CI is still red from this:
>
> https://travis-ci.com/github/ClangBuiltLinux/continuous-integration/builds/166854584
>
> Filing a bug to follow up on:
>
On Thu, May 21, 2020 at 03:23:11PM -0700, Nick Desaulniers wrote:
> On Thu, May 21, 2020 at 6:00 AM Michael Ellerman wrote:
> >
> > Nathan Chancellor writes:
> > > On Tue, May 19, 2020 at 05:56:32PM -0700, 'Nick Desaulniers' via Clang
> > > Built Linux wrote:
On Tue, Sep 01, 2020 at 03:25:21PM -0700, Nick Desaulniers wrote:
> Kees Cook is working on series that adds --orphan-section=warn to arm,
> arm64, and x86. I noticed that ppc vdso were still using cc-ldoption
> for these which I removed. It seems this results in that flag being
> silently
On Wed, Sep 02, 2020 at 05:12:22PM +0530, Aneesh Kumar K.V wrote:
> pte_clear_tests operate on an existing pte entry. Make sure that
> is not a none pte entry.
>
> Signed-off-by: Aneesh Kumar K.V
> ---
> mm/debug_vm_pgtable.c | 7 ---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
>
On Sun, Aug 23, 2020 at 10:48:41PM -0500, Gustavo A. R. Silva wrote:
> Hi Linus,
>
> Not sure what the problem was with my pull-request for -rc2. So, I'm giving
> this a second try because I think it is worth it.
>
> I have build-tested this patch on 10 different architectures: x86_64, i386,
>
esaulniers
Signed-off-by: Nathan Chancellor
---
v1 -> v2:
* s/is_machine/machine_is/ (Nick)
* Add Nick's reviewed-by tag.
arch/powerpc/platforms/embedded6xx/wii.c | 25
1 file changed, 12 insertions(+), 13 deletions(-)
diff --git a/arch/powerpc/platforms/embedde
Hi Geert,
On Wed, May 27, 2020 at 09:02:51AM +0200, Geert Uytterhoeven wrote:
> Hi Nathan,
>
> CC Laurent
>
> On Wed, May 27, 2020 at 6:37 AM Nathan Chancellor
> wrote:
> > After mm.h was removed from the asm-generic version of cacheflush.h,
> > s390 allye
in this file and shuffle cacheflush.h below it.
Fixes: 19c0054597a0 ("asm-generic: don't include in cacheflush.h")
Signed-off-by: Nathan Chancellor
---
I am aware the fixes tag is kind of irrelevant because that SHA will
change in the next linux-next revision and this will probably
On Mon, Oct 26, 2020 at 12:36:52PM -0700, Guenter Roeck wrote:
> On Wed, Oct 21, 2020 at 07:36:07PM -0700, Joe Perches wrote:
> > Use a more generic form for __section that requires quotes to avoid
> > complications with clang and gcc differences.
> >
> > Remove the quote operator # from
On Wed, Jul 22, 2020 at 04:57:14PM +1000, Oliver O'Halloran wrote:
> Using single PE BARs to map an SR-IOV BAR is really a choice about what
> strategy to use when mapping a BAR. It doesn't make much sense for this to
> be a global setting since a device might have one large BAR which needs to
>
On Sun, Aug 02, 2020 at 11:12:23PM +1000, Michael Ellerman wrote:
> Nathan Chancellor writes:
> > On Wed, Jul 22, 2020 at 04:57:14PM +1000, Oliver O'Halloran wrote:
> >> Using single PE BARs to map an SR-IOV BAR is really a choice about what
> >> strategy to use whe
On Thu, May 21, 2020 at 04:55:52PM +, Christophe Leroy wrote:
> From: Michal Simek
>
> The latest Xilinx design tools called ISE and EDK has been released in
> October 2013. New tool doesn't support any PPC405/PPC440 new designs.
> These platforms are no longer supported and tested.
>
>
Hi Michal,
On Tue, Jun 16, 2020 at 04:45:20PM +0200, Michal Simek wrote:
>
>
> On 16. 06. 20 2:27, Nathan Chancellor wrote:
> > On Thu, May 21, 2020 at 04:55:52PM +, Christophe Leroy wrote:
> >> From: Michal Simek
> >>
> >> The latest Xilin
sembly with either clang/ld.lld
or gcc/ld (tested with diff + objdump -Dr).
Link: https://github.com/ClangBuiltLinux/linux/issues/212
Reported-by: Joel Stanley
Signed-off-by: Nathan Chancellor
---
arch/powerpc/boot/main.c | 4 ++--
arch/powerpc/boot/ps3.c | 2 +-
2 files changed, 3 insertions(+), 3 del
On Thu, Jun 18, 2020 at 10:48:21AM +1000, Michael Ellerman wrote:
> Nick Desaulniers writes:
> > On Wed, Jun 17, 2020 at 3:20 AM Michael Ellerman
> > wrote:
> >> Michael Ellerman writes:
> >> > Michal Simek writes:
> >>
> >>
> >> >> Or if bamboo requires uImage to be built by default you can
On Sat, Jul 18, 2020 at 09:50:50AM +0200, Geert Uytterhoeven wrote:
> Hi Nathan,
>
> On Wed, Jun 24, 2020 at 6:02 AM Nathan Chancellor
> wrote:
> > arch/powerpc/boot/main.c:107:18: warning: array comparison always
> > evaluates to a constant [-Wtautological-compare]
>
On Tue, Nov 17, 2020 at 12:50:31PM -0600, Tyrel Datwyler wrote:
> The vfcFrame correlation field is 64bit handle that is intended to trace
> I/O operations through both the client stack and VIOS stack when the
> underlying physical FC adapter supports tagging.
>
> Tag vfcFrames with the
On Fri, Nov 13, 2020 at 11:42:03AM -0800, Nick Desaulniers wrote:
> + MPE, PPC
>
> On Fri, Nov 13, 2020 at 11:08 AM Nathan Chancellor
> wrote:
> >
> > On Fri, Nov 13, 2020 at 09:28:03AM -0800, Fāng-ruì Sòng wrote:
> > > On Thu, Nov 12, 2020 at 7:22 PM kernel test
all of the sections are specified and size
asserted. A special thanks to Kees Cook for the help text on this
config.
Link: https://github.com/ClangBuiltLinux/linux/issues/1187
Signed-off-by: Nathan Chancellor
---
Makefile | 6 ++
arch/Kconfig | 9
-by: kernelci.org bot
Reported-by: Mark Brown
Link: https://github.com/ClangBuiltLinux/linux/issues/1187
Link: https://github.com/ClangBuiltLinux/linux/issues/1193
Signed-off-by: Nathan Chancellor
---
MAINTAINERS| 1 +
init/Kconfig | 6 +-
scripts/lld-version.sh | 20
or lib/.
>
> Link: https://github.com/ClangBuiltLinux/linux/issues/236
> Signed-off-by: Nick Desaulniers
Reviewed-by: Nathan Chancellor
Tested-by: Nathan Chancellor
> ---
> lib/asn1_decoder.c | 4 ++--
> lib/assoc_array.c | 2 +-
> lib/bootconfig.c
On Mon, Nov 16, 2020 at 05:41:58PM -0800, Nick Desaulniers wrote:
> On Fri, Nov 13, 2020 at 11:56 AM Nathan Chancellor
> wrote:
> >
> > Currently, '--orphan-handling=warn' is spread out across four different
> > architectures in their respective Makefiles, which make
com/ClangBuiltLinux/linux/issues/236
> Signed-off-by: Nick Desaulniers
Reviewed-by: Nathan Chancellor
Tested-by: Nathan Chancellor
> ---
> We could just `#include "include/linux/compiler_types.h"` in the few .c
> sources used from lib/ (there are proper header guards in
> comp
se cases.
>
> Link: https://github.com/ClangBuiltLinux/linux/issues/236
> Signed-off-by: Nick Desaulniers
Reviewed-by: Nathan Chancellor
Tested-by: Nathan Chancellor
> ---
> arch/powerpc/kernel/prom_init.c | 1 +
> arch/powerpc/kernel/uprobes.c | 1 +
> arch/powerpc/per
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