From: Naresh Kamboju <naresh.kamboju@linaro.org>
To: open list <linux-kernel@vger.kernel.org>,
lkft-triage@lists.linaro.org,
Linux Regressions <regressions@lists.linux.dev>,
linuxppc-dev <linuxppc-dev@lists.ozlabs.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
Anders Roxell <anders.roxell@linaro.org>,
Dan Carpenter <dan.carpenter@linaro.org>,
clang-built-linux <llvm@lists.linux.dev>,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
"Naveen N. Rao" <naveen.n.rao@linux.ibm.com>,
"Aneesh Kumar K.V" <aneesh.kumar@kernel.org>,
Jeff Xu <jeffxu@chromium.org>, Kees Cook <keescook@chromium.org>
Subject: powerpc: io-defs.h:43:1: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic]
Date: Tue, 16 Apr 2024 15:02:52 +0530 [thread overview]
Message-ID: <CA+G9fYtEh8zmq8k8wE-8RZwW-Qr927RLTn+KqGnq1F=ptaaNsA@mail.gmail.com> (raw)
The Powerpc clang builds failed due to following warnings / errors on the
Linux next-20240416 tag.
Powerpc:
- tqm8xx_defconfig + clang-17 - Failed
- allnoconfig + clang-17 - Failed
- tinyconfig + clang-17 - Failed
Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Build log:
--------
In file included from arch/powerpc/kernel/ptrace/ptrace.c:19:
In file included from include/linux/syscalls.h:93:
In file included from include/trace/syscall.h:7:
In file included from include/linux/trace_events.h:9:
In file included from include/linux/hardirq.h:11:
In file included from arch/powerpc/include/asm/hardirq.h:6:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:14:
In file included from arch/powerpc/include/asm/io.h:672:
arch/powerpc/include/asm/io-defs.h:43:1: error: performing pointer
arithmetic on a null pointer has undefined behavior
[-Werror,-Wnull-pointer-arithmetic]
43 | DEF_PCI_AC_NORET(insb, (unsigned long p, void *b, unsigned long c),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
44 | (p, b, c), pio, p)
| ~~~~~~~~~~~~~~~~~~
Links:
- https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20240416/testrun/23495171/suite/build/test/clang-17-tqm8xx_defconfig/details/
- https://storage.tuxsuite.com/public/linaro/lkft/builds/2fAvI3mKJ0dTHcazPrLl2zNF9JO/
--
Linaro LKFT
https://lkft.linaro.org
next reply other threads:[~2024-04-16 9:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-16 9:32 Naresh Kamboju [this message]
2024-04-16 10:38 ` powerpc: io-defs.h:43:1: error: performing pointer arithmetic on a null pointer has undefined behavior [-Werror,-Wnull-pointer-arithmetic] Segher Boessenkool
2024-04-16 11:09 ` David Laight
2024-04-16 11:01 ` Arnd Bergmann
2024-04-16 11:55 ` Arnd Bergmann
2024-04-16 12:42 ` Dan Carpenter
2024-04-16 12:44 ` Arnd Bergmann
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='CA+G9fYtEh8zmq8k8wE-8RZwW-Qr927RLTn+KqGnq1F=ptaaNsA@mail.gmail.com' \
--to=naresh.kamboju@linaro.org \
--cc=anders.roxell@linaro.org \
--cc=aneesh.kumar@kernel.org \
--cc=arnd@arndb.de \
--cc=dan.carpenter@linaro.org \
--cc=jeffxu@chromium.org \
--cc=keescook@chromium.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=lkft-triage@lists.linaro.org \
--cc=llvm@lists.linux.dev \
--cc=nathan@kernel.org \
--cc=naveen.n.rao@linux.ibm.com \
--cc=ndesaulniers@google.com \
--cc=regressions@lists.linux.dev \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).