From: Paul Burton <paul.burton@mips.com>
To: Nathan Chancellor <natechancellor@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>,
Paul Burton <pburton@wavecomp.com>,
James Hogan <jhogan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
"linux-mips@vger.kernel.org" <linux-mips@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"clang-built-linux@googlegroups.com"
<clang-built-linux@googlegroups.com>,
Nathan Chancellor <natechancellor@gmail.com>,
"linux-mips@vger.kernel.org" <linux-mips@vger.kernel.org>
Subject: Re: [PATCH 5/5] MIPS: tlbex: Explicitly cast _PAGE_NO_EXEC to a boolean
Date: Mon, 12 Aug 2019 04:47:24 +0000
Message-ID: <MWHPR2201MB1277133CC3B57F621F359C42C1D30@MWHPR2201MB1277.namprd22.prod.outlook.com> (raw)
In-Reply-To: <20190812033120.43013-6-natechancellor@gmail.com>
Hello,
Nathan Chancellor wrote:
> clang warns:
>
> arch/mips/mm/tlbex.c:634:19: error: use of logical '&&' with constant
> operand [-Werror,-Wconstant-logical-operand]
> if (cpu_has_rixi && _PAGE_NO_EXEC) {
> ^ ~~~~~~~~~~~~~
> arch/mips/mm/tlbex.c:634:19: note: use '&' for a bitwise operation
> if (cpu_has_rixi && _PAGE_NO_EXEC) {
> ^~
> &
> arch/mips/mm/tlbex.c:634:19: note: remove constant to silence this
> warning
> if (cpu_has_rixi && _PAGE_NO_EXEC) {
> ~^~~~~~~~~~~~~~~~
> 1 error generated.
>
> Explicitly cast this value to a boolean so that clang understands we
> intend for this to be a non-zero value.
>
> Fixes: 00bf1c691d08 ("MIPS: tlbex: Avoid placing software PTE bits in Entry* PFN fields")
Applied to mips-next.
> commit c59ae0a10551
> https://git.kernel.org/mips/c/c59ae0a10551
>
> Fixes: 00bf1c691d08 ("MIPS: tlbex: Avoid placing software PTE bits in Entry* PFN fields")
> Link: https://github.com/ClangBuiltLinux/linux/issues/609
> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
> Signed-off-by: Paul Burton <paul.burton@mips.com>
Thanks,
Paul
[ This message was auto-generated; if you believe anything is incorrect
then please email paul.burton@mips.com to report it. ]
prev parent reply index
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-12 3:31 [PATCH 0/5] Clang build fixes for MIPS Nathan Chancellor
2019-08-12 3:31 ` [PATCH 1/5] MIPS: Don't use bc_false uninitialized in __mm_isBranchInstr Nathan Chancellor
2019-08-12 4:47 ` Paul Burton
2019-08-12 3:31 ` [PATCH 2/5] MIPS/ptrace: Update mips_get_syscall_arg's return type Nathan Chancellor
2019-08-12 4:47 ` Paul Burton
2019-08-12 3:31 ` [PATCH 3/5] lib/mpi: Fix for building for MIPS32 with Clang Nathan Chancellor
2019-08-12 5:23 ` Nathan Chancellor
2019-08-12 5:26 ` Nathan Chancellor
2019-08-12 12:28 ` Herbert Xu
2019-08-12 17:58 ` Paul Burton
2019-08-12 7:35 ` Jussi Kivilinna
2019-08-12 17:14 ` Nathan Chancellor
2019-08-12 19:40 ` Jussi Kivilinna
2019-08-12 19:45 ` Nathan Chancellor
2019-08-12 3:31 ` [PATCH 4/5] lib/mpi: Fix for building for MIPS64 " Nathan Chancellor
2019-08-12 5:25 ` Nathan Chancellor
2019-08-12 17:42 ` Nick Desaulniers
2019-08-12 17:45 ` Nathan Chancellor
2019-08-12 3:31 ` [PATCH 5/5] MIPS: tlbex: Explicitly cast _PAGE_NO_EXEC to a boolean Nathan Chancellor
2019-08-12 4:47 ` Paul Burton [this message]
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=MWHPR2201MB1277133CC3B57F621F359C42C1D30@MWHPR2201MB1277.namprd22.prod.outlook.com \
--to=paul.burton@mips.com \
--cc=clang-built-linux@googlegroups.com \
--cc=jhogan@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mips@vger.kernel.org \
--cc=natechancellor@gmail.com \
--cc=ndesaulniers@google.com \
--cc=pburton@wavecomp.com \
--cc=ralf@linux-mips.org \
/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
Linux-MIPS Archive on lore.kernel.org
Archives are clonable:
git clone --mirror https://lore.kernel.org/linux-mips/0 linux-mips/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 linux-mips linux-mips/ https://lore.kernel.org/linux-mips \
linux-mips@vger.kernel.org
public-inbox-index linux-mips
Example config snippet for mirrors
Newsgroup available over NNTP:
nntp://nntp.lore.kernel.org/org.kernel.vger.linux-mips
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git