From: Paul Burton <paul.burton@mips.com>
To: <linux-kbuild@vger.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
<linux-mips@linux-mips.org>, Arnd Bergmann <arnd@arndb.de>,
Ingo Molnar <mingo@kernel.org>, Matthew Wilcox <matthew@wil.cx>,
Thomas Gleixner <tglx@linutronix.de>,
Douglas Anderson <dianders@chromium.org>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Matthias Kaehlcke <mka@chromium.org>,
He Zhe <zhe.he@windriver.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Michal Marek <michal.lkml@markovi.net>,
Khem Raj <raj.khem@gmail.com>,
Christophe Leroy <christophe.leroy@c-s.fr>,
Al Viro <viro@zeniv.linux.org.uk>,
Stafford Horne <shorne@gmail.com>,
Gideon Israel Dsouza <gidisrael@gmail.com>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
Kees Cook <keescook@chromium.org>,
Michael Ellerman <mpe@ellerman.id.au>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
<linux-kernel@vger.kernel.org>, Paul Mackerras <paulus@samba.org>,
<linuxppc-dev@lists.ozlabs.org>,
Paul Burton <paul.burton@mips.com>
Subject: [PATCH v2 0/3] Resolve -Wattribute-alias warnings from SYSCALL_DEFINEx()
Date: Tue, 19 Jun 2018 13:14:55 -0700 [thread overview]
Message-ID: <20180619201458.4559-1-paul.burton@mips.com> (raw)
In-Reply-To: <20180619190225.7eguhiw3ixaiwpgl@pburton-laptop>
This series introduces infrastructure allowing compiler diagnostics to
be disabled or their severity modified for specific pieces of code, with
suitable abstractions to prevent that code from becoming tied to a
specific compiler.
This infrastructure is then used to disable the -Wattribute-alias
warning around syscall definitions, which rely on type mismatches to
sanitize arguments.
Finally PowerPC-specific #pragma's are removed now that the generic code
is handling this.
The series takes Arnd's RFC patches & addresses the review comments they
received. The most notable effect of this series to to avoid warnings &
build failures caused by -Wattribute-alias when compiling the kernel
with GCC 8.
Applies cleanly atop v4.18-rc1.
Thanks,
Paul
Arnd Bergmann (2):
kbuild: add macro for controlling warnings to linux/compiler.h
disable -Wattribute-alias warning for SYSCALL_DEFINEx()
Paul Burton (1):
powerpc: Remove -Wattribute-alias pragmas
arch/powerpc/kernel/pci_32.c | 4 ----
arch/powerpc/kernel/pci_64.c | 4 ----
arch/powerpc/kernel/rtas.c | 4 ----
arch/powerpc/kernel/signal_32.c | 8 --------
arch/powerpc/kernel/signal_64.c | 4 ----
arch/powerpc/kernel/syscalls.c | 4 ----
arch/powerpc/mm/subpage-prot.c | 4 ----
include/linux/compat.h | 8 +++++++-
include/linux/compiler-gcc.h | 27 +++++++++++++++++++++++++++
include/linux/compiler_types.h | 18 ++++++++++++++++++
include/linux/syscalls.h | 4 ++++
11 files changed, 56 insertions(+), 33 deletions(-)
--
2.17.1
next prev parent reply other threads:[~2018-06-19 20:15 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-16 0:53 [PATCH 0/3] Resolve -Wattribute-alias warnings from SYSCALL_DEFINEx() Paul Burton
2018-06-16 0:53 ` [PATCH 1/3] kbuild: add macro for controlling warnings to linux/compiler.h Paul Burton
2018-06-18 7:01 ` Christophe LEROY
2018-06-19 17:34 ` Masahiro Yamada
2018-06-19 19:02 ` Paul Burton
2018-06-19 20:14 ` Paul Burton [this message]
2018-06-19 20:14 ` [PATCH v2 " Paul Burton
2018-06-20 23:17 ` Masahiro Yamada
2018-06-19 20:14 ` [PATCH v2 2/3] disable -Wattribute-alias warning for SYSCALL_DEFINEx() Paul Burton
2018-06-19 20:14 ` [PATCH v2 3/3] powerpc: Remove -Wattribute-alias pragmas Paul Burton
2018-06-20 13:40 ` Christophe LEROY
2018-06-23 8:40 ` [PATCH v2 0/3] Resolve -Wattribute-alias warnings from SYSCALL_DEFINEx() Masahiro Yamada
2018-06-20 23:21 ` [PATCH 1/3] kbuild: add macro for controlling warnings to linux/compiler.h Masahiro Yamada
2018-06-21 0:02 ` Paul Burton
2018-06-16 0:53 ` [PATCH 2/3] disable -Wattribute-alias warning for SYSCALL_DEFINEx() Paul Burton
2018-06-18 7:01 ` Christophe LEROY
2018-06-16 0:53 ` [PATCH 3/3] Revert "powerpc: fix build failure by disabling attribute-alias warning in pci_32" Paul Burton
2018-06-18 7:01 ` Christophe LEROY
2018-06-19 13:01 ` Michael Ellerman
2018-06-17 1:11 ` [PATCH 0/3] Resolve -Wattribute-alias warnings from SYSCALL_DEFINEx() Stafford Horne
2018-06-18 7:00 ` Christophe LEROY
2018-06-18 13:05 ` Arnd Bergmann
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