Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Thu, 29 Apr 2021 11:17:16 -0700
In-Reply-To: <20210429150940.3256656-1-arnd@kernel.org>
Message-Id: <20210429181716.2409874-1-ndesaulniers@google.com>
Mime-Version: 1.0
References: <20210429150940.3256656-1-arnd@kernel.org>
Subject: Re: [PATCH] smp: fix smp_call_function_single_async prototype
From:   Nick Desaulniers <ndesaulniers@google.com>
To:     arnd@kernel.org
Cc:     arnd@arndb.de, axboe@kernel.dk, bp@suse.de, eric.dumazet@gmail.com,
        jgross@suse.com, jiancai@google.com, linux-kernel@vger.kernel.org,
        linux@roeck-us.net, mpe@ellerman.id.au, peterz@infradead.org,
        tglx@linutronix.de, ying.huang@intel.com,
        Nathan Chancellor <nathan@kernel.org>,
        clang-built-linux@googlegroups.com
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

(replying manually to
https://lore.kernel.org/lkml/20210429150940.3256656-1-arnd@kernel.org/)

Thanks for the patch; with this applied I observe the following new warnings
though (for x86_64 defconfig; make LLVM=1 LLVM_IAS=1 -j72)

kernel/smp.c:515:19: warning: passing 8-byte aligned argument to 32-byte
aligned parameter 1 of 'csd_lock_record' may result in an unaligned pointer
access [-Walign-mismatch]
                csd_lock_record(csd);
                                ^
kernel/smp.c:516:14: warning: passing 8-byte aligned argument to 32-byte
aligned parameter 1 of 'csd_unlock' may result in an unaligned pointer access
[-Walign-mismatch]
                csd_unlock(csd);
                           ^
kernel/smp.c:525:14: warning: passing 8-byte aligned argument to 32-byte
aligned parameter 1 of 'csd_unlock' may result in an unaligned pointer access
[-Walign-mismatch]
                csd_unlock(csd);
                           ^