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Tue, 9 May 2023 14:57:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1E47EC433D2; Tue, 9 May 2023 14:57:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1683644264; bh=8kpzffon4c7U76Nx4fRs+z+9nZ2f5EaWU4V5dVQ6n0Q=; h=From:To:Cc:Subject:Date:From; b=dFY7jYTxkQy1d+Wx7GQyxgjoLx5KR+hJo7zg/bSri2X5OiKl5IW9MWmOaTrXNBYIg 0Kc4YMwQkOxlpcfph8P0/BWy2Js9N5c9yClZcW5PyxEIAzhUmQqyW9U8n2LFtlglSI J0v3yNvOkhWEZbkoTUh6LjU3h5S4R4EeZbWaaXH1ZUQkmUfNwFh4eScSC98tFq6hbl REMLiZOS3AwgVri27469BI6aS9fVQFt2GrzUkERQnR7mu6VU7iHuijefB02PHBKlXZ k78UDiPbmlh0nJUzcLgK1fSmyrj1LeA1wa18MLmTANs+H+vNhRHhXiS6GUUh7gSQOK Ex2cruxneCCfg== From: Arnd Bergmann To: Andrey Ryabinin , Andrew Morton Cc: Arnd Bergmann , Alexander Potapenko , Andrey Konovalov , Dmitry Vyukov , Vincenzo Frascino , Marco Elver , kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/2] kasan: add kasan_tag_mismatch prototype Date: Tue, 9 May 2023 16:57:20 +0200 Message-Id: <20230509145735.9263-1-arnd@kernel.org> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-Stat-Signature: 33q9fw737w8u6ab9fg67hwysumac3cf9 X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 9D9DC18000C X-Rspam-User: X-HE-Tag: 1683644266-688676 X-HE-Meta: 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 3ZdBgwKC uevUq71dwihA/HCuOnW13QqilQlDJCyaAfCutISKrdnnnhg9Lby/RX/u5v2/Hqqh2JyMoISf4KlDQWIAzPEEJmyeue1f0L0+FJng2NG/U0tjf8oq+WQ4LepvqoPs4+X1a+99z317CEksBh3r+NB+DhZ2y+U3qLVgBP35O+gvAjk/1ZxMcP31PzNqOzGKHWEgaFs2Apccz1zJ4bJ1oMI9UgL7gF/TMJ8A5INtC+MwR8QfHzclUwjfNrOWZGSmRu4jhQ9ttw8YMnpbbwVQ6pUUEEKo+e88vkg4uE3W7O8F7Mbo0JFGBFm3oCMb/1nUPXvS/rt91Ao4hGIAS8ACLnjrWxSU8WULhecsLUq2gyqgzmtLNG4zzWmPgw9Zv2nZML0ttMqH57MXWbjQrvNk= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Arnd Bergmann The kasan sw-tags implementation contains one function that is only called from assembler and has no prototype in a header. This causes a W=1 warning: mm/kasan/sw_tags.c:171:6: warning: no previous prototype for 'kasan_tag_mismatch' [-Wmissing-prototypes] 171 | void kasan_tag_mismatch(unsigned long addr, unsigned long access_info, Add a prototype in the local header to get a clean build. Signed-off-by: Arnd Bergmann --- mm/kasan/kasan.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index f5e4f5f2ba20..cd846ca34f44 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -646,4 +646,7 @@ void *__hwasan_memset(void *addr, int c, size_t len); void *__hwasan_memmove(void *dest, const void *src, size_t len); void *__hwasan_memcpy(void *dest, const void *src, size_t len); +void kasan_tag_mismatch(unsigned long addr, unsigned long access_info, + unsigned long ret_ip); + #endif /* __MM_KASAN_KASAN_H */