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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=l6ZIwvY6syyAP67b2MO5JHAbeJPBE9lyCC+sGAziw0Y=; b=MM4SJe6vBFeTkvVOhNB127iCuc569S343X5x/M+6C/6dFHtgr40c59bMx+eAyZ5OLY cQ4vAQFDBy1Z9y1endalI8FMl31a7ZCn/JTDI4sPLjsI/XuweSChDFc22xQBQ+0BFExy 2h//NnQaRi76AfLcf8TMpJLfWneNDYpB9ORiw00DY11W81wC8AUknk5PUfin4ekLKtc2 DLVAsXpEcEo8NLUaiOnu0p6J9JyuNWyRhLd6gtk0T6sQcmoK/6I24eh8ZUh+w2Bo9D2A rYZm2cTtGUT2yrcHayNT+Y/Tznqxoig0LQFNr89BU5EbI79zMoVYleCHpqudr8iYTiN3 xmgQ== X-Gm-Message-State: AOAM532hMAzc2kw99YggjuSzckvCXb5DP7uPRceuiBHDaG6K6wsp2y9s 3tyTB+5sl4MhgJnYJ2++3G+Dr4py8RB/kBr6 X-Google-Smtp-Source: ABdhPJy3uOE8d50CkEhPANU8s2DSDIvcOJG7lmvrwT9uA8T2s4Kv8enADBz7gFdwS2uXrMPjd1s0rvPxNPa2NPmj X-Received: by 2002:a05:6214:1841:: with SMTP id d1mr3456365qvy.135.1597426081697; Fri, 14 Aug 2020 10:28:01 -0700 (PDT) Date: Fri, 14 Aug 2020 19:26:58 +0200 In-Reply-To: Message-Id: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.28.0.220.ged08abb693-goog Subject: [PATCH 16/35] kasan: kasan_non_canonical_hook only for software modes From: Andrey Konovalov To: Dmitry Vyukov , Vincenzo Frascino , Catalin Marinas , kasan-dev@googlegroups.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200814_132805_550618_4E300D0A X-CRM114-Status: GOOD ( 12.69 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marco Elver , Elena Petrova , Andrey Konovalov , Kevin Brodsky , Will Deacon , Branislav Rankov , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Alexander Potapenko , linux-arm-kernel@lists.infradead.org, Andrey Ryabinin , Andrew Morton , Evgenii Stepanov Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This is a preparatory commit for the upcoming addition of a new hardware tag-based (MTE-based) KASAN mode. kasan_non_canonical_hook() is only applicable to KASAN modes that use shadow memory, and won't be needed for hardware tag-based KASAN. No functional changes for software modes. Signed-off-by: Andrey Konovalov --- mm/kasan/report.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/mm/kasan/report.c b/mm/kasan/report.c index 8ad1ced1607d..2cce7c9beea3 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -376,7 +376,8 @@ bool kasan_report(unsigned long addr, size_t size, bool is_write, return ret; } -#ifdef CONFIG_KASAN_INLINE +#if (defined(CONFIG_KASAN_GENERIC) || defined(CONFIG_KASAN_SW_TAGS)) && \ + defined(CONFIG_KASAN_INLINE) /* * With CONFIG_KASAN_INLINE, accesses to bogus pointers (outside the high * canonical half of the address space) cause out-of-bounds shadow memory reads -- 2.28.0.220.ged08abb693-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel