From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pg0-f71.google.com (mail-pg0-f71.google.com [74.125.83.71]) by kanga.kvack.org (Postfix) with ESMTP id 6CD8D6B02E1 for ; Mon, 15 May 2017 21:17:39 -0400 (EDT) Received: by mail-pg0-f71.google.com with SMTP id u21so124276284pgn.5 for ; Mon, 15 May 2017 18:17:39 -0700 (PDT) Received: from mail-pg0-x242.google.com (mail-pg0-x242.google.com. [2607:f8b0:400e:c05::242]) by mx.google.com with ESMTPS id 24si11981670pgy.279.2017.05.15.18.17.38 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 15 May 2017 18:17:38 -0700 (PDT) Received: by mail-pg0-x242.google.com with SMTP id s62so19214554pgc.0 for ; Mon, 15 May 2017 18:17:38 -0700 (PDT) From: js1304@gmail.com Subject: [PATCH v1 01/11] mm/kasan: rename XXX_is_zero to XXX_is_nonzero Date: Tue, 16 May 2017 10:16:39 +0900 Message-Id: <1494897409-14408-2-git-send-email-iamjoonsoo.kim@lge.com> In-Reply-To: <1494897409-14408-1-git-send-email-iamjoonsoo.kim@lge.com> References: <1494897409-14408-1-git-send-email-iamjoonsoo.kim@lge.com> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Andrey Ryabinin , Alexander Potapenko , Dmitry Vyukov , kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Thomas Gleixner , Ingo Molnar , "H . Peter Anvin" , kernel-team@lge.com, Joonsoo Kim From: Joonsoo Kim They return positive value, that is, true, if non-zero value is found. Rename them to reduce confusion. Signed-off-by: Joonsoo Kim --- mm/kasan/kasan.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c index c81549d..85ee45b0 100644 --- a/mm/kasan/kasan.c +++ b/mm/kasan/kasan.c @@ -224,7 +224,7 @@ static __always_inline bool memory_is_poisoned_16(unsigned long addr) return false; } -static __always_inline unsigned long bytes_is_zero(const u8 *start, +static __always_inline unsigned long bytes_is_nonzero(const u8 *start, size_t size) { while (size) { @@ -237,7 +237,7 @@ static __always_inline unsigned long bytes_is_zero(const u8 *start, return 0; } -static __always_inline unsigned long memory_is_zero(const void *start, +static __always_inline unsigned long memory_is_nonzero(const void *start, const void *end) { unsigned int words; @@ -245,11 +245,11 @@ static __always_inline unsigned long memory_is_zero(const void *start, unsigned int prefix = (unsigned long)start % 8; if (end - start <= 16) - return bytes_is_zero(start, end - start); + return bytes_is_nonzero(start, end - start); if (prefix) { prefix = 8 - prefix; - ret = bytes_is_zero(start, prefix); + ret = bytes_is_nonzero(start, prefix); if (unlikely(ret)) return ret; start += prefix; @@ -258,12 +258,12 @@ static __always_inline unsigned long memory_is_zero(const void *start, words = (end - start) / 8; while (words) { if (unlikely(*(u64 *)start)) - return bytes_is_zero(start, 8); + return bytes_is_nonzero(start, 8); start += 8; words--; } - return bytes_is_zero(start, (end - start) % 8); + return bytes_is_nonzero(start, (end - start) % 8); } static __always_inline bool memory_is_poisoned_n(unsigned long addr, @@ -271,7 +271,7 @@ static __always_inline bool memory_is_poisoned_n(unsigned long addr, { unsigned long ret; - ret = memory_is_zero(kasan_mem_to_shadow((void *)addr), + ret = memory_is_nonzero(kasan_mem_to_shadow((void *)addr), kasan_mem_to_shadow((void *)addr + size - 1) + 1); if (unlikely(ret)) { -- 2.7.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org