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[95.25.158.125]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5aed13770fbsm1149063e87.30.2026.07.04.02.20.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 04 Jul 2026 02:20:26 -0700 (PDT) From: Igor Putko To: ryabinin.a.a@gmail.com, glider@google.com, andreyknvl@gmail.com, dvyukov@google.com, vincenzo.frascino@arm.com, akpm@linux-foundation.org Cc: kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Igor Putko Subject: [PATCH 2/3] kasan: common: use ALIGN_DOWN macro for stack alignment Date: Sat, 4 Jul 2026 12:20:06 +0300 Message-ID: <20260704092007.3483-3-igorpetindev@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260704092007.3483-1-igorpetindev@gmail.com> References: <20260704092007.3483-1-igorpetindev@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Replace the manual bitwise alignment logic in kasan_unpoison_task_stack_below() with the standard ALIGN_DOWN macro. This improves code readability and conforms to standard kernel idioms. Signed-off-by: Igor Putko --- mm/kasan/common.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/kasan/common.c b/mm/kasan/common.c index 34aa0fdce..5faf73c8f 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -119,7 +119,7 @@ asmlinkage void kasan_unpoison_task_stack_below(const void *watermark) * because this function is called by early resume code which hasn't * yet set up the percpu register (%gs). */ - void *base = (void *)((unsigned long)watermark & ~(THREAD_SIZE - 1)); + void *base = (void *)ALIGN_DOWN((unsigned long)watermark, THREAD_SIZE); kasan_unpoison(base, watermark - base, false); } -- 2.47.3