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([110.9.142.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2d704b9f555sm18725405ad.40.2026.08.27.07.54.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Aug 2026 07:54:50 -0700 (PDT) From: Sang-Heon Jeon To: "David S. Miller" , Andreas Larsson Cc: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org Subject: [PATCH 1/2] sparc32: remove redundant memset in arch_mm_preinit() Date: Thu, 27 Aug 2026 23:54:33 +0900 Message-ID: <20260827145437.490605-2-ekffu200098@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260827145437.490605-1-ekffu200098@gmail.com> References: <20260827145437.490605-1-ekffu200098@gmail.com> Precedence: bulk X-Mailing-List: sparclinux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DMARC_PASS,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=disabled version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on gandalf.ozlabs.org memblock_alloc() returns zeroed memory, so the memset after the allocation is redundant. No functional change. Signed-off-by: Sang-Heon Jeon --- arch/sparc/mm/init_32.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index e0e66f91ceeb..b4f31d41d665 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -255,7 +255,6 @@ void __init arch_mm_preinit(void) prom_printf("mem_init: Cannot alloc valid_addr_bitmap.\n"); prom_halt(); } - memset(sparc_valid_addr_bitmap, 0, i << 2); taint_real_pages(); } From patchwork Thu Aug 27 14:54:34 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sang-Heon Jeon X-Patchwork-Id: 2293523 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20251104 header.b=GY/UmWFr; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org (client-ip=2404:9400:2221:ea00::3; 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([110.9.142.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2d704b9f555sm18725405ad.40.2026.08.27.07.54.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Aug 2026 07:54:52 -0700 (PDT) From: Sang-Heon Jeon To: "David S. Miller" , Andreas Larsson Cc: linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org Subject: [PATCH 2/2] sparc32: remove redundant memset in srmmu_nocache_init() Date: Thu, 27 Aug 2026 23:54:34 +0900 Message-ID: <20260827145437.490605-3-ekffu200098@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260827145437.490605-1-ekffu200098@gmail.com> References: <20260827145437.490605-1-ekffu200098@gmail.com> Precedence: bulk X-Mailing-List: sparclinux@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,DMARC_PASS,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=disabled version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-25) on gandalf.ozlabs.org memblock_alloc_or_panic() returns zeroed memory, so the memset after the allocation is redundant. No functional change. Signed-off-by: Sang-Heon Jeon --- arch/sparc/mm/srmmu.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index 9a74902ad181..f9a92a07a255 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -279,7 +279,6 @@ static void __init srmmu_nocache_init(void) srmmu_nocache_pool = memblock_alloc_or_panic(srmmu_nocache_size, SRMMU_NOCACHE_ALIGN_MAX); - memset(srmmu_nocache_pool, 0, srmmu_nocache_size); srmmu_nocache_bitmap = memblock_alloc_or_panic(BITS_TO_LONGS(bitmap_bits) * sizeof(long),