From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EA1C8C43458 for ; Tue, 30 Jun 2026 15:04:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=gtqB9mezKTg+OQcXDBwUw9rJykKN1mXsuNTnnqkVgJw=; b=syZYWV+5J/j83w Xc2PrTqoPk+PQsgdv2eMdZF+nXwFgTj5t12hKv8KTzchz4bGmB+hetty1lnCHp9kQE6pcm8MD5aWh rOpaGlzSTJQVNiHewuyVep0pEdvRjCFPx1HEMq812DpxIWvyR0NmJQ/389w5LuAtb3ocK5G1FKFhq TLqIBEtU3nJQefoE4YlSze0+1iOcxSIzdeqfRE79twKsM1Zuzon2Tw2sLPIp79MeLY62nDIIpWeyG Aw/JutkBjayC6N2SWmzPTIZ4ZLUOoPPOHHqq8S/mrbIAYbE1yHgKe6gNk45/YLzg+Zgp0bBtaZXbs DFrKZX7JV9v0NZRqRbJg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wea14-0000000HKTV-0eTJ; Tue, 30 Jun 2026 15:04:50 +0000 Received: from mail-pl1-x633.google.com ([2607:f8b0:4864:20::633]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wea10-0000000HKRw-3HCS for linux-riscv@lists.infradead.org; Tue, 30 Jun 2026 15:04:48 +0000 Received: by mail-pl1-x633.google.com with SMTP id d9443c01a7336-2c9e9a8af98so13181615ad.0 for ; Tue, 30 Jun 2026 08:04:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1782831886; x=1783436686; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=a/OCyHXptIZem7abs2ebHUlpV5sUt3WFWdltwFGFKKo=; b=VCO+/gdmrBFNMSbfxTYLWdo9y1P7uztcPI+J7I3eS/Om9nDNSw5CwEqWsstGEYMhea +lhxNMTHfZgwLwQqbNJ8NF7ihE4HtOwQ6byTj1A56npcWYWvwuyYuIILKn82sPpTLbSU vRQSqPMtdC7++oszjoVhy3x2wVD/y0iceCZgLxELvDXJg9a7axmVkw1kiD5+6B8EGUF8 ZYg4okFKBuHyJLzRVThQ2TdLp1s/J9PEom64wgKzpaYwR3gr5pMjNYRHZTczZBOAoHkY pArbqGeh/uP7qwpUE5ddndflFMcRQk89kF80IRgMg7c7m88Z7R+ofGxYtf/AyBrSDoAq c+zg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782831886; x=1783436686; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=a/OCyHXptIZem7abs2ebHUlpV5sUt3WFWdltwFGFKKo=; b=R/8tiUeqdbqZ6sqcC6OaZaPfQkQh1WLfuNcj5+P8mwHAyyNN3P8ajTpzfTMuDvciA2 hw0Fuhe315o/tREQmSz2jzcTB9Hhd9vsuWCfDZ06X9hwWxN2OgINOv0YVZvNgFaDNBCD cTGKW6lNwycgi/6AhOB2w4ZL9QH+OAyCiInLs+Rg14joiPH60QrM2snM4Kfi3Ix/bI+s y5n3ZqVAVI5ofxkflqI060FrZSVJ1Sx3vTZOXSTrHwGgXfiP7sAeI+n0+iz9Gix7qSw7 ExwffkPG8uzt4bbImDe2cFAEF6XZA3uOh80l7m5xIikFdSp1efRa8zYx59NnEMhSNWBj bZWA== X-Forwarded-Encrypted: i=1; AHgh+RrA0Z803kYCopplopJueO4kLpEMFLjSuK5k0kLUZLHCjR8AZZKlkt64pMC5EEbBSjR+cgOWOrd1rBWDzA==@lists.infradead.org X-Gm-Message-State: AOJu0YxwnTwe0GjQXHXrvCnZxyGekirydJHkThvJRb/PZzZPvFy6tV1w 45QA/E/5c3EHrWg90knSWc+g9/5MyYNZ+vcHqolWTFl+Y5ZpzYPG4dCK X-Gm-Gg: AfdE7cknE/3/6GvsqCbT3w/fERKIkfFxiv/GhSwPgjU/mPg7yR3d6vLnigrYMiL37Vr T5Vli+Cc8wiMnOTG6pGcp1X1Lvbjk3RxfVZtWqiLoNdtB8RkBfnlSjYg5ZN0g0unZ/LfQokU7wT qu+Z8Z+n8QEkVn5nhvzlsEPjSLninLOUj4CjnrjvTfPB3UpV4YOOFP0o7JrMX/3FX2K18OxRAp0 cxOWYflH3ydqlz58f3J5eqIvE8wTkGEDivZd29DOLuUcJtvRaIdMJ9oBmfGsK+meg5iI7o980Ki f2l9DRthXDXS8TcbmF6dmPYkCq/0Fbf7ycABZE0m+h922HguZeEuvH8MCc50CUZV4X5PVyCUDuz CCnzzjCqzKXOVqoj75ioue5d0Mt+ZcymOz38TkorwpKPBcFdp4JLmufn14iB4iICOLF5wiQVn33 iQMV7Bh+Y= X-Received: by 2002:a17:903:2b03:b0:2ca:de3:15e1 with SMTP id d9443c01a7336-2ca2e713ebcmr29887815ad.31.1782831885805; Tue, 30 Jun 2026 08:04:45 -0700 (PDT) Received: from ubuntu.. ([110.9.142.4]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ca37a70bc0sm16250465ad.10.2026.06.30.08.04.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Jun 2026 08:04:45 -0700 (PDT) From: Sang-Heon Jeon To: rppt@kernel.org, Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: linux-mm@kvack.org, Sang-Heon Jeon , Alexandre Ghiti , linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Charlie Jenkins Subject: [PATCH v3 3/8] riscv: remove unreachable invalid range check in create_linear_mapping_page_table() Date: Wed, 1 Jul 2026 00:04:08 +0900 Message-ID: <20260630150413.1718632-4-ekffu200098@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260630150413.1718632-1-ekffu200098@gmail.com> References: <20260630150413.1718632-1-ekffu200098@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260630_080447_111894_3E433577 X-CRM114-Status: UNSURE ( 9.26 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org create_linear_mapping_page_table() iterates memblock regions with for_each_mem_range() and breaks the loop when start >= end. for_each_mem_range() never returns an invalid range, so start < end always. Therefore the start >= end check is unreachable, so remove it. No functional change. Signed-off-by: Sang-Heon Jeon Reviewed-by: Charlie Jenkins Tested-by: Charlie Jenkins --- arch/riscv/mm/init.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 5b1b3c88b4d1..eb93c2ac05a6 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -1229,8 +1229,6 @@ static void __init create_linear_mapping_page_table(void) /* Map all memory banks in the linear mapping */ for_each_mem_range(i, &start, &end) { - if (start >= end) - break; if (start <= __pa(PAGE_OFFSET) && __pa(PAGE_OFFSET) < end) start = __pa(PAGE_OFFSET); -- 2.43.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv