From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6B8F51E00A8; Tue, 3 Sep 2024 20:48:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725396536; cv=none; b=YweT0y2KldxvXP+NoSo83LL1DgAwp+EkzdnAD6MiUzE41hYW3rkSt2DcUi4k/3EgpLlK6rzTfsKjOw3/1iBRzE4+kCQ/t5FJ54/SDNrRxfLL/mXCKPkYCefDATzH6/4IEgQc5g1nBxRBFcpw9IJW68Q+gBQdy5lX6/jVFUcROb0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725396536; c=relaxed/simple; bh=2XtHz/rQ4CCWbgyHLp/jcUC6gGYyzYBnsyYBXuxUbos=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qJaLAZjr5XyZ/HQRL8L/M8fZL7gusslwa5XH4ygarTOXgcWsiBPRB9GNOgbUm1tF2OfuO/dF448Vti8MIZEtR12/FLI+EX3hDtkuoxzVPD5eDlP8c4k0p7KBQB/fpWgFeWXUMaiURY9LhQIKEfbdJHCzryj+i83Bou8SnsSr7pE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=dqZidICv; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="dqZidICv" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 737B4C4CEC5; Tue, 3 Sep 2024 20:48:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1725396536; bh=2XtHz/rQ4CCWbgyHLp/jcUC6gGYyzYBnsyYBXuxUbos=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dqZidICvmqUypB93llua6HSB0MCr8T5iHQZGMl+NFaKSt5LOXiMSOYutBf3CnBVX8 jd/0XQxUpIl6qa8e3WIROWQCLCkv58lyABeDbXFB4FngLKfifI4sgPZylXtOVocwsB yVUTx8tNKLgzWmFPJaypJBNg2psoWKToD0STkK8RhqBdDWKVD36/Vp/p1Nmq8L7v+4 gyXW/Qk4cXFA69raqgD6yJh9XjojyFOy3pl/7FpHHJluwzj3YFin16LeuIb/VWjOSf 54ETflNw161rlqcXtVqd0W+MSmy0hfnhwTz/YmcQ9OHT5kKGHk6A/vU0wEJL2YPnNJ L3ybVDwfZYhzg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Mike Rapoport , Guenter Roeck , Wei Yang , Sasha Levin , monstr@monstr.eu Subject: [PATCH AUTOSEL 4.19 3/6] microblaze: don't treat zero reserved memory regions as error Date: Tue, 3 Sep 2024 15:29:23 -0400 Message-ID: <20240903192937.1109185-3-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240903192937.1109185-1-sashal@kernel.org> References: <20240903192937.1109185-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 4.19.320 Content-Transfer-Encoding: 8bit From: Mike Rapoport [ Upstream commit 0075df288dd8a7abfe03b3766176c393063591dd ] Before commit 721f4a6526da ("mm/memblock: remove empty dummy entry") the check for non-zero of memblock.reserved.cnt in mmu_init() would always be true either because memblock.reserved.cnt is initialized to 1 or because there were memory reservations earlier. The removal of dummy empty entry in memblock caused this check to fail because now memblock.reserved.cnt is initialized to 0. Remove the check for non-zero of memblock.reserved.cnt because it's perfectly fine to have an empty memblock.reserved array that early in boot. Reported-by: Guenter Roeck Signed-off-by: Mike Rapoport Reviewed-by: Wei Yang Tested-by: Guenter Roeck Link: https://lore.kernel.org/r/20240729053327.4091459-1-rppt@kernel.org Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin --- arch/microblaze/mm/init.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index df6de7ccdc2eb..ecad6d8b9154b 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -289,11 +289,6 @@ asmlinkage void __init mmu_init(void) { unsigned int kstart, ksize; - if (!memblock.reserved.cnt) { - pr_emerg("Error memory count\n"); - machine_restart(NULL); - } - if ((u32) memblock.memory.regions[0].size < 0x400000) { pr_emerg("Memory must be greater than 4MB\n"); machine_restart(NULL); -- 2.43.0