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 0722B11C83 for ; Mon, 28 Aug 2023 10:29:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7ABAAC433C7; Mon, 28 Aug 2023 10:29:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1693218587; bh=/iZ81f9LmSSrPfgZXU0hKB1BdrJkfnzZZq69Wn0+ZEw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LRlfM5444W74/2vRmSD0FzP8dVC7KHL0pHKxwmC3BXvx1zOC+14ROBzaukKveJlOV 9Mz1sAdg/wm/SJrd3Oww+l4elj6Aag5TQNhOE0wSYoYrWg9IF9E5Ua2Z8G3oaWQOeu 6+FtOHSlPn0aXMPkh/4ekDxh04p6qK/yviWFsA70= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jiaxun Yang , Thomas Bogendoerfer , Sasha Levin Subject: [PATCH 6.1 012/122] MIPS: cpu-features: Use boot_cpu_type for CPU type based features Date: Mon, 28 Aug 2023 12:12:07 +0200 Message-ID: <20230828101156.872722334@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230828101156.480754469@linuxfoundation.org> References: <20230828101156.480754469@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jiaxun Yang [ Upstream commit 5487a7b60695a92cf998350e4beac17144c91fcd ] Some CPU feature macros were using current_cpu_type to mark feature availability. However current_cpu_type will use smp_processor_id, which is prohibited under preemptable context. Since those features are all uniform on all CPUs in a SMP system, use boot_cpu_type instead of current_cpu_type to fix preemptable kernel. Cc: stable@vger.kernel.org Signed-off-by: Jiaxun Yang Signed-off-by: Thomas Bogendoerfer Signed-off-by: Sasha Levin --- arch/mips/include/asm/cpu-features.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 53c8551ec89bc..e0a4da4cfd8bc 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -125,7 +125,7 @@ ({ \ int __res; \ \ - switch (current_cpu_type()) { \ + switch (boot_cpu_type()) { \ case CPU_CAVIUM_OCTEON: \ case CPU_CAVIUM_OCTEON_PLUS: \ case CPU_CAVIUM_OCTEON2: \ @@ -368,7 +368,7 @@ ({ \ int __res; \ \ - switch (current_cpu_type()) { \ + switch (boot_cpu_type()) { \ case CPU_M14KC: \ case CPU_74K: \ case CPU_1074K: \ -- 2.40.1