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 16122155A24; Sun, 1 Sep 2024 16:20:39 +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=1725207639; cv=none; b=Kk2fjkjeNIHdd4Xp07W/GsYAbjMnVW3fWBQNwbhdKk4Hu15gkiGVvvqjSMItZ8eeuRjA2ef6Y6iNyEHBRHak/SMg/P1xE8NxPHrSVOhiFsWiz9jxa3xiTuffQoX8mgFzhZwKqISH48PZFz9EaRjTRUi36eWda+d4kebmDlcUKrE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725207639; c=relaxed/simple; bh=/F35yBG868jOTvALTqTD5WLAGig2f1APXqrJkPRsybc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CGjPyYFB6liergqqa/A0uS4cmefSFpZ3YxW6J3XjSvXOacbvZikcqfs7qAxnyuwxsHTRLd0ZD5kTILd/UOVRYfcgcGOZn/PjV2DK0TLpUIYgNTV+UxmmNV0Ss4W183+86cLk5rx9V+kZaLKpsnwCv1BrSmMlqcH6HiSira6x1kE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0tPWLRQV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="0tPWLRQV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 79169C4CEC3; Sun, 1 Sep 2024 16:20:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1725207639; bh=/F35yBG868jOTvALTqTD5WLAGig2f1APXqrJkPRsybc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0tPWLRQVytiHJ4leA1QwPHPe6lHOyC+3HTYI4mCYuHH7miug0h4cTulxLhUZboNWZ Ipb+5jHHpqcr0h3oW2Bfvcq2P7PAQXubj0aKx7SBHTs+IAen0gsmCa/KRYn62a1Rbq 0HJptwedduFXYYWfkQh6pS6n7oAA874Jg40kPg9I= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Helge Deller , Sasha Levin Subject: [PATCH 4.19 33/98] parisc: Use irq_enter_rcu() to fix warning at kernel/context_tracking.c:367 Date: Sun, 1 Sep 2024 18:16:03 +0200 Message-ID: <20240901160804.947327822@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240901160803.673617007@linuxfoundation.org> References: <20240901160803.673617007@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 4.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Helge Deller [ Upstream commit 73cb4a2d8d7e0259f94046116727084f21e4599f ] Use irq*_rcu() functions to fix this kernel warning: WARNING: CPU: 0 PID: 0 at kernel/context_tracking.c:367 ct_irq_enter+0xa0/0xd0 Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.7.0-rc3-64bit+ #1037 Hardware name: 9000/785/C3700 IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000412cd758 00000000412cd75c IIR: 03ffe01f ISR: 0000000000000000 IOR: 0000000043c20c20 CPU: 0 CR30: 0000000041caa000 CR31: 0000000000000000 ORIG_R28: 0000000000000005 IAOQ[0]: ct_irq_enter+0xa0/0xd0 IAOQ[1]: ct_irq_enter+0xa4/0xd0 RP(r2): irq_enter+0x34/0x68 Backtrace: [<000000004034a3ec>] irq_enter+0x34/0x68 [<000000004030dc48>] do_cpu_irq_mask+0xc0/0x450 [<0000000040303070>] intr_return+0x0/0xc Signed-off-by: Helge Deller Signed-off-by: Sasha Levin --- arch/parisc/kernel/irq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c index 11c1505775f87..6b20a0a11913b 100644 --- a/arch/parisc/kernel/irq.c +++ b/arch/parisc/kernel/irq.c @@ -524,7 +524,7 @@ void do_cpu_irq_mask(struct pt_regs *regs) old_regs = set_irq_regs(regs); local_irq_disable(); - irq_enter(); + irq_enter_rcu(); eirr_val = mfctl(23) & cpu_eiem & per_cpu(local_ack_eiem, cpu); if (!eirr_val) @@ -559,7 +559,7 @@ void do_cpu_irq_mask(struct pt_regs *regs) #endif /* CONFIG_IRQSTACKS */ out: - irq_exit(); + irq_exit_rcu(); set_irq_regs(old_regs); return; -- 2.43.0