From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 8ABE53DB324; Mon, 17 Aug 2026 15:22:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786980123; cv=none; b=DarNNIXYWK+BnWfO5xicA4HlXLFQQU9Q+XxKBYy5HsX+7RikKnKi5IlOcfzu0uFet66Y9WUMMk7h4Ch7OHFqBe0Wzl2XOeZiwdcKCvje3moENP8iIjuqbsJ+pVbpq1d9dv0i92aZI0EYa0UQq6EdgpNoaVJaCR+GY/1T26WTiWA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786980123; c=relaxed/simple; bh=dG/C6zBKF4Wczk3Rz3D8d21Wo7y15GDyZai2EuYx77c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VyEjGV1eKkIPQYHE7UB30tg79Mxma3DFWxrojPcgTYFQCp3sWCj9TQgzlazT2s0FLMaGA1nVp0qmWCa4Xs0zi8R09CEAZSFHebZqFzfPbnbaS3STmPL5Ym9FVTHrAKlf+4WGKe1XAkmgOLHyBaWdxkn/9/9ugWzEXAQGziORUXQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=NeDVyrvi; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="NeDVyrvi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E457B1F000E9; Mon, 17 Aug 2026 15:22:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786980121; bh=6T0nWc22FTGt2LcNwslC0wGaS3jwauqB3xXCXvjqbRA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=NeDVyrviQzWMl9l9cs1QuKhWgh8Eyttu6OyljD1jbd2G6esrfLFfZFNVoiZ9v55vG 0uzgiFZxIGJUG5lm67rULMca0Iu7QTlgk88g42Z/b2KnHb/q8aYts4JN26Rq7m+mG8 eM4piv2grqdX2pZgFHcGYVViVDwq88cqQfczirSA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Avi Weiss , Pavel Pisa , stable@kernel.org, Marc Kleine-Budde Subject: [PATCH 6.1 463/609] can: ctucanfd: handle bus error interrupts Date: Mon, 17 Aug 2026 15:32:39 +0200 Message-ID: <20260817132559.496686188@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260817132543.039278408@linuxfoundation.org> References: <20260817132543.039278408@linuxfoundation.org> User-Agent: quilt/0.69 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: Avi Weiss commit e74bae899529f49c0f375307983d12e8ecad7d4b upstream. Include REG_INT_STAT_BEI in the top-level error interrupt condition. BEI is enabled when CAN_CTRLMODE_BERR_REPORTING is requested and ctucan_err_interrupt() already handles it. Without checking and clearing BEI in the top-level handler, bus error interrupts are not handled or acknowledged. Fixes: 2dcb8e8782d8 ("can: ctucanfd: add support for CTU CAN FD open-source IP core - bus independent part.") Signed-off-by: Avi Weiss Acked-by: Pavel Pisa Link: https://patch.msgid.link/20260723074403.131575-1-thnkslprpt@gmail.com Cc: stable@kernel.org Signed-off-by: Marc Kleine-Budde Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/ctucanfd/ctucanfd_base.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) --- a/drivers/net/can/ctucanfd/ctucanfd_base.c +++ b/drivers/net/can/ctucanfd/ctucanfd_base.c @@ -1135,8 +1135,12 @@ static irqreturn_t ctucan_interrupt(int /* Error interrupts */ if (FIELD_GET(REG_INT_STAT_EWLI, isr) || FIELD_GET(REG_INT_STAT_FCSI, isr) || - FIELD_GET(REG_INT_STAT_ALI, isr)) { - icr = isr & (REG_INT_STAT_EWLI | REG_INT_STAT_FCSI | REG_INT_STAT_ALI); + FIELD_GET(REG_INT_STAT_ALI, isr) || + FIELD_GET(REG_INT_STAT_BEI, isr)) { + icr = isr & (REG_INT_STAT_EWLI | + REG_INT_STAT_FCSI | + REG_INT_STAT_ALI | + REG_INT_STAT_BEI); ctucan_netdev_dbg(ndev, "some ERR interrupt: clearing 0x%08x\n", icr); ctucan_write32(priv, CTUCANFD_INT_STAT, icr);