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 ACECC53365; Thu, 12 Dec 2024 17:17:28 +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=1734023848; cv=none; b=hP9xHEcDe4vT7MzBbWuqBPWRWJHTq2pz6xcaFWpugBxu4DBJF1jTxfqAANX/aDz2oXXzR+7cxjpMMUazLaHbbfBpwKDmmoqCmg4oYYU+kAphFHL3BR51XcNEkIMn3bleRhdLYVCLnDTAVmuLsSqq1iu1x4TRk3IXPK9VqWVME5c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734023848; c=relaxed/simple; bh=tpE4H6zmMxbXa+d0BeLpG2ctyoHx6ZbRZ0ToNftZ/Eg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pQya4eLWIeDzlc3WmCIkfTI8luR2QGq6fE+mPzAQkKzDwvHBhUUj+BaQGRv2WegHvyg+SM9XlHDzx/MCdSkdnVybioFeRzjyXRr1OLaa+iP9xUVxp9MivzipYoE/2rhOk/ss7/kYhTKklBPw5kfEblNVVhDiHcu9LiaNLNEm/HA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Ttoj/VZe; 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="Ttoj/VZe" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2F650C4CECE; Thu, 12 Dec 2024 17:17:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1734023848; bh=tpE4H6zmMxbXa+d0BeLpG2ctyoHx6ZbRZ0ToNftZ/Eg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ttoj/VZe8+HQ4qazKmtqFyNNSm/1PnRb9bNYbdIhznfnLiNylN0eCgFj6oXtfa37x Jn16mOJY10QV8Glc5O8h/2Enk22qQwD6imfcKmAAcLtmpOsMVI7H1jAwtgCGbs9Zgu b93E4nfXNIjaRClRMgGukKWA3py8MytinAcHFTBw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jinjie Ruan , Laurentiu Palcu , Dmitry Baryshkov , Sasha Levin Subject: [PATCH 5.10 103/459] drm/imx/dcss: Use IRQF_NO_AUTOEN flag in request_irq() Date: Thu, 12 Dec 2024 15:57:21 +0100 Message-ID: <20241212144257.581464805@linuxfoundation.org> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20241212144253.511169641@linuxfoundation.org> References: <20241212144253.511169641@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 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jinjie Ruan [ Upstream commit 1af01e14db7e0b45ae502d822776a58c86688763 ] disable_irq() after request_irq() still has a time gap in which interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will disable IRQ auto-enable when request IRQ. Fixes: 9021c317b770 ("drm/imx: Add initial support for DCSS on iMX8MQ") Signed-off-by: Jinjie Ruan Reviewed-by: Laurentiu Palcu Link: https://patchwork.freedesktop.org/patch/msgid/20240912083020.3720233-2-ruanjinjie@huawei.com [DB: fixed the subject] Signed-off-by: Dmitry Baryshkov Signed-off-by: Sasha Levin --- drivers/gpu/drm/imx/dcss/dcss-crtc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/imx/dcss/dcss-crtc.c b/drivers/gpu/drm/imx/dcss/dcss-crtc.c index 36abff0890b28..ec041fcd07d02 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-crtc.c +++ b/drivers/gpu/drm/imx/dcss/dcss-crtc.c @@ -201,15 +201,13 @@ int dcss_crtc_init(struct dcss_crtc *crtc, struct drm_device *drm) if (crtc->irq < 0) return crtc->irq; - ret = request_irq(crtc->irq, dcss_crtc_irq_handler, - 0, "dcss_drm", crtc); + ret = request_irq(crtc->irq, dcss_crtc_irq_handler, IRQF_NO_AUTOEN, + "dcss_drm", crtc); if (ret) { dev_err(dcss->dev, "irq request failed with %d.\n", ret); return ret; } - disable_irq(crtc->irq); - return 0; } -- 2.43.0