From patchwork Fri Apr 12 00:02:22 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bart Van Assche X-Patchwork-Id: 13626658 Received: from 008.lax.mailroute.net (008.lax.mailroute.net [199.89.1.11]) (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 DDCD428E7 for ; Fri, 12 Apr 2024 00:03:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=199.89.1.11 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712880189; cv=none; b=DpqDCOPhpPRfhCN2zEdUrrvHW721GsLKzeJaIjOGLxdhUWA+hkX30ab8QiLh2ASBD9tLZ7D8v5cgGXpx4AcaUfdRRSH13w46+RzeXoFj0vOWU9jqcS57hPoAZt/BVnu6rs7CNVwxy5cTxbMxhnGYJgSJb9P1lwRsV4cBwKGgQ3k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712880189; c=relaxed/simple; bh=tVSFqs4M+dZdosEXmcx7d0wioApvxbkm4QJMEGyKg7M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DofrCZA2w3PC6wb7ON5Rfnl5OTXZuEoVHAPojuOP5GM6rT0ZXwPecQH1Fnbl29s9RmB+bSKhs4rrobS8a5XJs4rCXbb9YDSbJCcAMIK8d11/Lf5G5Bo9f9MLjQKppN/ie2ROkhgiSas24ZtoX1ApqwQxplO66/jZwZOZQk0LBU8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=acm.org; spf=pass smtp.mailfrom=acm.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b=dq4pPuMw; arc=none smtp.client-ip=199.89.1.11 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=acm.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=acm.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b="dq4pPuMw" Received: from localhost (localhost [127.0.0.1]) by 008.lax.mailroute.net (Postfix) with ESMTP id 4VFxbb4JRcz6Cnk8m; Fri, 12 Apr 2024 00:03:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=acm.org; h= content-transfer-encoding:mime-version:references:in-reply-to :x-mailer:message-id:date:date:subject:subject:from:from :received:received; s=mr01; t=1712880183; x=1715472184; bh=pVq15 uAKoGgM8Aqrh+JwHv5Y1sBgqhp+mELSsza3CB8=; b=dq4pPuMwjllyfFH+bdV9b HIlTq/pxPwKMZk4NNic2hgCI7A8otI1IuXsx48F7+YLCixSWndHiGpjLue00SKBr qM9mF3O9Qk336Ef/MZI79kjD1nOcTrjD0hW3mwtnGmvmg5u8S8s8jeGtjHmRzSgp jelmdYBBllqmVdNHpFHKZWkvTRCwz/8iz1EZRgyrPh3rzfdamTLiiVuYIHF/4qEt juTU7T9o1GVFKosOrK3urO+zHn2OHTNAuveGZz34PEnoMT6hxNkw+6XWYXsXEj2T N8vtoqyzZLa6qxRHjBDuedNnTltHvKeSTTZXxThZmtpPfwUn3ibFAro70u9EYGEQ g== X-Virus-Scanned: by MailRoute Received: from 008.lax.mailroute.net ([127.0.0.1]) by localhost (008.lax [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id XO5xLE3P75XW; Fri, 12 Apr 2024 00:03:03 +0000 (UTC) Received: from bvanassche-glaptop2.roam.corp.google.com (c-73-231-117-72.hsd1.ca.comcast.net [73.231.117.72]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bvanassche@acm.org) by 008.lax.mailroute.net (Postfix) with ESMTPSA id 4VFxbT6pVSz6Cnk8t; Fri, 12 Apr 2024 00:03:01 +0000 (UTC) From: Bart Van Assche To: "Martin K . Petersen" Cc: linux-scsi@vger.kernel.org, Bart Van Assche , "James E.J. Bottomley" , Stanley Jhu , Avri Altman , Can Guo , Peter Wang , "Bao D. Nguyen" , Bean Huo , Manivannan Sadhasivam Subject: [PATCH 2/4] scsi: ufs: Make ufshcd_poll() complain about unsupported arguments Date: Thu, 11 Apr 2024 17:02:22 -0700 Message-ID: <20240412000246.1167600-3-bvanassche@acm.org> X-Mailer: git-send-email 2.44.0.683.g7961c838ac-goog In-Reply-To: <20240412000246.1167600-1-bvanassche@acm.org> References: <20240412000246.1167600-1-bvanassche@acm.org> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The ufshcd_poll() implementation does not support queue_num == UFSHCD_POLL_FROM_INTERRUPT_CONTEXT in MCQ mode. Hence complain if queue_num == UFSHCD_POLL_FROM_INTERRUPT_CONTEXT in MCQ mode. Signed-off-by: Bart Van Assche --- drivers/ufs/core/ufshcd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 62c8575f2c67..66198eee51b0 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -5617,6 +5617,7 @@ static int ufshcd_poll(struct Scsi_Host *shost, unsigned int queue_num) struct ufs_hw_queue *hwq; if (is_mcq_enabled(hba)) { + WARN_ON_ONCE(queue_num == UFSHCD_POLL_FROM_INTERRUPT_CONTEXT); hwq = &hba->uhq[queue_num]; return ufshcd_mcq_poll_cqe_lock(hba, hwq);