From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from 003.mia.mailroute.net (003.mia.mailroute.net [199.89.3.6]) (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 46FD832E757 for ; Thu, 30 Oct 2025 19:40:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=199.89.3.6 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761853250; cv=none; b=mbAwHScMYr1fimSYMS9gA4GXLOAcKM/lESrZAqouQU9Uq/QIGOCfnQWMac7Vkmk5VFijJdoml0A4iywGQYHBY3+5AjzydWuzdDbSpdLxRrTxCjjIlmleQDUldlD75kk1R//PHsQV8adNjQ/lLUKkKQdtUgubX6i/h4wyd5As+Wc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761853250; c=relaxed/simple; bh=rXhKAGXHee1we0hNiqW7mPay7RD89qvAUu0CciRj+CI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=lBtAWhAbXpsPXGV+bN7uU8pMFCtvwkNLkfbsScZYBEv4VzJ7b/Ydb20MVVUf7FKW0qgNIz1FU1tH3C5RFWCpnRs6/XT/urSf17sHLdwP3bFQVq8QpBVKV1KGlWxxPJ3y1hSNCqHceRjv7Fk3eKN5D/DHSnOa1WASCSNmrVsYcj0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject 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=LplWi353; arc=none smtp.client-ip=199.89.3.6 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject 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="LplWi353" Received: from localhost (localhost [127.0.0.1]) by 003.mia.mailroute.net (Postfix) with ESMTP id 4cyDxD3WVPzlv4Vd; Thu, 30 Oct 2025 19:40:48 +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=1761853246; x=1764445247; bh=RrLPt 4C5e6+12kGLJZdYNVbXvlyjHZdpg48s/AIwbjU=; b=LplWi353b//62UJILpeCn 90yTw5yEC2xU49TRpNKmOTuOk2l4P9KxvUMG71/DP8q4dKcGDdouAq9SL1bwDQ5p ngrkbQwrWgLwQi5K7EEi+p9sDRZFq1UXcXjfNGQyVN2fIpMkcyHrLk9TpiU9WmXL NC8UwCzVIvJJrGsORUAHELruj4ukmB25wkHW85exv0mSg1LKacrNIXHIQVQK9Baf ox8r1tQzpXnogomNWnepOkF2nGxuC5ODEXiiGYiOQifccLTjZ72G6iUb7XbBiFdv 5L8KRj/0gauExBhM1ze+pZEfAGZWpX16RSsFKtMTizhQaHbm0J8bBn4OnrOyAmIe g== X-Virus-Scanned: by MailRoute Received: from 003.mia.mailroute.net ([127.0.0.1]) by localhost (003.mia [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id Rb_YvdGsGROi; Thu, 30 Oct 2025 19:40:46 +0000 (UTC) Received: from bvanassche.mtv.corp.google.com (unknown [104.135.180.219]) (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 003.mia.mailroute.net (Postfix) with ESMTPSA id 4cyDx438lyzlngp5; Thu, 30 Oct 2025 19:40:39 +0000 (UTC) From: Bart Van Assche To: "Martin K . Petersen" Cc: linux-scsi@vger.kernel.org, Bart Van Assche , "James E.J. Bottomley" , Peter Wang , Avri Altman , Bean Huo , "Bao D. Nguyen" , Adrian Hunter Subject: [PATCH v7 22/28] ufs: core: Do not clear driver-private command data Date: Thu, 30 Oct 2025 12:36:21 -0700 Message-ID: <20251030193720.871635-23-bvanassche@acm.org> X-Mailer: git-send-email 2.51.1.930.gacf6e81ea2-goog In-Reply-To: <20251030193720.871635-1-bvanassche@acm.org> References: <20251030193720.871635-1-bvanassche@acm.org> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Tell the SCSI core to skip the memset() call that clears driver-private data because __ufshcd_setup_cmd() performs all necessary initialization. Signed-off-by: Bart Van Assche --- drivers/ufs/core/ufshcd.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 20eae5d9487b..1757aa0237da 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -2996,6 +2996,15 @@ static void ufshcd_map_queues(struct Scsi_Host *sh= ost) } } =20 +/* + * The only purpose of this function is to make the SCSI core skip the m= emset() + * call for the private command data. + */ +static int ufshcd_init_cmd_priv(struct Scsi_Host *host, struct scsi_cmnd= *cmd) +{ + return 0; +} + /** * ufshcd_queuecommand - main entry point for SCSI requests * @host: SCSI host pointer @@ -9182,6 +9191,7 @@ static const struct scsi_host_template ufshcd_drive= r_template =3D { .name =3D UFSHCD, .proc_name =3D UFSHCD, .map_queues =3D ufshcd_map_queues, + .init_cmd_priv =3D ufshcd_init_cmd_priv, .queuecommand =3D ufshcd_queuecommand, .nr_reserved_cmds =3D UFSHCD_NUM_RESERVED, .mq_poll =3D ufshcd_poll,