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 6603C20E026; Mon, 2 Jun 2025 14:53:22 +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=1748876002; cv=none; b=pG35WfQCN04UZwxIzEfhyogHti5gg2GbVNEqFFyFT3rRdmhOoBMYVnSlTHHysz+B+L7i84nbf5N3ceLjPu2cQc4GJbSn5EZG/rIXri0zlmU+3alg7L4Uq2iautltw6qffyvpso3QcJM4BwXvYZqU1mnuiQExbUlCP639ARIu/iE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748876002; c=relaxed/simple; bh=A7ksV4ifDY4jLRHb/QBGhvmLh0F/j3grcVITU1mt3PE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=oq4RbvLyd/XCX/FGqc+aFHEXDRkvLj8mdTj9XJuoBShzP/TaAm985cXiOASMs0QgUbFCO3cYESrEoNjsw5Hk1moVqkFH6DL9eKyxYB36Qty9++uQD0FiUQLCIcPfRIvVFKb5GRQvU/s2t6HLE8e01MeN2m+HpUSAfZPkag9SMmA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=QObwfrKb; 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="QObwfrKb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C7D9AC4CEEB; Mon, 2 Jun 2025 14:53:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1748876002; bh=A7ksV4ifDY4jLRHb/QBGhvmLh0F/j3grcVITU1mt3PE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QObwfrKbo1unu7MIBFocGMgoFhvdHdB4FRIa5iXv6sQ8O9bpSrs5LXdYk4qRH3CQj KeMvxlZAWak8k7zKHX6SMueV/Q1kD85ERYHtz7sFXoWNDG5gkMPSPB0S5xceSPVTI8 zG8d2EuZcNJQhH5yYSmdyFs3avxj0a+kGISzzE5c= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, =?UTF-8?q?Kai=20M=C3=A4kisara?= , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 5.15 040/207] scsi: st: Tighten the page format heuristics with MODE SELECT Date: Mon, 2 Jun 2025 15:46:52 +0200 Message-ID: <20250602134300.328599627@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250602134258.769974467@linuxfoundation.org> References: <20250602134258.769974467@linuxfoundation.org> User-Agent: quilt/0.68 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-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Kai Mäkisara [ Upstream commit 8db816c6f176321e42254badd5c1a8df8bfcfdb4 ] In the days when SCSI-2 was emerging, some drives did claim SCSI-2 but did not correctly implement it. The st driver first tries MODE SELECT with the page format bit set to set the block descriptor. If not successful, the non-page format is tried. The test only tests the sense code and this triggers also from illegal parameter in the parameter list. The test is limited to "old" devices and made more strict to remove false alarms. Signed-off-by: Kai Mäkisara Link: https://lore.kernel.org/r/20250311112516.5548-4-Kai.Makisara@kolumbus.fi Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/st.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 956b3b9c5aad5..a58cb2171f958 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -3071,7 +3071,9 @@ static int st_int_ioctl(struct scsi_tape *STp, unsigned int cmd_in, unsigned lon cmd_in == MTSETDRVBUFFER || cmd_in == SET_DENS_AND_BLK) { if (cmdstatp->sense_hdr.sense_key == ILLEGAL_REQUEST && - !(STp->use_pf & PF_TESTED)) { + cmdstatp->sense_hdr.asc == 0x24 && + (STp->device)->scsi_level <= SCSI_2 && + !(STp->use_pf & PF_TESTED)) { /* Try the other possible state of Page Format if not already tried */ STp->use_pf = (STp->use_pf ^ USE_PF) | PF_TESTED; -- 2.39.5