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 179A916423; Tue, 27 Feb 2024 14:04:01 +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=1709042641; cv=none; b=ui2x3scdAlIi2Yepyo11B28nMWMHy+qeMDEaYFoMIlNXtfPyMfk1LcOGnl2femDSm5ZIMxcQ2IJuOgnq+I+asQ2FNdSc0vV1U7OrhzC49VNm67lr6txvizKQZDDnhMlA/TS+4ujD209g+Pj+n+aSN+wTAKohrs0+s4OSUZYr5t4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709042641; c=relaxed/simple; bh=UGavHKS3p3npexGYuQ23I4IDuKPSzlwXk1OL/fcm/y8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nJLKg4Gdgo9p+2Eg2xtzR0zjncfuPxk97eS0fzxJa/JIM0eGk6ORBNz66Ey36FPH/l3Hxskvg9yiFz1ywe39QQlO2oAOhvWe+NRgz69kW1QsNRqSZjgJIQuGlBzcXFeesBEuncjTGYnpjoW5hhaOKeDcFAZM1CBBL7m4TFaft6A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=1Mpu6j8a; 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="1Mpu6j8a" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 98F64C433C7; Tue, 27 Feb 2024 14:04:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1709042641; bh=UGavHKS3p3npexGYuQ23I4IDuKPSzlwXk1OL/fcm/y8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=1Mpu6j8a60kAsmSRlGd9Vpn390A6ZHMu9avXpNVCaxBx08I9vzp/agFw/dqMTak8l gLBT3eqLGO2vzamNhyn6TsGnl//1fXALF4PeKkDww07x+9QsYz0J7/Ti3+b4piVmNj rIXVasH7Br/CvauV/oqxaJ8SWJ5OJ0FC8yJLRSCA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Hannes Reinecke , Daniel Wagner , "Martin K. Petersen" , Sasha Levin Subject: [PATCH 5.15 068/245] scsi: lpfc: Use unsigned type for num_sge Date: Tue, 27 Feb 2024 14:24:16 +0100 Message-ID: <20240227131617.451234754@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240227131615.098467438@linuxfoundation.org> References: <20240227131615.098467438@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 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hannes Reinecke [ Upstream commit d6c1b19153f92e95e5e1801d540e98771053afae ] LUNs going into "failed ready running" state observed on >1T and on even numbers of size (2T, 4T, 6T, 8T and 10T). The issue occurs when DIF is enabled at the host. The kernel logs: Cannot setup S/G List for HBAIO segs 1/1 SGL 512 SCSI 256: 3 0 The host lpfc driver is failing to setup scatter/gather list (protection data) for the I/Os. The return type lpfc_bg_setup_sgl()/lpfc_bg_setup_sgl_prot() causes the compiler to remove the most significant bit. Use an unsigned type instead. Signed-off-by: Hannes Reinecke [dwagner: added commit message] Signed-off-by: Daniel Wagner Link: https://lore.kernel.org/r/20231220162658.12392-1-dwagner@suse.de Signed-off-by: Martin K. Petersen Signed-off-by: Sasha Levin --- drivers/scsi/lpfc/lpfc_scsi.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 4813adec0301d..6d1a3cbd6b3c4 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -1983,7 +1983,7 @@ lpfc_bg_setup_bpl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, * * Returns the number of SGEs added to the SGL. **/ -static int +static uint32_t lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, struct sli4_sge *sgl, int datasegcnt, struct lpfc_io_buf *lpfc_cmd) @@ -1991,8 +1991,8 @@ lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, struct scatterlist *sgde = NULL; /* s/g data entry */ struct sli4_sge_diseed *diseed = NULL; dma_addr_t physaddr; - int i = 0, num_sge = 0, status; - uint32_t reftag; + int i = 0, status; + uint32_t reftag, num_sge = 0; uint8_t txop, rxop; #ifdef CONFIG_SCSI_LPFC_DEBUG_FS uint32_t rc; @@ -2164,7 +2164,7 @@ lpfc_bg_setup_sgl(struct lpfc_hba *phba, struct scsi_cmnd *sc, * * Returns the number of SGEs added to the SGL. **/ -static int +static uint32_t lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, struct sli4_sge *sgl, int datacnt, int protcnt, struct lpfc_io_buf *lpfc_cmd) @@ -2188,8 +2188,8 @@ lpfc_bg_setup_sgl_prot(struct lpfc_hba *phba, struct scsi_cmnd *sc, uint32_t rc; #endif uint32_t checking = 1; - uint32_t dma_offset = 0; - int num_sge = 0, j = 2; + uint32_t dma_offset = 0, num_sge = 0; + int j = 2; struct sli4_hybrid_sgl *sgl_xtra = NULL; sgpe = scsi_prot_sglist(sc); -- 2.43.0