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Fri, 9 Sep 2022 13:03:35 +0200 (CEST) From: Bruno Matic To: ulf.hansson@linaro.org, avri.altman@wdc.com Cc: linux-mmc@vger.kernel.org, CLoehle@hyperstone.com, jakob.rossler@nokia.com, aarne.heinonen@nokia.com, Bruno Matic Subject: [PATCH v3] mmc-utils: correct and clean up the file handling Date: Fri, 9 Sep 2022 13:03:22 +0200 Message-Id: <20220909110322.25141-1-bruno.matic@nokia.com> X-Mailer: git-send-email 2.29.0 MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: VE1EUR03FT015:EE_|DB7PR07MB5078:EE_ X-MS-Office365-Filtering-Correlation-Id: c6bcde1b-7410-4284-9e95-08da9252f305 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:131.228.6.101; CTRY:FI; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:fr712usmtp1.zeu.alcatel-lucent.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(13230016)(4636009)(396003)(39860400002)(136003)(376002)(346002)(40470700004)(46966006)(36840700001)(82960400001)(2616005)(186003)(336012)(1076003)(26005)(6266002)(82740400003)(44832011)(8936002)(36860700001)(4326008)(2906002)(70206006)(82310400005)(70586007)(8676002)(36756003)(5660300002)(86362001)(42186006)(356005)(107886003)(81166007)(40480700001)(41300700001)(6666004)(47076005)(316002)(40460700003)(478600001)(83380400001)(36900700001); DIR:OUT; SFP:1102; X-OriginatorOrg: nokia.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB7PR07MB5078 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org Add the check if the whole firmware was loaded. Cleaned up the leftovers of handling the file in chunks. Changes in v3: - checked and formated the patch Changes in v2: - use perror to propagate the error on file read Signed-off-by: Bruno Matic Reviewed-by: Avri Altman Tested-by: Rossler, Jakob (Nokia - DE/Ulm) --- mmc_cmds.c | 66 ++++++++++++++++++++++++++---------------------------- 1 file changed, 32 insertions(+), 34 deletions(-) diff --git a/mmc_cmds.c b/mmc_cmds.c index 12b7802..ef1d8c6 100644 --- a/mmc_cmds.c +++ b/mmc_cmds.c @@ -2765,7 +2765,6 @@ int do_ffu(int nargs, char **argv) __u8 *buf = NULL; __u32 arg; off_t fw_size; - ssize_t chunk_size; char *device; struct mmc_ioc_multi_cmd *multi_cmd = NULL; @@ -2879,45 +2878,44 @@ int do_ffu(int nargs, char **argv) multi_cmd->cmds[3].flags = MMC_RSP_SPI_R1B | MMC_RSP_R1B | MMC_CMD_AC; multi_cmd->cmds[3].write_flag = 1; -do_retry: - /* read firmware chunk */ + /* read firmware */ lseek(img_fd, 0, SEEK_SET); - chunk_size = read(img_fd, buf, fw_size); + if (read(img_fd, buf, fw_size) != fw_size) { + perror("Could not read the firmware file: "); + ret = -ENOSPC; + goto out; + } - if (chunk_size > 0) { - /* send ioctl with multi-cmd */ - ret = ioctl(dev_fd, MMC_IOC_MULTI_CMD, multi_cmd); +do_retry: + /* send ioctl with multi-cmd */ + ret = ioctl(dev_fd, MMC_IOC_MULTI_CMD, multi_cmd); - if (ret) { - perror("Multi-cmd ioctl"); - /* In case multi-cmd ioctl failed before exiting from ffu mode */ - ioctl(dev_fd, MMC_IOC_CMD, &multi_cmd->cmds[3]); - goto out; - } + if (ret) { + perror("Multi-cmd ioctl"); + /* In case multi-cmd ioctl failed before exiting from ffu mode */ + ioctl(dev_fd, MMC_IOC_CMD, &multi_cmd->cmds[3]); + goto out; + } - ret = read_extcsd(dev_fd, ext_csd); - if (ret) { - fprintf(stderr, "Could not read EXT_CSD from %s\n", device); - goto out; - } + ret = read_extcsd(dev_fd, ext_csd); + if (ret) { + fprintf(stderr, "Could not read EXT_CSD from %s\n", device); + goto out; + } - /* Test if we need to restart the download */ - sect_done = ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_0] | - ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_1] << 8 | - ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_2] << 16 | - ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_3] << 24; - /* By spec, host should re-start download from the first sector if sect_done is 0 */ - if (sect_done == 0) { - if (retry > 0) { - retry--; - fprintf(stderr, "Programming failed. Retrying... (%d)\n", retry); - goto do_retry; - } - fprintf(stderr, "Programming failed! Aborting...\n"); - goto out; - } else { - fprintf(stderr, "Programmed %d/%jd bytes\r", sect_done * sect_size, (intmax_t)fw_size); + /* Test if we need to restart the download */ + sect_done = ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_0] | + ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_1] << 8 | + ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_2] << 16 | + ext_csd[EXT_CSD_NUM_OF_FW_SEC_PROG_3] << 24; + /* By spec, host should re-start download from the first sector if sect_done is 0 */ + if (sect_done == 0) { + if (retry--) { + fprintf(stderr, "Programming failed. Retrying... (%d)\n", retry); + goto do_retry; } + fprintf(stderr, "Programming failed! Aborting...\n"); + goto out; } if ((sect_done * sect_size) == fw_size) {