Hi Bruno, Thank you for your patch. > Add the check if the whole firmware was loaded. > Cleaned up the leftovers of handling the file in chunks. > > Signed-off-by: Bruno Matic <bruno.matic@xxxxxxxxx> Christian proposed a fix to do_ffu about a week ago, see e.g. https://www.spinics.net/lists/linux-mmc/msg70961.html. Would you mind waiting for few more days to allow it to finalize, And then rebase your change and resend? Thanks, Avri > --- > mmc_cmds.c | 69 +++++++++++++++++++++++++++--------------------------- > 1 file changed, 34 insertions(+), 35 deletions(-) > > diff --git a/mmc_cmds.c b/mmc_cmds.c > index 70480df..e64c747 100644 > --- a/mmc_cmds.c > +++ b/mmc_cmds.c > @@ -2812,7 +2812,6 @@ 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; > __u32 blocks = 1; > @@ -2925,45 +2924,45 @@ 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) { > + fprintf(stderr, "Could not read the whole firmware file\n"); > + 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 > 0) { > + 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) {
