On Sun, Feb 10, 2008 at 09:12:02PM +0200, Boaz Harrosh wrote:
> @@ -525,6 +516,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
> unsigned long flags = 0;
> unsigned long timeout;
> int rtn = 0;
> + unsigned cmd_len;
>
> /* check if the device is still usable */
> if (unlikely(cmd->device->sdev_state == SDEV_DEL)) {
> @@ -606,9 +598,17 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
> * Before we queue this command, check if the command
> * length exceeds what the host adapter can handle.
> */
> - if (CDB_SIZE(cmd) > cmd->device->host->max_cmd_len) {
> + cmd_len = cmd->cmd_len;
> + if (!cmd_len) {
> + BUG_ON(cmd->cmnd[0] == VARIABLE_LENGTH_CMD);
> + cmd_len = COMMAND_SIZE((cmd)->cmnd[0]);
> + }
This looks odd to me. Shouldn't we make sure cmd_len is always
initialized in a single place for either varlen or fixed length
commands and not have things like this?
-
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