src/patches/suse-2.6.27.25/patches.drivers/mpt-return-all-sense-data

   1 From: Mike Reed <mdr@sgi.com>
   2 Subject: MPT Fusion doesn't return all sense data
   3 References: bnc#466179
   4
   5 This patch removes an inappropriate sizeof() test which truncated the amount of
   6 sense data returned to the size of a pointer.
   7
   8 Signed-off-by: Mike Reed <mdr@sgi.com>
   9 Signed-off-by: Sathya Prakash <sathya.prakash@lsi.com>
  10 Signed-off-by: Hannes Reinecke <hare@suse.de>
  11
  12 --- a/drivers/message/fusion/mptscsih.c 2009-01-08 12:46:11.000000000 -0600
  13 +++ b/drivers/message/fusion/mptscsih.c 2009-01-13 13:33:16.239522030 -0600
  14 @@ -112,8 +112,6 @@ int                 mptscsih_suspend(struct pci_dev *p
  15  int            mptscsih_resume(struct pci_dev *pdev);
  16  #endif
  17
  18 -#define SNS_LEN(scp)   sizeof((scp)->sense_buffer)
  19 -
  20  /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/
  21  /**
  22   *     mptscsih_getFreeChainBuffer - Function to get a free chain
  23 @@ -2594,7 +2592,11 @@ mptscsih_copy_sense_data(struct scsi_cmn
  24                 /* Copy the sense received into the scsi command block. */
  25                 req_index = le16_to_cpu(mf->u.frame.hwhdr.msgctxu.fld.req_idx);
  26                 sense_data = ((u8 *)ioc->sense_buf_pool + (req_index * MPT_SENSE_BUFFER_ALLOC));
  27 -               memcpy(sc->sense_buffer, sense_data, SNS_LEN(sc));
  28 +
  29 +               if (sense_count > SCSI_SENSE_BUFFERSIZE)
  30 +                       sense_count = SCSI_SENSE_BUFFERSIZE;
  31 +
  32 +               memcpy(sc->sense_buffer, sense_data, sense_count);
  33
  34                 /* Log SMART data (asc = 0x5D, non-IM case only) if required.
  35                  */