diff options
| author | Matthew R. Ochs <mrochs@linux.vnet.ibm.com> | 2015-10-21 23:14:48 +0300 |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-10-30 11:17:36 +0300 |
| commit | 1786f4a0933198632c5e4d27f25e1d467e1fd032 (patch) | |
| tree | 14789981147a57f9f24f79081b00317ca78e199a /drivers/scsi/cxlflash/superpipe.c | |
| parent | 1284fb0cff10fcc3df1e9a50a795868d346fa647 (diff) | |
| download | linux-1786f4a0933198632c5e4d27f25e1d467e1fd032.tar.xz | |
cxlflash: Fix MMIO and endianness errors
Sparse uncovered several errors with MMIO operations (accessing
directly) and handling endianness. These can cause issues when
running in different environments.
Introduce __iomem and proper endianness tags/swaps where
appropriate to make driver sparse clean.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/cxlflash/superpipe.c')
| -rw-r--r-- | drivers/scsi/cxlflash/superpipe.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/scsi/cxlflash/superpipe.c b/drivers/scsi/cxlflash/superpipe.c index 577aa25d80f5..e99a0eba42fa 100644 --- a/drivers/scsi/cxlflash/superpipe.c +++ b/drivers/scsi/cxlflash/superpipe.c @@ -253,7 +253,7 @@ static int afu_attach(struct cxlflash_cfg *cfg, struct ctx_info *ctxi) { struct device *dev = &cfg->dev->dev; struct afu *afu = cfg->afu; - struct sisl_ctrl_map *ctrl_map = ctxi->ctrl_map; + struct sisl_ctrl_map __iomem *ctrl_map = ctxi->ctrl_map; int rc = 0; u64 val; @@ -365,8 +365,8 @@ retry: * as the buffer is allocated on an aligned boundary. */ mutex_lock(&gli->mutex); - gli->max_lba = be64_to_cpu(*((u64 *)&cmd_buf[0])); - gli->blk_len = be32_to_cpu(*((u32 *)&cmd_buf[8])); + gli->max_lba = be64_to_cpu(*((__be64 *)&cmd_buf[0])); + gli->blk_len = be32_to_cpu(*((__be32 *)&cmd_buf[8])); mutex_unlock(&gli->mutex); out: |