diff options
| author |   Mark Allyn <mark.a.allyn@intel.com> | 2010-12-09 09:32:38 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@suse.de> | 2010-12-09 16:37:50 -0800 |
| commit | 653bf0cfa55896b74d8cbe7e561401813ca359ad (patch) | |
| tree | 4da5555099717ec805b0477d03a796b859e67eb8 | |
| parent | Staging: sep: reduce 64 and 32 bit compile warnings (diff) | |
| download | linux-dev-653bf0cfa55896b74d8cbe7e561401813ca359ad.tar.xz linux-dev-653bf0cfa55896b74d8cbe7e561401813ca359ad.zip | |
Staging: sep: ensure that caller id buffer is little endian
Signed-off-by: Mark Allyn <mark.a.allyn@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/staging/sep/sep_driver.c | 8 | ||||
| -rw-r--r-- | drivers/staging/sep/sep_driver_config.h | 3 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/staging/sep/sep_driver.c b/drivers/staging/sep/sep_driver.c index 903d6106c0d3..bb42b048f46a 100644 --- a/drivers/staging/sep/sep_driver.c +++ b/drivers/staging/sep/sep_driver.c @@ -897,6 +897,7 @@ end_function: static int sep_set_current_caller_id(struct sep_device *sep) { int i; + u32 *hash_buf_ptr; dev_dbg(&sep->pdev->dev, "sep_set_current_caller_id start\n"); dev_dbg(&sep->pdev->dev, "current process is %d\n", current->pid); @@ -915,6 +916,13 @@ static int sep_set_current_caller_id(struct sep_device *sep) break; } } + /* Ensure data is in little endian */ + hash_buf_ptr = (u32 *)sep->shared_addr + + SEP_CALLER_ID_OFFSET_BYTES; + + for (i = 0; i < SEP_CALLER_ID_HASH_SIZE_IN_WORDS; i++) + hash_buf_ptr[i] = cpu_to_le32(hash_buf_ptr[i]); + dev_dbg(&sep->pdev->dev, "sep_set_current_caller_id end\n"); return 0; } diff --git a/drivers/staging/sep/sep_driver_config.h b/drivers/staging/sep/sep_driver_config.h index 92338c0f6bd2..b18625d2f7f4 100644 --- a/drivers/staging/sep/sep_driver_config.h +++ b/drivers/staging/sep/sep_driver_config.h @@ -201,6 +201,9 @@ held by the proccess (struct file) */ /* size of the caller id hash (sha2) */ #define SEP_CALLER_ID_HASH_SIZE_IN_BYTES 32 +/* size of the caller id hash (sha2) in 32 bit words */ +#define SEP_CALLER_ID_HASH_SIZE_IN_WORDS 8 + /* maximum number of entries in the caller id table */ #define SEP_CALLER_ID_TABLE_NUM_ENTRIES 20 |