diff options
| author | Rob Clark <robdclark@gmail.com> | 2017-09-09 13:16:00 -0400 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-09-15 09:03:15 -0400 |
| commit | 265edc03d5a19550d92cbd6e10631d5a15bdd1d5 (patch) | |
| tree | d1275a8421fe74498d39d61059595c5648845eb2 /fs | |
| parent | 21a24c3bf35bac83d66ce4a48eb0c7dd8a7227cb (diff) | |
fs/fat: Clean up open-coded sector <-> cluster conversions
Use the clust_to_sect() helper that was introduced earlier, and add an
inverse sect_to_clust(), plus update the various spots that open-coded
this conversion previously.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/fat/fat.c | 8 | ||||
| -rw-r--r-- | fs/fat/fat_write.c | 8 |
2 files changed, 6 insertions, 10 deletions
diff --git a/fs/fat/fat.c b/fs/fat/fat.c index 65873a2c2a8..f5f74c12fff 100644 --- a/fs/fat/fat.c +++ b/fs/fat/fat.c @@ -257,8 +257,7 @@ get_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer, unsigned long size) int ret; if (clustnum > 0) { - startsect = mydata->data_begin + - clustnum * mydata->clust_size; + startsect = clust_to_sect(mydata, clustnum); } else { startsect = mydata->rootdir_sect; } @@ -594,9 +593,8 @@ static int get_fs_info(fsdata *mydata) mydata->data_begin = mydata->rootdir_sect + mydata->rootdir_size - (mydata->clust_size * 2); - mydata->root_cluster = (mydata->rootdir_sect - - mydata->data_begin) / - mydata->clust_size; + mydata->root_cluster = + sect_to_clust(mydata, mydata->rootdir_sect); } mydata->fatbufnum = -1; diff --git a/fs/fat/fat_write.c b/fs/fat/fat_write.c index d0468baf8ff..9d2e0ed74c8 100644 --- a/fs/fat/fat_write.c +++ b/fs/fat/fat_write.c @@ -502,8 +502,7 @@ set_cluster(fsdata *mydata, __u32 clustnum, __u8 *buffer, int ret; if (clustnum > 0) - startsect = mydata->data_begin + - clustnum * mydata->clust_size; + startsect = clust_to_sect(mydata, clustnum); else startsect = mydata->rootdir_sect; @@ -751,8 +750,7 @@ static int check_overflow(fsdata *mydata, __u32 clustnum, loff_t size) __u32 startsect, sect_num, offset; if (clustnum > 0) { - startsect = mydata->data_begin + - clustnum * mydata->clust_size; + startsect = clust_to_sect(mydata, clustnum); } else { startsect = mydata->rootdir_sect; } @@ -791,7 +789,7 @@ static dir_entry *empty_dentptr; static dir_entry *find_directory_entry(fsdata *mydata, int startsect, char *filename, dir_entry *retdent, __u32 start) { - __u32 curclust = (startsect - mydata->data_begin) / mydata->clust_size; + __u32 curclust = sect_to_clust(mydata, startsect); debug("get_dentfromdir: %s\n", filename); |