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| author | Gustavo Romero <gromero@linux.ibm.com> | 2020-07-20 19:16:08 -0400 |
|---|---|---|
| committer | Oliver O'Halloran <oohall@gmail.com> | 2020-08-07 16:00:20 +1000 |
| commit | 6840dd826341d9315e4d78681693441e6dd7db60 (patch) | |
| tree | bf8351dc20c92646e90b3a286939dfa700325d27 /include | |
| parent | ea62e75605f6d6446f03c1b9522c9dff46abe2e3 (diff) | |
| download | skiboot-6840dd826341d9315e4d78681693441e6dd7db60.zip skiboot-6840dd826341d9315e4d78681693441e6dd7db60.tar.gz skiboot-6840dd826341d9315e4d78681693441e6dd7db60.tar.bz2 | |
Update comments for bit manipulation macros
Bit manipulation code was updated but comments related to it were not.
This commit updates the comments for the main macros, GET/SETFIELD, to
make them match the code.
Signed-off-by: Gustavo Romero <gromero@linux.ibm.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/bitutils.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/bitutils.h b/include/bitutils.h index f6f21c2..ac3af4d 100644 --- a/include/bitutils.h +++ b/include/bitutils.h @@ -30,11 +30,11 @@ /* Find left shift from first set bit in mask */ #define MASK_TO_LSH(m) (__builtin_ffsl(m) - 1) -/* Extract field fname from val */ +/* Extract field from 'v' according to mask 'm' */ #define GETFIELD(m, v) (((v) & (m)) >> MASK_TO_LSH(m)) -/* Set field fname of oval to fval - * NOTE: oval isn't modified, the combined result is returned +/* Set field specified by mask 'm' of 'v' to value 'val' + * NOTE: 'v' isn't modified, the combined result is returned */ #define SETFIELD(m, v, val) \ (((v) & ~(m)) | ((((typeof(v))(val)) << MASK_TO_LSH(m)) & (m))) |