diff options
| -rw-r--r-- | lib/crc_kunit.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/crc_kunit.c b/lib/crc_kunit.c index 0e15eb244b20..585c48b65cef 100644 --- a/lib/crc_kunit.c +++ b/lib/crc_kunit.c @@ -226,8 +226,9 @@ crc_benchmark(struct kunit *test, }; size_t len, i, j, num_iters; /* - * Some of the CRC library functions are marked as __pure, so use - * volatile to ensure that all calls are really made as intended. + * The CRC value that this function computes in a series of calls to + * crc_func is never actually used, so use volatile to ensure that the + * computations are done as intended and don't all get optimized out. */ volatile u64 crc = 0; u64 t; |