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| author | Alexander Lobakin <aleksander.lobakin@intel.com> | 2024-03-27 16:23:42 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-04-01 10:49:27 +0100 |
| commit | 7d8296b250f2eed73f1758607926d4d258dea5d4 (patch) | |
| tree | c04f8aeed4832a056ea8947c9109b396f94838e8 /kernel | |
| parent | 72cc1980a0ef3ccad0d539e7dace63d0d7d432a4 (diff) | |
| download | linux-stable-7d8296b250f2eed73f1758607926d4d258dea5d4.tar.gz linux-stable-7d8296b250f2eed73f1758607926d4d258dea5d4.tar.bz2 linux-stable-7d8296b250f2eed73f1758607926d4d258dea5d4.zip | |
bitops: make BYTES_TO_BITS() treewide-available
Avoid open-coding that simple expression each time by moving
BYTES_TO_BITS() from the probes code to <linux/bitops.h> to export
it to the rest of the kernel.
Simplify the macro while at it. `BITS_PER_LONG / sizeof(long)` always
equals to %BITS_PER_BYTE, regardless of the target architecture.
Do the same for the tools ecosystem as well (incl. its version of
bitops.h). The previous implementation had its implicit type of long,
while the new one is int, so adjust the format literal accordingly in
the perf code.
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Acked-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/trace/trace_probe.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index dfe3ee6035ec..87337a0c8e03 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -1180,8 +1180,6 @@ parse_probe_arg(char *arg, const struct fetch_type *type, return ret; } -#define BYTES_TO_BITS(nb) ((BITS_PER_LONG * (nb)) / sizeof(long)) - /* Bitfield type needs to be parsed into a fetch function */ static int __parse_bitfield_probe_arg(const char *bf, const struct fetch_type *t, |