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| author |   Thorsten Blum <thorsten.blum@toblux.com> | 2024-07-10 23:52:39 +0200 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-07-31 13:12:02 +0200 |
| commit | 104831a17518796fb29e803fe07eb87ce9df884d (patch) | |
| tree | ff00f04a994d5a4f346de6c625f73d70de2fbda4 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | comedi: ni_*: do not declare unused variable range_ni_E_ao_ext (diff) | |
| download | wireguard-linux-104831a17518796fb29e803fe07eb87ce9df884d.tar.xz wireguard-linux-104831a17518796fb29e803fe07eb87ce9df884d.zip | |
hpet: Optimize local variable data type in hpet_alloc()
The local variable period uses at most 32 bits and can be a u32 instead
of unsigned long. The upper 32 bits are all 0 after masking and right
shifting cap by HPET_COUNTER_CLK_PERIOD_SHIFT and can be discarded.
Since do_div() casts the divisor to u32 anyway, changing the data type
of period to u32 also removes the following Coccinelle/coccicheck
warning reported by do_div.cocci:
WARNING: do_div() does a 64-by-32 division, please consider using div64_ul instead
Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240710215238.799239-2-thorsten.blum@toblux.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions