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| author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2015-11-02 22:55:05 +0300 |
|---|---|---|
| committer | Nicolas Pitre <nicolas.pitre@linaro.org> | 2015-11-16 22:14:03 +0300 |
| commit | 911918aa7ef6f868c135505b0015e42072c54682 (patch) | |
| tree | b12a768b34d0461978276533b73436c4494fe71f /init | |
| parent | 1c07db46511f0d2335d3b32008f644164071d13e (diff) | |
| download | linux-911918aa7ef6f868c135505b0015e42072c54682.tar.xz | |
div64.h: optimize do_div() for power-of-two constant divisors
Let's perform the obvious mask and shift operation in this case.
On 32-bit targets, gcc is able to do the same thing with a constant
divisor that happens to be a power of two i.e. it turns the division
into an inline shift, but it doesn't hurt to be explicit.
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions