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(parent: c783837) | patch
mmc: don't use weight32()
authorNicolas Pitre <nico@cam.org>
Thu, 11 Oct 2007 05:06:03 +0000 (01:06 -0400)
committerPierre Ossman <drzeus@drzeus.cx>
Thu, 11 Oct 2007 17:09:08 +0000 (19:09 +0200)
commit019a5f56ec195aceadada18aaaad0f67294bdaef
treed31830cf7ec683ef6fd6719236011c9ded649847tree | snapshot
parentc783837bc69dd0f329a441c1704f5a02d01d1bd5commit | diff
mmc: don't use weight32()

Using weight32() to determine if a value is a power of 2 is a rather
heavi weight solution.  The classic idiom is (x & (x - 1)) == 0, but
the kernel already provide a is_power_of_2 function for it.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
drivers/mmc/host/mmci.c diff | blob | history
drivers/mmc/host/tifm_sd.c diff | blob | history
Domain: System / Uncategorized;