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| author | Clemens Ladisch <clemens@ladisch.de> | 2006-02-27 09:53:03 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2006-03-22 10:31:19 +0100 |
| commit | 62f09c3d321c82981ae3f2dd7e32bc4c73379a7e (patch) | |
| tree | 0faf32e373caaf63f53cc2ae9f03b80379620753 /sound/usb | |
| parent | 62c5549ee246fa30606f918f97c6b3cde2831292 (diff) | |
| download | linux-3.10-62f09c3d321c82981ae3f2dd7e32bc4c73379a7e.tar.gz linux-3.10-62f09c3d321c82981ae3f2dd7e32bc4c73379a7e.tar.bz2 linux-3.10-62f09c3d321c82981ae3f2dd7e32bc4c73379a7e.zip | |
[ALSA] usb-audio: optimize snd_usbmidi_count_bits()
Modules: USB generic driver
Reduce the code size of the snd_usbmidi_count_bits() function by using
simpler operations.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/usbmidi.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index 7580339dba2..2b9d940c806 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c @@ -871,10 +871,10 @@ static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi* umidi, static unsigned int snd_usbmidi_count_bits(unsigned int x) { - unsigned int bits = 0; + unsigned int bits; - for (; x; x >>= 1) - bits += x & 1; + for (bits = 0; x; ++bits) + x &= x - 1; return bits; } |