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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2009-11-20 14:56:52 +0900 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-11-20 08:46:26 +0100 |
| commit | fbc543915ffb8ec5c35403f294ab799f1936f42a (patch) | |
| tree | 0ac4e394855c6105ab5ecfda66ed3ef01af3aa2f /sound | |
| parent | d867bba94513cf149cb8462a6e006848acb91d38 (diff) | |
| download | linux-fbc543915ffb8ec5c35403f294ab799f1936f42a.tar.gz linux-fbc543915ffb8ec5c35403f294ab799f1936f42a.tar.bz2 linux-fbc543915ffb8ec5c35403f294ab799f1936f42a.zip | |
ALSA: sound: usbmidi: Use hweight16
Use hweight16 instead of Brian Kernighan's/Peter Wegner's method
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/usb/usbmidi.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index 0eff19ceb7e1..e5b068996371 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c @@ -1062,15 +1062,6 @@ static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi* umidi, return 0; } -static unsigned int snd_usbmidi_count_bits(unsigned int x) -{ - unsigned int bits; - - for (bits = 0; x; ++bits) - x &= x - 1; - return bits; -} - /* * Frees an output endpoint. * May be called when ep hasn't been initialized completely. @@ -1914,8 +1905,8 @@ int snd_usb_create_midi_interface(struct snd_usb_audio* chip, out_ports = 0; in_ports = 0; for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { - out_ports += snd_usbmidi_count_bits(endpoints[i].out_cables); - in_ports += snd_usbmidi_count_bits(endpoints[i].in_cables); + out_ports += hweight16(endpoints[i].out_cables); + in_ports += hweight16(endpoints[i].in_cables); } err = snd_usbmidi_create_rawmidi(umidi, out_ports, in_ports); if (err < 0) { |