From fbc543915ffb8ec5c35403f294ab799f1936f42a Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Fri, 20 Nov 2009 14:56:52 +0900 Subject: [PATCH] ALSA: sound: usbmidi: Use hweight16 Use hweight16 instead of Brian Kernighan's/Peter Wegner's method Signed-off-by: Akinobu Mita Signed-off-by: Takashi Iwai --- sound/usb/usbmidi.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index 0eff19ceb7e..e5b06899637 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) { -- 2.20.1