Use hweight16 instead of Brian Kernighan's/Peter Wegner's method
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Cc: Jaroslav Kysela <perex@xxxxxxxx>
Cc: Takashi Iwai <tiwai@xxxxxxx>
Cc: alsa-devel@xxxxxxxxxxxxxxxx
Cc: Clemens Ladisch <clemens@xxxxxxxxxx>
---
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 0eff19c..e5b0689 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) {
--
1.6.5.1
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