Commit 62f09c3d authored Feb 27, 2006 by Clemens Ladisch Committed by Jaroslav Kysela Mar 22, 2006

[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>

parent 62c5549e

sound/usb/usbmidi.c

+3 −3

Original line number	Diff line number	Diff line
		@@ -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;
		}