At Fri, 5 Apr 2013 20:49:46 +0200, Eldad Zack wrote: > > The usb_control_msg() function expects __u16 types and performs > the endianness conversions by itself. > However, in three places, a conversion is performed before it is > handed over to usb_control_msg(), which leads to a double conversion > (= no conversion): > * snd_usb_nativeinstruments_boot_quirk() > * snd_nativeinstruments_control_get() > * snd_nativeinstruments_control_put() > > Caught by sparse: > > sound/usb/mixer_quirks.c:512:38: warning: incorrect type in argument 6 (different base types) > sound/usb/mixer_quirks.c:512:38: expected unsigned short [unsigned] [usertype] index > sound/usb/mixer_quirks.c:512:38: got restricted __le16 [usertype] <noident> > sound/usb/mixer_quirks.c:543:35: warning: incorrect type in argument 5 (different base types) > sound/usb/mixer_quirks.c:543:35: expected unsigned short [unsigned] [usertype] value > sound/usb/mixer_quirks.c:543:35: got restricted __le16 [usertype] <noident> > sound/usb/mixer_quirks.c:543:56: warning: incorrect type in argument 6 (different base types) > sound/usb/mixer_quirks.c:543:56: expected unsigned short [unsigned] [usertype] index > sound/usb/mixer_quirks.c:543:56: got restricted __le16 [usertype] <noident> > sound/usb/quirks.c:502:35: warning: incorrect type in argument 5 (different base types) > sound/usb/quirks.c:502:35: expected unsigned short [unsigned] [usertype] value > sound/usb/quirks.c:502:35: got restricted __le16 [usertype] <noident> > > Signed-off-by: Eldad Zack <eldad@xxxxxxxxxxxxxxx> Thanks, applied to for-linus branch. Takashi > --- > sound/usb/mixer_quirks.c | 4 ++-- > sound/usb/quirks.c | 2 +- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c > index 497d274..ebe9144 100644 > --- a/sound/usb/mixer_quirks.c > +++ b/sound/usb/mixer_quirks.c > @@ -509,7 +509,7 @@ static int snd_nativeinstruments_control_get(struct snd_kcontrol *kcontrol, > else > ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), bRequest, > USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN, > - 0, cpu_to_le16(wIndex), > + 0, wIndex, > &tmp, sizeof(tmp), 1000); > up_read(&mixer->chip->shutdown_rwsem); > > @@ -540,7 +540,7 @@ static int snd_nativeinstruments_control_put(struct snd_kcontrol *kcontrol, > else > ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), bRequest, > USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_OUT, > - cpu_to_le16(wValue), cpu_to_le16(wIndex), > + wValue, wIndex, > NULL, 0, 1000); > up_read(&mixer->chip->shutdown_rwsem); > > diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c > index a2ac004..68e9220 100644 > --- a/sound/usb/quirks.c > +++ b/sound/usb/quirks.c > @@ -499,7 +499,7 @@ static int snd_usb_nativeinstruments_boot_quirk(struct usb_device *dev) > { > int ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), > 0xaf, USB_TYPE_VENDOR | USB_RECIP_DEVICE, > - cpu_to_le16(1), 0, NULL, 0, 1000); > + 1, 0, NULL, 0, 1000); > > if (ret < 0) > return ret; > -- > 1.8.1.5 > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel