[PATCH] drm/radeon: change function signature to pass full range

[Mathieu Malaterre]

On Fri, Apr 13, 2018 at 9:59 AM Huang Rui <ray.huang at amd.com> wrote:

> On Thu, Apr 12, 2018 at 09:33:33PM +0200, Mathieu Malaterre wrote:
> > In function ‘radeon_process_i2c_ch’ a comparison of a u8 value against
> > 255 is done. Since it is always false, change the signature of this
> > function to use an `int` instead, which match the type used in caller:
> > `radeon_atom_hw_i2c_xfer`.
> >
> > Fix the following warning triggered with W=1:
> >
> >   CC [M]  drivers/gpu/drm/radeon/atombios_i2c.o
> >   drivers/gpu/drm/radeon/atombios_i2c.c: In function
> ‘radeon_process_i2c_ch’:
> >   drivers/gpu/drm/radeon/atombios_i2c.c:71:11: warning: comparison is
> always false due to limited range of data type [-Wtype-limits]
> >    if (num > ATOM_MAX_HW_I2C_READ) {
> >            ^
> >
> > Signed-off-by: Mathieu Malaterre <malat at debian.org>
>
> Reviewed-by: Huang Rui <ray.huang at amd.com>
>
>
Any chance to be included in the next pull request ? thanks


> > ---
> >  drivers/gpu/drm/radeon/atombios_i2c.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/radeon/atombios_i2c.c
> b/drivers/gpu/drm/radeon/atombios_i2c.c
> > index 4157780585a0..9022e9af11a0 100644
> > --- a/drivers/gpu/drm/radeon/atombios_i2c.c
> > +++ b/drivers/gpu/drm/radeon/atombios_i2c.c
> > @@ -35,7 +35,7 @@
> >
> >  static int radeon_process_i2c_ch(struct radeon_i2c_chan *chan,
> >                                u8 slave_addr, u8 flags,
> > -                              u8 *buf, u8 num)
> > +                              u8 *buf, int num)
> >  {
> >       struct drm_device *dev = chan->dev;
> >       struct radeon_device *rdev = dev->dev_private;
> > --
> > 2.11.0
> >
> > _______________________________________________
> > amd-gfx mailing list
> > amd-gfx at lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>
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