linux-kernel - Re: [PATCH] drm/radeon: change function signature to pass full range

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Date:   Mon, 17 Sep 2018 17:45:42 -0400
From:   Alex Deucher <alexdeucher@...il.com>
To:     Mathieu Malaterre <malat@...ian.org>
Cc:     Huang Rui <ray.huang@....com>, Chunming Zhou <David1.Zhou@....com>,
        Dave Airlie <airlied@...ux.ie>,
        LKML <linux-kernel@...r.kernel.org>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>,
        "Deucher, Alexander" <alexander.deucher@....com>,
        Christian Koenig <christian.koenig@....com>
Subject: Re: [PATCH] drm/radeon: change function signature to pass full range

On Mon, Sep 17, 2018 at 4:29 PM Mathieu Malaterre <malat@...ian.org> wrote:
>
>
>
> On Fri, Apr 13, 2018 at 9:59 AM Huang Rui <ray.huang@....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@...ian.org>
>>
>> Reviewed-by: Huang Rui <ray.huang@....com>
>>
>
> Any chance to be included in the next pull request ? thanks

Applied.  thanks for the reminder.

Alex

>
>>
>> > ---
>> >  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@...ts.freedesktop.org
>> > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx

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