Re: [PATCH] drm/via: fix assignment in if condition

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On Wed, Nov 18, 2020 at 03:40:19AM -0800, Bernard Zhao wrote:
> Fix check_patch.pl warning:
> ERROR: do not use assignment in if condition
> +                       if ((HALCYON_HEADER2 == (cmd = *buf)) &&
> 
> ERROR: do not use assignment in if condition
> +                       if (HALCYON_HEADER2 == (cmd = *buf))
> 
> Signed-off-by: Bernard Zhao <bernard@xxxxxxxx>

Applied, thanks for your patch.
-Daniel

> ---
>  drivers/gpu/drm/via/via_verifier.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/via/via_verifier.c b/drivers/gpu/drm/via/via_verifier.c
> index 8d8135f424ef..3d6e3a70f318 100644
> --- a/drivers/gpu/drm/via/via_verifier.c
> +++ b/drivers/gpu/drm/via/via_verifier.c
> @@ -1001,8 +1001,8 @@ via_verify_command_stream(const uint32_t * buf, unsigned int size,
>  			state = via_check_vheader6(&buf, buf_end);
>  			break;
>  		case state_command:
> -			if ((HALCYON_HEADER2 == (cmd = *buf)) &&
> -			    supported_3d)
> +			cmd = *buf;
> +			if ((cmd == HALCYON_HEADER2) && supported_3d)
>  				state = state_header2;
>  			else if ((cmd & HALCYON_HEADER1MASK) == HALCYON_HEADER1)
>  				state = state_header1;
> @@ -1064,7 +1064,8 @@ via_parse_command_stream(struct drm_device *dev, const uint32_t *buf,
>  			state = via_parse_vheader6(dev_priv, &buf, buf_end);
>  			break;
>  		case state_command:
> -			if (HALCYON_HEADER2 == (cmd = *buf))
> +			cmd = *buf;
> +			if (cmd == HALCYON_HEADER2)
>  				state = state_header2;
>  			else if ((cmd & HALCYON_HEADER1MASK) == HALCYON_HEADER1)
>  				state = state_header1;
> -- 
> 2.29.0
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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