Re: [PATCH] Use BIT macro instead of (1 << HSDMA_GLO_BT_SHIFT)

* Re: [PATCH] Use BIT macro instead of (1 << HSDMA_GLO_BT_SHIFT)
  2021-09-02 11:52 [PATCH] Use BIT macro instead of (1 << HSDMA_GLO_BT_SHIFT) Krish Jain
@ 2021-09-02  5:30 ` Greg KH
  2021-09-02  5:46   ` Krish Jain
  2021-09-03  8:10 ` Dan Carpenter
  1 sibling, 1 reply; 7+ messages in thread
From: Greg KH @ 2021-09-02  5:30 UTC (permalink / raw)
  To: Krish Jain; +Cc: linux-staging

On Thu, Sep 02, 2021 at 01:52:15PM +0200, Krish Jain wrote:
> This patch replaces (1 << HSDMA_GLO_BT_SHIFT) with the BIT(x) macro, as suggested by checkpatch.pl, for the file drivers/staging/mt7621-dma/hsdma-mt7621.c .
> 
> Signed-off-by: Krish Jain <krishjain02939@gmail.com>
> 
> ---
>  drivers/staging/mt7621-dma/hsdma-mt7621.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/staging/mt7621-dma/hsdma-mt7621.c b/drivers/staging/mt7621-dma/hsdma-mt7621.c
> index 89b72a802800..a99cec876110 100644
> --- a/drivers/staging/mt7621-dma/hsdma-mt7621.c
> +++ b/drivers/staging/mt7621-dma/hsdma-mt7621.c
> @@ -72,7 +72,7 @@
>  #define HSDMA_GLO_TX_DMA		BIT(0)
>  
>  #define HSDMA_BT_SIZE_16BYTES		(0 << HSDMA_GLO_BT_SHIFT)
> -#define HSDMA_BT_SIZE_32BYTES		(1 << HSDMA_GLO_BT_SHIFT)
> +#define HSDMA_BT_SIZE_32BYTES		BIT(HSDMA_GLO_BT_SHIFT)
>  #define HSDMA_BT_SIZE_64BYTES		(2 << HSDMA_GLO_BT_SHIFT)
>  #define HSDMA_BT_SIZE_128BYTES		(3 << HSDMA_GLO_BT_SHIFT)
>  
> @@ -164,8 +164,7 @@ struct mtk_hsdam_engine {
>  
>  static inline struct mtk_hsdam_engine *mtk_hsdma_chan_get_dev(struct mtk_hsdma_chan *chan)
>  {
> -	return container_of(chan->vchan.chan.device, struct mtk_hsdam_engine,
> -			ddev);
> +	return container_of(chan->vchan.chan.device, struct mtk_hsdam_engine, ddev);
>  }
>  
>  static inline struct mtk_hsdma_chan *to_mtk_hsdma_chan(struct dma_chan *c)
> -- 
> 2.25.1
> 
> 

Hi,

This is the friendly patch-bot of Greg Kroah-Hartman.  You have sent him
a patch that has triggered this response.  He used to manually respond
to these common problems, but in order to save his sanity (he kept
writing the same thing over and over, yet to different people), I was
created.  Hopefully you will not take offence and will fix the problem
in your patch and resubmit it so that it can be accepted into the Linux
kernel tree.

You are receiving this message because of the following common error(s)
as indicated below:

- Your patch did many different things all at once, making it difficult
  to review.  All Linux kernel patches need to only do one thing at a
  time.  If you need to do multiple things (such as clean up all coding
  style issues in a file/driver), do it in a sequence of patches, each
  one doing only one thing.  This will make it easier to review the
  patches to ensure that they are correct, and to help alleviate any
  merge issues that larger patches can cause.

- You did not write a descriptive Subject: for the patch, allowing Greg,
  and everyone else, to know what this patch is all about.  Please read
  the section entitled "The canonical patch format" in the kernel file,
  Documentation/SubmittingPatches for what a proper Subject: line should
  look like.

If you wish to discuss this problem further, or you have questions about
how to resolve this issue, please feel free to respond to this email and
Greg will reply once he has dug out from the pending patches received
from other developers.

thanks,

greg k-h's patch email bot

^ permalink raw reply	[flat|nested] 7+ messages in thread