linux-kernel - Re: [PATCH 33/33] Staging: android: ion: ion.c: Compression of lines for

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Date:	Sat, 30 Jul 2016 23:23:02 -0700
From:	Laura Abbott <labbott@...hat.com>
To:	Nadim almas <nadim.902@...il.com>
Cc:	gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
	devel@...verdev.osuosl.org
Subject: Re: [PATCH 33/33] Staging: android: ion: ion.c: Compression of lines
 for

On 07/30/2016 09:11 AM, Nadim almas wrote:
> This patch compresses two lines in to a single line in file ion.c
> if immediate return statement is found. It also removes variable
> bytes_written as it is no longer needed.
>

This still says bytes_written.

None of the patches after your first one apply for me. Plus I think
there is still a warning from ion_phys due to an unused variable.

Please double check your patches before sending and make sure _all_
comments are addressed before resending, especially since some of them
have been mentioned multiple times now.

In the future if you send different versions of the same patch please
number it (PATCH, PATCHv2, PATCHv3 etc.) to make it easier to review.

Apart from all that, I'm going to NAK this for now. I have some clean
up get rid of ion_phys that I'm going to resend after the merge window
ends. After that is sent, if you want to (correctly) send a patch
to clean up ion_handle_put_nolock I will look at it then.

Thanks,
Laura

> It is done using script Coccinelle. And coccinelle uses following semantic
> patch for this compression function:
>
>
> @@
> expression e, ret;
> @@
>
> -ret =
> +return
>      e;
> -return ret;
>
> Signed-off-by: Nadim Almas <nadim.902@...il.com>
> ---
>  drivers/staging/android/ion/ion.c          | 8 +++-----
>  1 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
> index 52345df..271395b 100644
> --- a/drivers/staging/android/ion/ion.c
> +++ b/drivers/staging/android/ion/ion.c
> @@ -391,9 +391,7 @@ static int ion_handle_put_nolock(struct ion_handle *handle)
>  {
> -	int ret;
>
> -	ret = kref_put(&handle->ref, ion_handle_destroy);
> -
> -	return ret;
> +	return kref_put(&handle->ref, ion_handle_destroy);
>  }
>
>  static int ion_handle_put(struct ion_handle *handle)
> @@ -597,8 +595,8 @@ int ion_phys(struct ion_client *client, struct ion_handle *handle,
>  		return -ENODEV;
>  	}
>  	mutex_unlock(&client->lock);
> -	ret = buffer->heap->ops->phys(buffer->heap, buffer, addr, len);
> -	return ret;
> +	return buffer->heap->ops->phys(buffer->heap, buffer, addr, len);
>  }
>  EXPORT_SYMBOL(ion_phys);
>
>
>