linux-kernel - Re: [PATCH 2/2] staging: binder: Code simplification

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Date:	Tue, 25 Mar 2014 15:21:48 -0700
From:	Joe Perches <joe@...ches.com>
To:	Mathieu Maret <mathieu.maret@...il.com>
Cc:	linux-kernel@...r.kernel.org, arve@...roid.com,
	gregkh@...uxfoundation.org
Subject: Re: [PATCH 2/2] staging: binder: Code simplification

On Tue, 2014-03-25 at 23:03 +0100, Mathieu Maret wrote:
> Remove duplicate code
[]
> diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
[]
> @@ -2685,11 +2685,9 @@ static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
>  		break;
>  	case BINDER_VERSION: {
>  		struct binder_version __user *ver = ubuf;
> -		if (size != sizeof(struct binder_version)) {
> -			ret = -EINVAL;
> -			goto err;
> -		}
> -		if (put_user(BINDER_CURRENT_PROTOCOL_VERSION,
> +
> +		if (size != sizeof(struct binder_version) ||
> +			put_user(BINDER_CURRENT_PROTOCOL_VERSION,
>  			&ver->protocol_version)) {

When you do this, please align continuations at the appropriate
open parenthesis using maximal initial tabs and minimal spaces
for alignment.

		if (size != sizeof(struct binder_version) ||
		    put_user(BINDER_CURRENT_PROTOCOL_VERSION,
			     &ver->protocol_version)) {

2 tabs then 4 spaces then "put_user"
3 tabs then 5 spaces then "&ver->"

using scripts/checkpatch.pl --strict should alert you to this.

And, either don't submit this until after 3.15-rc1 is out
and Greg KH starts taking patches again, or expect to be
very patient about getting any update on this.

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