linux-kernel - Re: [PATCH v4 12/12] tree-wide: convert open calls to remove spaces to skip

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Date:	Sun, 15 Nov 2009 04:19:04 -0200
From:	André Goddard Rosa <andre.goddard@...il.com>
To:	Julia Lawall <julia@...u.dk>
Cc:	linux list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 12/12] tree-wide: convert open calls to remove spaces 
	to skip_spaces() lib function

[stripped very long cc: line]

On Sun, Nov 8, 2009 at 6:23 PM, Julia Lawall <julia@...u.dk> wrote:
>> > Also, while at it, if we see (*str && isspace(*str)), we can be sure to
>> > remove the first condition (*str) as the second one (isspace(*str)) also
>> > evaluates to 0 whenever *str == 0, making it redundant. In other words,
>> > "a char equals zero is never a space".
>
> I tried the following semantic patch (http://coccinelle.lip6.fr), and got
> the results below.
>
> @@
> expression str;
> @@
>
> ( // ignore skip_spaces cases
>  while (*str &&  isspace(*str)) { \(str++;\|++str;\) }
> |
> - *str &&
>  isspace(*str)
> )
>
> I haven't checked the results in any way, however.
>
> julia
>

Hi, Julia!

    Your patch looks good, but it conflicted at the following files
when I tried to apply it:

> diff -u -p a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
> diff -u -p a/drivers/video/display/display-sysfs.c b/drivers/video/display/display-sysfs.c

    That's because I had changed them as well.
    The other ones you spotted I haven't seen originally:

> diff -u -p a/drivers/leds/led-class.c b/drivers/leds/led-class.c
> diff -u -p a/drivers/leds/ledtrig-timer.c b/drivers/leds/ledtrig-timer.c
> diff -u -p a/drivers/video/output.c b/drivers/video/output.c

    Do you mind sending another patch or do you want me folding these in?

Thank you,
André
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