A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 19:21:31 -04:00
Code Issues Projects Releases Packages Wiki Activity

tree-wide: convert open calls to remove spaces to skip_spaces() lib function

Browse source 
Makes use of skip_spaces() defined in lib/string.c for removing leading
spaces from strings all over the tree.

It decreases lib.a code size by 47 bytes and reuses the function tree-wide:
   text    data     bss     dec     hex filename
  64688     584     592   65864   10148 (TOTALS-BEFORE)
  64641     584     592   65817   10119 (TOTALS-AFTER)

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".

Julia Lawall tried the semantic patch (http://coccinelle.lip6.fr) below,
and found occurrences of this pattern on 3 more files:
    drivers/leds/led-class.c
    drivers/leds/ledtrig-timer.c
    drivers/video/output.c

@@
expression str;
@@

( // ignore skip_spaces cases
while (*str &&  isspace(*str)) { \(str++;\|++str;\) }
|
- *str &&
isspace(*str)
)

Signed-off-by: André Goddard Rosa <[email protected]>
Cc: Julia Lawall <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Jeff Dike <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Richard Purdie <[email protected]>
Cc: Neil Brown <[email protected]>
Cc: Kyle McMartin <[email protected]>
Cc: Henrique de Moraes Holschuh <[email protected]>
Cc: David Howells <[email protected]>
Cc: <[email protected]>
Cc: Samuel Ortiz <[email protected]>
Cc: Patrick McHardy <[email protected]>
Cc: Takashi Iwai <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
André Goddard Rosa 2009-12-14 18:01:06 -08:00 • committed by Linus Torvalds
commit e7d2860b69
24 changed files with 66 additions and 115 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/leds/led-class.c
View file

@ -50,7 +50,7 @@ static ssize_t led_brightness_store(struct device *dev,
unsigned long state = simple_strtoul(buf, &after, 10);
size_t count = after - buf;
if (*after && isspace(*after))
if (isspace(*after))
count++;
if (count == size) {

4
drivers/leds/ledtrig-timer.c
View file

@ -83,7 +83,7 @@ static ssize_t led_delay_on_store(struct device *dev,
unsigned long state = simple_strtoul(buf, &after, 10);
size_t count = after - buf;
if (*after && isspace(*after))
if (isspace(*after))
count++;
if (count == size) {
@ -127,7 +127,7 @@ static ssize_t led_delay_off_store(struct device *dev,
unsigned long state = simple_strtoul(buf, &after, 10);
size_t count = after - buf;
if (*after && isspace(*after))
if (isspace(*after))
count++;
if (count == size) {