linux/drivers/pnp
André Goddard Rosa e7d2860b69 tree-wide: convert open calls to remove spaces to skip_spaces() lib function
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 <andre.goddard@gmail.com>
Cc: Julia Lawall <julia@diku.dk>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Neil Brown <neilb@suse.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: David Howells <dhowells@redhat.com>
Cc: <linux-ext4@vger.kernel.org>
Cc: Samuel Ortiz <samuel@sortiz.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15 08:53:32 -08:00
..
isapnp Merge branch 'linus' into test 2008-10-23 00:11:07 -04:00
pnpacpi ACPI: remove acpi_device.flags.hardware_id 2009-09-25 15:09:48 -04:00
pnpbios tree-wide: fix assorted typos all over the place 2009-12-04 15:39:55 +01:00
base.h Merge branch 'linus' into test 2008-10-23 00:11:07 -04:00
card.c dma-mapping: replace all DMA_24BIT_MASK macro with DMA_BIT_MASK(24) 2009-04-07 08:31:12 -07:00
core.c dma-mapping: replace all DMA_24BIT_MASK macro with DMA_BIT_MASK(24) 2009-04-07 08:31:12 -07:00
driver.c pnp: add a shutdown method to pnp drivers 2009-09-22 07:17:49 -07:00
interface.c tree-wide: convert open calls to remove spaces to skip_spaces() lib function 2009-12-15 08:53:32 -08:00
Kconfig PNP: remove old CONFIG_PNP_DEBUG option 2008-10-10 23:35:33 -04:00
Makefile Merge branch 'linus' into test 2008-10-23 00:11:07 -04:00
manager.c PNP: convert to using pnp_dbg() 2008-10-10 23:34:33 -04:00
quirks.c vsprintf: use %pR, %pr instead of %pRt, %pRf 2009-11-04 13:06:41 -08:00
resource.c vsprintf: use %pR, %pr instead of %pRt, %pRf 2009-11-04 13:06:41 -08:00
support.c vsprintf: use %pR, %pr instead of %pRt, %pRf 2009-11-04 13:06:41 -08:00
system.c vsprintf: use %pR, %pr instead of %pRt, %pRf 2009-11-04 13:06:41 -08:00