linux-toradex.git/arch/s390/kernel/debug.c, branch v2.6.35.7

[S390] avoid default_llseek in s390 drivers

2010-05-17T08:00:16+00:00

Use nonseekable_open for a couple of s390 device drivers. This avoids
the use of default_llseek function which has a dependency on the BKL.

Signed-off-by: Martin Schwidefsky

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

2009-12-15T16:53:32+00:00

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 
Cc: Julia Lawall 
Cc: Martin Schwidefsky 
Cc: Jeff Dike 
Cc: Ingo Molnar 
Cc: Thomas Gleixner 
Cc: "H. Peter Anvin" 
Cc: Richard Purdie 
Cc: Neil Brown 
Cc: Kyle McMartin 
Cc: Henrique de Moraes Holschuh 
Cc: David Howells 
Cc: 
Cc: Samuel Ortiz 
Cc: Patrick McHardy 
Cc: Takashi Iwai 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sysctl: Drop & in front of every proc_handler.

2009-11-18T16:37:40+00:00

For consistency drop & in front of every proc_handler.  Explicity
taking the address is unnecessary and it prevents optimizations
like stubbing the proc_handlers to NULL.

Cc: Alexey Dobriyan 
Cc: Ingo Molnar 
Cc: Joe Perches 
Signed-off-by: Eric W. Biederman

sysctl s390: Remove dead sysctl binary support

2009-11-12T10:05:01+00:00

Now that sys_sysctl is a generic wrapper around /proc/sys  .ctl_name
and .strategy members of sysctl tables are dead code.  Remove them.

Cc: Martin Schwidefsky 
Cc: Heiko Carstens 
Signed-off-by: Eric W. Biederman

sysctl: remove "struct file *" argument of ->proc_handler

2009-09-24T14:21:04+00:00

It's unused.

It isn't needed -- read or write flag is already passed and sysctl
shouldn't care about the rest.

It _was_ used in two places at arch/frv for some reason.

Signed-off-by: Alexey Dobriyan 
Cc: David Howells 
Cc: "Eric W. Biederman" 
Cc: Al Viro 
Cc: Ralf Baechle 
Cc: Martin Schwidefsky 
Cc: Ingo Molnar 
Cc: "David S. Miller" 
Cc: James Morris 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[SCSI] zfcp: Remove duplicated code for debug timestamps

2009-09-05T13:49:48+00:00

The timestamp calculation used for s390dbf output is the same in a
private zfcp function and in debug.c. Replace both with a common
inline function.

Reviewed-by: Swen Schillig 
Signed-off-by: Christof Schmitt 
Signed-off-by: James Bottomley

[S390] s390dbf: Remove needless check for NULL pointer.

2009-03-26T14:24:29+00:00

The check for NULL pointer has already be done before. Therefore we can remove
the second check.

Signed-off-by: Michael Holzheu 
Signed-off-by: Martin Schwidefsky

[S390] s390dbf: Remove redundant initilizations.

2009-03-26T14:24:29+00:00

Signed-off-by: Michael Holzheu 
Signed-off-by: Martin Schwidefsky

[S390] BUG to BUG_ON changes

2009-03-26T14:24:28+00:00

Signed-off-by: Stoyan Gaydarov 
Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

[S390] convert s390 debug feature printks to pr_xxx macros.

2008-12-25T12:39:22+00:00

Signed-off-by: Michael Holzheu 
Signed-off-by: Martin Schwidefsky