linux/arch
Julia Lawall acfa922c5a [S390] s390: Remove redundant test
The loop above the modified code only terminates when rc is a valid pointer.

A simplified version of the semantic patch that makes this change is as
follows: (http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@r exists@
local idexpression x;
expression E;
position p1,p2;
@@

if (x@p1 == NULL || ...) { ... when forall
   return ...; }
... when != \(x=E\|x--\|x++\|--x\|++x\|x-=E\|x+=E\|x|=E\|x&=E\|&x\)
(
x@p2 == NULL
|
x@p2 != NULL
)

// another path to the test that is not through p1?
@s exists@
local idexpression r.x;
position r.p1,r.p2;
@@

... when != x@p1
(
x@p2 == NULL
|
x@p2 != NULL
)

@fix depends on !s@
position r.p1,r.p2;
expression x,E;
statement S1,S2;
@@

(
- if ((x@p2 != NULL) || ...)
  S1
|
- if ((x@p2 == NULL) && ...) S1
|
- BUG_ON(x@p2 == NULL);
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2008-12-25 13:39:17 +01:00
..
alpha alpha: pcibios_resource_to_bus() is callable from normal code 2008-11-30 10:03:37 -08:00
arm [ARM] Ensure linux/hardirqs.h is included where required 2008-12-15 10:34:48 +00:00
avr32 avr32: favr-32 build fix 2008-12-18 16:22:13 +01:00
blackfin Blackfin arch: fix a broken define in dma-mapping 2008-11-18 17:48:22 +08:00
cris [CRIS] Remove links from CRIS build 2008-10-31 23:37:57 +01:00
frv frv: fix mmap2 error handling 2008-12-01 19:55:24 -08:00
h8300 Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb 2008-10-23 08:20:34 -07:00
ia64 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-12-15 16:30:22 -08:00
m32r m32r: section noise in head.S 2008-11-30 10:03:37 -08:00
m68k m68k: Update defconfigs for 2.6.28-rc7 2008-12-02 20:58:26 +01:00
m68knommu container freezer: implement freezer cgroup subsystem 2008-10-20 08:52:34 -07:00
mips MIPS: MIPS64R2: Fix buggy __arch_swab64 2008-12-22 08:54:47 +00:00
mn10300 MN10300: Give correct size when reserving interrupt vector table 2008-12-10 13:34:33 -08:00
parisc parisc: disable UP-optimized flush_tlb_mm 2008-12-23 17:03:21 -08:00
powerpc [S390] arch_setup_additional_pages arguments 2008-12-25 13:38:54 +01:00
s390 [S390] s390: Remove redundant test 2008-12-25 13:39:17 +01:00
sh [S390] arch_setup_additional_pages arguments 2008-12-25 13:38:54 +01:00
sparc sparc: We need to implement arch_ptrace_stop(). 2008-12-16 21:55:44 -08:00
sparc64 sparc64: Sync FPU state in VIS emulation handler. 2008-12-04 09:12:57 -08:00
um uml: boot broken due to buffer overrun 2008-12-10 08:01:52 -08:00
x86 [S390] arch_setup_additional_pages arguments 2008-12-25 13:38:54 +01:00
xtensa Merge git://git.kernel.org/pub/scm/linux/kernel/git/czankel/xtensa-2.6 2008-10-23 09:16:56 -07:00
.gitignore
Kconfig remove __ARCH_WANT_COMPAT_SYS_PTRACE 2008-11-30 11:00:15 -08:00