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PARISC fixes on 20120831

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This is a set of two bug fixes.  One is the ATOMIC problem which is now
 causing a compile failure in certain situations.  The other is mishandling of
 PER_LINUX32 which may also cause user visible effects.
 
 Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6

Pull PARISC fixes from James Bottomley:
 "This is a set of two bug fixes.  One is the ATOMIC problem which is
  now causing a compile failure in certain situations.  The other is
  mishandling of PER_LINUX32 which may also cause user visible effects.

  Signed-off-by: James Bottomley <JBottomley@Parallels.com>"

* tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
  [PARISC] fix personality flag check in copy_thread()
  [PARISC] Redefine ATOMIC_INIT and ATOMIC64_INIT to drop the casts
This commit is contained in:
Linus Torvalds 2012-08-31 17:02:20 -07:00
commit a16d9d25c3
3 changed files with 7 additions and 7 deletions
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4
arch/parisc/include/asm/atomic.h
View file

@ -141,7 +141,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
#define atomic_sub_and_test(i,v) (atomic_sub_return((i),(v)) == 0)
#define ATOMIC_INIT(i) ((atomic_t) { (i) })
#define ATOMIC_INIT(i) { (i) }
#define smp_mb__before_atomic_dec() smp_mb()
#define smp_mb__after_atomic_dec() smp_mb()
@ -150,7 +150,7 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u)
#ifdef CONFIG_64BIT
#define ATOMIC64_INIT(i) ((atomic64_t) { (i) })
#define ATOMIC64_INIT(i) { (i) }
static __inline__ s64
__atomic64_add_return(s64 i, atomic64_t *v)

2
arch/parisc/kernel/process.c
View file

@ -309,7 +309,7 @@ copy_thread(unsigned long clone_flags, unsigned long usp,
cregs->ksp = (unsigned long)stack
+ (pregs->gr[21] & (THREAD_SIZE - 1));
cregs->gr[30] = usp;
if (p->personality == PER_HPUX) {
if (personality(p->personality) == PER_HPUX) {
#ifdef CONFIG_HPUX
cregs->kpc = (unsigned long) &hpux_child_return;
#else

8
arch/parisc/kernel/sys_parisc.c
View file

@ -225,12 +225,12 @@ long parisc_personality(unsigned long personality)
long err;
if (personality(current->personality) == PER_LINUX32
&& personality == PER_LINUX)
personality = PER_LINUX32;
&& personality(personality) == PER_LINUX)
personality = (personality & ~PER_MASK) | PER_LINUX32;
err = sys_personality(personality);
if (err == PER_LINUX32)
err = PER_LINUX;
if (personality(err) == PER_LINUX32)
err = (err & ~PER_MASK) | PER_LINUX;
return err;
}