This patch adds one helper function 'vmx_reserve_addr' which computes
quad word aligned pointer for vmx_reserve array element in sigcontext
structure making the code more readable.
Signed-off-by: Anshuman Khandual <khand...@linux.vnet.ibm.com>
---
arch/powerpc/kernel/signal_64.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index c7c24d2..e8762f5 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -73,6 +73,12 @@ static const char fmt32[] = KERN_INFO \
static const char fmt64[] = KERN_INFO \
"%s[%d]: bad frame in %s: %016lx nip %016lx lr %016lx\n";
+static elf_vrreg_t __user *vmx_reserve_addr(struct sigcontext __user *sc)
+{
+ return (elf_vrreg_t __user *)
+ (((unsigned long)sc->vmx_reserve + 15) & ~0xful);
+}
+
/*
* Set up the sigcontext for the signal frame.
*/
@@ -90,7 +96,7 @@ static long setup_sigcontext(struct sigcontext __user *sc,
struct pt_regs *regs,
* v_regs pointer or not
*/
#ifdef CONFIG_ALTIVEC
- elf_vrreg_t __user *v_regs = (elf_vrreg_t __user *)(((unsigned
long)sc->vmx_reserve + 15) & ~0xful);
+ elf_vrreg_t __user *v_regs = vmx_reserve_addr(sc);
#endif
unsigned long msr = regs->msr;
long err = 0;
@@ -181,10 +187,8 @@ static long setup_tm_sigcontexts(struct sigcontext __user
*sc,
* v_regs pointer or not.
*/
#ifdef CONFIG_ALTIVEC
- elf_vrreg_t __user *v_regs = (elf_vrreg_t __user *)
- (((unsigned long)sc->vmx_reserve + 15) & ~0xful);
- elf_vrreg_t __user *tm_v_regs = (elf_vrreg_t __user *)
- (((unsigned long)tm_sc->vmx_reserve + 15) & ~0xful);
+ elf_vrreg_t __user *v_regs = vmx_reserve_addr(sc);
+ elf_vrreg_t __user *tm_v_regs = vmx_reserve_addr(tm_sc);
#endif
unsigned long msr = regs->msr;
long err = 0;
--
2.1.0
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