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KVM: PPC: Book3s HV: Fix tlbie compile error

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Some compilers complain about uninitialized variables in the compute_tlbie_rb
function. When you follow the code path you'll realize that we'll never get
to that point, but the compiler isn't all that smart.

So just default to 4k page sizes for everything, making the compiler happy
and the code slightly easier to read.

Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Alexander Graf 2014-06-11 17:13:55 +02:00
parent fb4188bad0
commit f6bf3a6622
1 changed files with 2 additions and 6 deletions
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8
arch/powerpc/include/asm/kvm_book3s_64.h
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@ -110,16 +110,12 @@ static inline int __hpte_actual_psize(unsigned int lp, int psize)
static inline unsigned long compute_tlbie_rb(unsigned long v, unsigned long r,
unsigned long pte_index)
{
int b_psize, a_psize;
int b_psize = MMU_PAGE_4K, a_psize = MMU_PAGE_4K;
unsigned int penc;
unsigned long rb = 0, va_low, sllp;
unsigned int lp = (r >> LP_SHIFT) & ((1 << LP_BITS) - 1);
if (!(v & HPTE_V_LARGE)) {
/* both base and actual psize is 4k */
b_psize = MMU_PAGE_4K;
a_psize = MMU_PAGE_4K;
} else {
if (v & HPTE_V_LARGE) {
for (b_psize = 0; b_psize < MMU_PAGE_COUNT; b_psize++) {
/* valid entries have a shift value */