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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2013-07-03 13:50:03 +0530 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-07-24 14:42:21 +1000 |
| commit | 83383b73ad5fbf52ea4b77aed900a927875f2529 (patch) | |
| tree | 96eddb6a5a0a2c5a5f0fbc8134c77b4c7e3fe705 /arch/powerpc/mm/hash_native_64.c | |
| parent | ad92c615975a57c4b206c5c99f77a0bf22b373c4 (diff) | |
| download | linux-83383b73ad5fbf52ea4b77aed900a927875f2529.tar.gz | |
powerpc/mm: Fix fallthrough bug in hpte_decode
We should not fallthrough different case statements in hpte_decode. Add
break statement to break out of the switch. The regression is introduced by
dcda287a9b26309ae43a091d0ecde16f8f61b4c0 "powerpc/mm: Simplify hpte_decode"
Reported-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/mm/hash_native_64.c')
| -rw-r--r-- | arch/powerpc/mm/hash_native_64.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index 3f0c30ae4791db..0530ff78c023fa 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c @@ -554,6 +554,7 @@ static void hpte_decode(struct hash_pte *hpte, unsigned long slot, seg_off |= vpi << shift; } *vpn = vsid << (SID_SHIFT - VPN_SHIFT) | seg_off >> VPN_SHIFT; + break; case MMU_SEGSIZE_1T: /* We only have 40 - 23 bits of seg_off in avpn */ seg_off = (avpn & 0x1ffff) << 23; @@ -563,6 +564,7 @@ static void hpte_decode(struct hash_pte *hpte, unsigned long slot, seg_off |= vpi << shift; } *vpn = vsid << (SID_SHIFT_1T - VPN_SHIFT) | seg_off >> VPN_SHIFT; + break; default: *vpn = size = 0; } |