6.1-stable review patch. If anyone has any objections, please let me know.
------------------
From: Helge Deller <deller@xxxxxx>
commit 07eecff8ae78df7f28800484d31337e1f9bfca3a upstream.
The jump_table stores two 32-bit words and one 32- (on 32-bit kernel)
or one 64-bit word (on 64-bit kernel).
Ensure that the last word is always 64-bit aligned on a 64-bit kernel
by aligning the whole structure on sizeof(long).
Signed-off-by: Helge Deller <deller@xxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # v6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/parisc/include/asm/jump_label.h | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/arch/parisc/include/asm/jump_label.h b/arch/parisc/include/asm/jump_label.h
index af2a598bc0f8..94428798b6aa 100644
--- a/arch/parisc/include/asm/jump_label.h
+++ b/arch/parisc/include/asm/jump_label.h
@@ -15,10 +15,12 @@ static __always_inline bool arch_static_branch(struct static_key *key, bool bran
asm_volatile_goto("1:\n\t"
"nop\n\t"
".pushsection __jump_table, \"aw\"\n\t"
+ ".align %1\n\t"
".word 1b - ., %l[l_yes] - .\n\t"
__stringify(ASM_ULONG_INSN) " %c0 - .\n\t"
".popsection\n\t"
- : : "i" (&((char *)key)[branch]) : : l_yes);
+ : : "i" (&((char *)key)[branch]), "i" (sizeof(long))
+ : : l_yes);
return false;
l_yes:
@@ -30,10 +32,12 @@ static __always_inline bool arch_static_branch_jump(struct static_key *key, bool
asm_volatile_goto("1:\n\t"
"b,n %l[l_yes]\n\t"
".pushsection __jump_table, \"aw\"\n\t"
+ ".align %1\n\t"
".word 1b - ., %l[l_yes] - .\n\t"
__stringify(ASM_ULONG_INSN) " %c0 - .\n\t"
".popsection\n\t"
- : : "i" (&((char *)key)[branch]) : : l_yes);
+ : : "i" (&((char *)key)[branch]), "i" (sizeof(long))
+ : : l_yes);
return false;
l_yes:
--
2.43.0
