From: Greg Kroah-Hartman gregkh@linuxfoundation.org
From: Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com
commit cea15316ceee2d4a51dfdecd79e08a438135416c upstream.
'lis r2,N' is 'addis r2,0,N' and the instruction encoding in the macro LIS_R2 is incorrect (it currently maps to 'addis r0,r2,N'). Fix the same.
Fixes: c71b7eff426f ("powerpc: Add ABIv2 support to ppc_function_entry") Cc: stable@vger.kernel.org # v3.16+ Reported-by: Jiri Olsa jolsa@redhat.com Signed-off-by: Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com Acked-by: Segher Boessenkool segher@kernel.crashing.org Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20210304020411.16796-1-naveen.n.rao@linux.vnet.ibm... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/include/asm/code-patching.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/powerpc/include/asm/code-patching.h +++ b/arch/powerpc/include/asm/code-patching.h @@ -51,7 +51,7 @@ void __patch_exception(int exc, unsigned #endif
#define OP_RT_RA_MASK 0xffff0000UL -#define LIS_R2 0x3c020000UL +#define LIS_R2 0x3c400000UL #define ADDIS_R2_R12 0x3c4c0000UL #define ADDI_R2_R2 0x38420000UL