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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2018-10-08 15:08:31 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2018-12-22 21:43:55 +1100
commit505a314fb28ce122091691c51426fa85c084e115 (patch)
treedf273dfd6018e3812046de00f1e894c31cd7751e /arch/powerpc
parentf1e0addca8bd7386f8cabbc64c9988fff91c131f (diff)
downloadlinux-505a314fb28ce122091691c51426fa85c084e115.tar.bz2
powerpc: Fix HMIs on big-endian with CONFIG_RELOCATABLE=y
HMIs will crash the kernel due to BRANCH_LINK_TO_FAR(hmi_exception_realmode) Calling into the OPD instead of the actual code. Fixes: 2337d207288f ("powerpc/64: CONFIG_RELOCATABLE support for hmi interrupts") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [mpe: Use DOTSYM() rather than #ifdef] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 89d32bb79d5e..ed3d6fa8be53 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1031,7 +1031,7 @@ TRAMP_REAL_BEGIN(hmi_exception_early)
EXCEPTION_PROLOG_COMMON_2(PACA_EXGEN)
EXCEPTION_PROLOG_COMMON_3(0xe60)
addi r3,r1,STACK_FRAME_OVERHEAD
- BRANCH_LINK_TO_FAR(hmi_exception_realmode) /* Function call ABI */
+ BRANCH_LINK_TO_FAR(DOTSYM(hmi_exception_realmode)) /* Function call ABI */
cmpdi cr0,r3,0
/* Windup the stack. */