The following build warning have been reported:
arch/powerpc/kvm/book3s_hv_rmhandlers.o: warning: objtool: .text+0xe84:
intra_function_call not a direct call
arch/powerpc/kernel/switch.o: warning: objtool: .text+0x4:
intra_function_call not a direct call
This happens due to commit bb7f054f4de2 ("objtool/powerpc: Add support
for decoding all types of uncond branches") because that commit decodes
'bl .+4' as a normal instruction because that instruction is used by
clang instead of 'bcl 20,31,+.4' for relocatable code.
The solution is simply to remove the ANNOTATE_INTRA_FUNCTION_CALL
annotation now that the instruction is not seen as a function call
anymore.
Reported-by: Venkat Rao Bagalkote <venka...@linux.ibm.com>
Closes:
https://lore.kernel.org/all/8c4c3fc2-2bd7-4148-af68-2f504d611...@linux.ibm.com
Fixes: bb7f054f4de2 ("objtool/powerpc: Add support for decoding all types of
uncond branches")
Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu>
---
arch/powerpc/kernel/switch.S | 1 -
arch/powerpc/kvm/book3s_hv_rmhandlers.S | 2 --
2 files changed, 3 deletions(-)
diff --git a/arch/powerpc/kernel/switch.S b/arch/powerpc/kernel/switch.S
index 608c0ce7cec6..59e3ee99db0e 100644
--- a/arch/powerpc/kernel/switch.S
+++ b/arch/powerpc/kernel/switch.S
@@ -39,7 +39,6 @@ flush_branch_caches:
// Flush the link stack
.rept 64
- ANNOTATE_INTRA_FUNCTION_CALL
bl .+4
.endr
b 1f
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index ea7ad200b330..83f7504349d2 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1524,14 +1524,12 @@ kvm_flush_link_stack:
/* Flush the link stack. On Power8 it's up to 32 entries in size. */
.rept 32
- ANNOTATE_INTRA_FUNCTION_CALL
bl .+4
.endr
/* And on Power9 it's up to 64. */
BEGIN_FTR_SECTION
.rept 32
- ANNOTATE_INTRA_FUNCTION_CALL
bl .+4
.endr
END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
--
2.47.0
