4.9-stable review patch. If anyone has any objections, please let me know.
------------------
From: Vineet Gupta <vgu...@synopsys.com>
commit eb1357d942e5d96de6b4c20a8ffa55acf96233a2 upstream.
commit d65283f7b695b5 added mod->arch.secstr under
CONFIG_ARC_DW2_UNWIND, but used it unconditionally which broke builds
when the option was disabled. Fix that by adjusting the #ifdef guard.
And while at it add a missing guard (for unwinder) in module.c as well
Reported-by: Waldemar Brodkorb <w...@openadk.org>
Fixes: d65283f7b695b5 ("ARC: module: elide loop to save reference to .eh_frame")
Tested-by: Anton Kolesov <akole...@synopsys.com>
Reviewed-by: Alexey Brodkin <abrod...@synopsys.com>
[abrodkin: provided fixlet to Kconfig per failure in allnoconfig build]
Signed-off-by: Vineet Gupta <vgu...@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
---
arch/arc/Kconfig | 2 +-
arch/arc/include/asm/module.h | 4 ++--
arch/arc/kernel/module.c | 4 +++-
3 files changed, 6 insertions(+), 4 deletions(-)
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -28,7 +28,7 @@ config ARC
select HAVE_KPROBES
select HAVE_KRETPROBES
select HAVE_MEMBLOCK
- select HAVE_MOD_ARCH_SPECIFIC if ARC_DW2_UNWIND
+ select HAVE_MOD_ARCH_SPECIFIC
select HAVE_OPROFILE
select HAVE_PERF_EVENTS
select HANDLE_DOMAIN_IRQ
--- a/arch/arc/include/asm/module.h
+++ b/arch/arc/include/asm/module.h
@@ -14,13 +14,13 @@
#include <asm-generic/module.h>
-#ifdef CONFIG_ARC_DW2_UNWIND
struct mod_arch_specific {
+#ifdef CONFIG_ARC_DW2_UNWIND
void *unw_info;
int unw_sec_idx;
+#endif
const char *secstr;
};
-#endif
#define MODULE_PROC_FAMILY "ARC700"
--- a/arch/arc/kernel/module.c
+++ b/arch/arc/kernel/module.c
@@ -32,8 +32,8 @@ int module_frob_arch_sections(Elf_Ehdr *
#ifdef CONFIG_ARC_DW2_UNWIND
mod->arch.unw_sec_idx = 0;
mod->arch.unw_info = NULL;
- mod->arch.secstr = secstr;
#endif
+ mod->arch.secstr = secstr;
return 0;
}
@@ -113,8 +113,10 @@ int apply_relocate_add(Elf32_Shdr *sechd
}
+#ifdef CONFIG_ARC_DW2_UNWIND
if (strcmp(module->arch.secstr+sechdrs[tgtsec].sh_name, ".eh_frame") ==
0)
module->arch.unw_sec_idx = tgtsec;
+#endif
return 0;
