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authorVineet Gupta <vgupta@synopsys.com>2017-01-16 10:48:09 -0800
committerVineet Gupta <vgupta@synopsys.com>2017-01-18 11:17:44 -0800
commiteb1357d942e5d96de6b4c20a8ffa55acf96233a2 (patch)
tree623f34743d7fbfafb97dc8a6e7c9990f9a7f4ac3 /arch/arc
parentecd43afdbe72017aefe48080631eb625e177ef4d (diff)
downloadlinux-eb1357d942e5d96de6b4c20a8ffa55acf96233a2.tar.gz
ARC: module: Fix !CONFIG_ARC_DW2_UNWIND builds
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 <wbx@openadk.org>
Cc: stable@vger.kernel.org    #4.9
Fixes: d65283f7b695b5 ("ARC: module: elide loop to save reference to .eh_frame")
Tested-by: Anton Kolesov <akolesov@synopsys.com>
Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com>
[abrodkin: provided fixlet to Kconfig per failure in allnoconfig build]
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/Kconfig2
-rw-r--r--arch/arc/include/asm/module.h4
-rw-r--r--arch/arc/kernel/module.c4
3 files changed, 6 insertions, 4 deletions
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index c75d29077e4a..283099c9560a 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -29,7 +29,7 @@ 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
diff --git a/arch/arc/include/asm/module.h b/arch/arc/include/asm/module.h
index 6e91d8b339c3..567590ea8f6c 100644
--- 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"
 
diff --git a/arch/arc/kernel/module.c b/arch/arc/kernel/module.c
index 42e964db2967..3d99a6091332 100644
--- a/arch/arc/kernel/module.c
+++ b/arch/arc/kernel/module.c
@@ -32,8 +32,8 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
 #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 *sechdrs,
 
 	}
 
+#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;