ARM: 6191/1: Do not compile the Thumb-2 module relocations on an ARM kernel
authorCatalin Marinas <catalin.marinas@arm.com>
Mon, 21 Jun 2010 14:11:38 +0000 (15:11 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Thu, 5 Aug 2010 09:35:48 +0000 (10:35 +0100)
Kernels compiled to ARM do not need to handle Thumb-2 module relocations
as interworking is not allowed. This patch #ifdef's out the handling of
such relocations.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
arch/arm/kernel/module.c

index aab7fca..6b46058 100644 (file)
@@ -102,7 +102,9 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
                unsigned long loc;
                Elf32_Sym *sym;
                s32 offset;
+#ifdef CONFIG_THUMB2_KERNEL
                u32 upper, lower, sign, j1, j2;
+#endif
 
                offset = ELF32_R_SYM(rel->r_info);
                if (offset < 0 || offset > (symsec->sh_size / sizeof(Elf32_Sym))) {
@@ -185,6 +187,7 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
                                        (offset & 0x0fff);
                        break;
 
+#ifdef CONFIG_THUMB2_KERNEL
                case R_ARM_THM_CALL:
                case R_ARM_THM_JUMP24:
                        upper = *(u16 *)loc;
@@ -266,6 +269,7 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
                                                  ((offset & 0x0700) << 4) |
                                                  (offset & 0x00ff));
                        break;
+#endif
 
                default:
                        printk(KERN_ERR "%s: unknown relocation: %u\n",