MIPS: Fix module.c build for 32 bit

Fixes build failure introduced by "Make most arch asm/module.h files use
asm-generic/module.h" by moving all the RELA processing code to a
separate file to be used only for RELA processing on 64-bit kernels.

  CC      arch/mips/kernel/module.o
arch/mips/kernel/module.c:250:14: error: 'reloc_handlers_rela' defined but not
used [-Werror=unused-variable]
cc1: all warnings being treated as errors

make[6]: *** [arch/mips/kernel/module.o] Error 1

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 1 insertions, 120 deletions

diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index 4f8c3cba8c0c..07ff5812ffaf 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -51,7 +51,7 @@ void *module_alloc(unsigned long size)
 }
 #endif
 
-static int apply_r_mips_none(struct module *me, u32 *location, Elf_Addr v)
+int apply_r_mips_none(struct module *me, u32 *location, Elf_Addr v)
 {
         return 0;
 }
@@ -63,13 +63,6 @@ static int apply_r_mips_32_rel(struct module *me, u32 *location, Elf_Addr v)
         return 0;
 }
 
-static int apply_r_mips_32_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-        *location = v;
-
-        return 0;
-}
-
 static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
 {
         if (v % 4) {
@@ -91,26 +84,6 @@ static int apply_r_mips_26_rel(struct module *me, u32 *location, Elf_Addr v)
         return 0;
 }
 
-static int apply_r_mips_26_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-        if (v % 4) {
-                pr_err("module %s: dangerous R_MIPS_26 RELArelocation\n",
-                       me->name);
-                return -ENOEXEC;
-        }
-
-        if ((v & 0xf0000000) != (((unsigned long)location + 4) & 0xf0000000)) {
-                printk(KERN_ERR
-                       "module %s: relocation overflow\n",
-                       me->name);
-                return -ENOEXEC;
-        }
-
-        *location = (*location & ~0x03ffffff) | ((v >> 2) & 0x03ffffff);
-
-        return 0;
-}
-
 static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
 {
         struct mips_hi16 *n;
@@ -132,14 +105,6 @@ static int apply_r_mips_hi16_rel(struct module *me, u32 *location, Elf_Addr v)
         return 0;
 }
 
-static int apply_r_mips_hi16_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-        *location = (*location & 0xffff0000) |
-                    ((((long long) v + 0x8000LL) >> 16) & 0xffff);
-
-        return 0;
-}
-
 static void free_relocation_chain(struct mips_hi16 *l)
 {
         struct mips_hi16 *next;
@@ -217,38 +182,6 @@ out_danger:
         return -ENOEXEC;
 }
 
-static int apply_r_mips_lo16_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-        *location = (*location & 0xffff0000) | (v & 0xffff);
-
-        return 0;
-}
-
-static int apply_r_mips_64_rela(struct module *me, u32 *location, Elf_Addr v)
-{
-        *(Elf_Addr *)location = v;
-
-        return 0;
-}
-
-static int apply_r_mips_higher_rela(struct module *me, u32 *location,
-                                    Elf_Addr v)
-{
-        *location = (*location & 0xffff0000) |
-                    ((((long long) v + 0x80008000LL) >> 32) & 0xffff);
-
-        return 0;
-}
-
-static int apply_r_mips_highest_rela(struct module *me, u32 *location,
-                                     Elf_Addr v)
-{
-        *location = (*location & 0xffff0000) |
-                    ((((long long) v + 0x800080008000LL) >> 48) & 0xffff);
-
-        return 0;
-}
-
 static int (*reloc_handlers_rel[]) (struct module *me, u32 *location,
                                 Elf_Addr v) = {
         [R_MIPS_NONE]           = apply_r_mips_none,
@@ -258,18 +191,6 @@ static int (*reloc_handlers_rel[]) (struct module *me, u32 *location,
         [R_MIPS_LO16]           = apply_r_mips_lo16_rel
 };
 
-static int (*reloc_handlers_rela[]) (struct module *me, u32 *location,
-                                Elf_Addr v) = {
-        [R_MIPS_NONE]           = apply_r_mips_none,
-        [R_MIPS_32]             = apply_r_mips_32_rela,
-        [R_MIPS_26]             = apply_r_mips_26_rela,
-        [R_MIPS_HI16]           = apply_r_mips_hi16_rela,
-        [R_MIPS_LO16]           = apply_r_mips_lo16_rela,
-        [R_MIPS_64]             = apply_r_mips_64_rela,
-        [R_MIPS_HIGHER]         = apply_r_mips_higher_rela,
-        [R_MIPS_HIGHEST]        = apply_r_mips_highest_rela
-};
-
 int apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
                    unsigned int symindex, unsigned int relsec,
                    struct module *me)
@@ -324,46 +245,6 @@ int apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
         return 0;
 }
 
-int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
-                       unsigned int symindex, unsigned int relsec,
-                       struct module *me)
-{
-        Elf_Mips_Rela *rel = (void *) sechdrs[relsec].sh_addr;
-        Elf_Sym *sym;
-        u32 *location;
-        unsigned int i;
-        Elf_Addr v;
-        int res;
-
-        pr_debug("Applying relocate section %u to %u\n", relsec,
-               sechdrs[relsec].sh_info);
-
-        for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
-                /* This is where to make the change */
-                location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
-                        + rel[i].r_offset;
-                /* This is the symbol it is referring to */
-                sym = (Elf_Sym *)sechdrs[symindex].sh_addr
-                        + ELF_MIPS_R_SYM(rel[i]);
-                if (IS_ERR_VALUE(sym->st_value)) {
-                        /* Ignore unresolved weak symbol */
-                        if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
-                                continue;
-                        printk(KERN_WARNING "%s: Unknown symbol %s\n",
-                               me->name, strtab + sym->st_name);
-                        return -ENOENT;
-                }
-
-                v = sym->st_value + rel[i].r_addend;
-
-                res = reloc_handlers_rela[ELF_MIPS_R_TYPE(rel[i])](me, location, v);
-                if (res)
-                        return res;
-        }
-
-        return 0;
-}
-
 /* Given an address, look for it in the module exception tables. */
 const struct exception_table_entry *search_module_dbetables(unsigned long addr)
 {