parisc: support R_PARISC_SECREL32 relocation in modules

The parisc kernel doesn't work with CONFIG_MODVERSIONS since the commit
71810db27c1c853b335675bee335d893bc3d324b. It can't load modules with the
error: "module unix: Unknown relocation: 41".

The commit changes __kcrctab from 64-bit valus to 32-bit values. The
assembler generates R_PARISC_SECREL32 secrel relocation for them and the
module loader doesn't support this relocation.

This patch adds the R_PARISC_SECREL32 relocation to the module loader.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org	# v4.10+
Signed-off-by: Helge Deller <deller@gmx.de>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index a0ecdb4abcc8..c66c943d9322 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -620,6 +620,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
                          */
                         *loc = fsel(val, addend); 
                         break;
+                case R_PARISC_SECREL32:
+                        /* 32-bit section relative address. */
+                        *loc = fsel(val, addend);
+                        break;
                 case R_PARISC_DPREL21L:
                         /* left 21 bit of relative address */
                         val = lrsel(val - dp, addend);
@@ -807,6 +811,10 @@ int apply_relocate_add(Elf_Shdr *sechdrs,
                          */
                         *loc = fsel(val, addend); 
                         break;
+                case R_PARISC_SECREL32:
+                        /* 32-bit section relative address. */
+                        *loc = fsel(val, addend);
+                        break;
                 case R_PARISC_FPTR64:
                         /* 64-bit function address */
                         if(in_local(me, (void *)(val + addend))) {