Patch "parisc: support R_PARISC_SECREL32 relocation in modules" has been added to the 4.10-stable tree

Patch "parisc: support R_PARISC_SECREL32 relocation in modules" has been added to the 4.10-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    parisc: support R_PARISC_SECREL32 relocation in modules

to the 4.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     parisc-support-r_parisc_secrel32-relocation-in-modules.patch
and it can be found in the queue-4.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 5f655322b1ba4bd46e26e307d04098f9c84df764 Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Tue, 14 Mar 2017 11:47:29 -0400
Subject: parisc: support R_PARISC_SECREL32 relocation in modules

From: Mikulas Patocka <mpatocka@redhat.com>

commit 5f655322b1ba4bd46e26e307d04098f9c84df764 upstream.

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>
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/parisc/kernel/module.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- 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))) {


Patches currently in stable-queue which might be from mpatocka@redhat.com are

queue-4.10/parisc-support-r_parisc_secrel32-relocation-in-modules.patch