diff options
Diffstat (limited to 'arch/s390/kernel/module.c')
| -rw-r--r-- | arch/s390/kernel/module.c | 29 |
1 files changed, 15 insertions, 14 deletions
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c index 1a27f307a920..b7abfad4fd7d 100644 --- a/arch/s390/kernel/module.c +++ b/arch/s390/kernel/module.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Kernel module help for s390. * @@ -8,20 +9,6 @@ * * based on i386 version * Copyright (C) 2001 Rusty Russell. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/module.h> #include <linux/elf.h> @@ -31,6 +18,7 @@ #include <linux/kernel.h> #include <linux/moduleloader.h> #include <linux/bug.h> +#include <asm/alternative.h> #if 0 #define DEBUGP printk @@ -429,6 +417,19 @@ int module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, struct module *me) { + const Elf_Shdr *s; + char *secstrings; + + secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) { + if (!strcmp(".altinstructions", secstrings + s->sh_name)) { + /* patch .altinstructions */ + void *aseg = (void *)s->sh_addr; + + apply_alternatives(aseg, aseg + s->sh_size); + } + } + jump_label_apply_nops(me); return 0; } |