Starting from gcc-5.4+ gcc geperates MLX instructions in more cases to refer local symbols: https://gcc.gnu.org/bugzilla/60465
That caused ia64 module loader to choke on such instructions: fuse: invalid slot number 1 for IMM64 Linux kernel used to handle only case where relocation pointed to slot=2 instruction in the bundle. That limitation was fixed in linux by 9c184a073bfd650cc791956d6ca79725bb682716 commit. See http://sources.redhat.com/bugzilla/show_bug.cgi?id=1433 This change lifts the slot=2 restriction from linux kernel module loader. Tested on 'fuse' and 'btrfs' kernel modules. Cc: H. J. Lu <hjl.to...@gmail.com> Cc: Tony Luck <tony.l...@intel.com> Cc: Fenghua Yu <fenghua...@intel.com> Cc: linux-i...@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Andrew Morton <a...@linux-foundation.org> Bug: https://bugs.gentoo.org/601014 Tested-by: Émeric MASCHINO <emeric.masch...@gmail.com> Signed-off-by: Sergei Trofimovich <sly...@gentoo.org> --- Change since v1: added 'Tested-by' arch/ia64/kernel/module.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c index 6ab0ae7d6535..d1d945c6bd05 100644 --- a/arch/ia64/kernel/module.c +++ b/arch/ia64/kernel/module.c @@ -153,7 +153,7 @@ slot (const struct insn *insn) static int apply_imm64 (struct module *mod, struct insn *insn, uint64_t val) { - if (slot(insn) != 2) { + if (slot(insn) != 1 && slot(insn) != 2) { printk(KERN_ERR "%s: invalid slot number %d for IMM64\n", mod->name, slot(insn)); return 0; @@ -165,7 +165,7 @@ apply_imm64 (struct module *mod, struct insn *insn, uint64_t val) static int apply_imm60 (struct module *mod, struct insn *insn, uint64_t val) { - if (slot(insn) != 2) { + if (slot(insn) != 1 && slot(insn) != 2) { printk(KERN_ERR "%s: invalid slot number %d for IMM60\n", mod->name, slot(insn)); return 0; -- 2.12.0