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authorLinus Torvalds <torvalds@linux-foundation.org>2020-08-09 13:33:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-08-09 13:33:54 -0700
commit8d3e09b43312991c503478bf0f5f99e92c23ccf1 (patch)
treed5565651cc4ceac306d3aa266cf51e6bf66d8a9a /arch/ia64
parent9420f1ce01869409d78901c3e036b2c437cbc6b8 (diff)
parentbb1a773d5b6bf018bf84fdb3fbba01d3ef54e2c9 (diff)
Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull regset conversion fix from Al Viro: "Fix a regression from an unnoticed bisect hazard in the regset series. A bunch of old (aout, originally) primitives used by coredumps became dead code after fdpic conversion to regsets. Removal of that dead code had been the first commit in the followups to regset series; unfortunately, it happened to hide the bisect hazard on sh (extern for fpregs_get() had not been updated in the main series when it should have been; followup simply made fpregs_get() static). And without that followup commit this bisect hazard became breakage in the mainline" Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: kill unused dump_fpu() instances
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/kernel/process.c34
1 files changed, 0 insertions, 34 deletions
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index ec0b40f6e9c6..36eba4ba6543 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -531,51 +531,17 @@ do_copy_task_regs (struct task_struct *task, struct unw_frame_info *info, void *
}
void
-do_dump_task_fpu (struct task_struct *task, struct unw_frame_info *info, void *arg)
-{
- elf_fpreg_t *dst = arg;
- int i;
-
- memset(dst, 0, sizeof(elf_fpregset_t)); /* don't leak any "random" bits */
-
- if (unw_unwind_to_user(info) < 0)
- return;
-
- /* f0 is 0.0, f1 is 1.0 */
-
- for (i = 2; i < 32; ++i)
- unw_get_fr(info, i, dst + i);
-
- ia64_flush_fph(task);
- if ((task->thread.flags & IA64_THREAD_FPH_VALID) != 0)
- memcpy(dst + 32, task->thread.fph, 96*16);
-}
-
-void
do_copy_regs (struct unw_frame_info *info, void *arg)
{
do_copy_task_regs(current, info, arg);
}
void
-do_dump_fpu (struct unw_frame_info *info, void *arg)
-{
- do_dump_task_fpu(current, info, arg);
-}
-
-void
ia64_elf_core_copy_regs (struct pt_regs *pt, elf_gregset_t dst)
{
unw_init_running(do_copy_regs, dst);
}
-int
-dump_fpu (struct pt_regs *pt, elf_fpregset_t dst)
-{
- unw_init_running(do_dump_fpu, dst);
- return 1; /* f0-f31 are always valid so we always return 1 */
-}
-
/*
* Flush thread state. This is called when a thread does an execve().
*/