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author | 2015-11-23 22:46:28 +1100 | |
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committer | 2015-11-23 22:46:28 +1100 | |
commit | ebd68df3f24b318d391d15c458d6f43f340ba36a (patch) | |
tree | f0277bc4b853abe5db1d30fa4e10b05bba7f2ac5 /arch/s390/kernel/traps.c | |
parent | security/capability.h: cap_issubset/isclear can be boolean (diff) | |
parent | Linux 4.4-rc2 (diff) | |
download | linux-dev-ebd68df3f24b318d391d15c458d6f43f340ba36a.tar.xz linux-dev-ebd68df3f24b318d391d15c458d6f43f340ba36a.zip |
Sync to Linus v4.4-rc2 for LSM developers.
Diffstat (limited to 'arch/s390/kernel/traps.c')
-rw-r--r-- | arch/s390/kernel/traps.c | 41 |
1 files changed, 1 insertions, 40 deletions
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 9861613fb35a..1b18118bbc06 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -19,7 +19,7 @@ #include <linux/sched.h> #include <linux/mm.h> #include <linux/slab.h> -#include <asm/fpu-internal.h> +#include <asm/fpu/api.h> #include "entry.h" int show_unhandled_signals = 1; @@ -224,29 +224,6 @@ NOKPROBE_SYMBOL(illegal_op); DO_ERROR_INFO(specification_exception, SIGILL, ILL_ILLOPN, "specification exception"); -int alloc_vector_registers(struct task_struct *tsk) -{ - __vector128 *vxrs; - freg_t *fprs; - - /* Allocate vector register save area. */ - vxrs = kzalloc(sizeof(__vector128) * __NUM_VXRS, - GFP_KERNEL|__GFP_REPEAT); - if (!vxrs) - return -ENOMEM; - preempt_disable(); - if (tsk == current) - save_fpu_regs(); - /* Copy the 16 floating point registers */ - convert_fp_to_vx(vxrs, tsk->thread.fpu.fprs); - fprs = tsk->thread.fpu.fprs; - tsk->thread.fpu.vxrs = vxrs; - tsk->thread.fpu.flags |= FPU_USE_VX; - kfree(fprs); - preempt_enable(); - return 0; -} - void vector_exception(struct pt_regs *regs) { int si_code, vic; @@ -281,13 +258,6 @@ void vector_exception(struct pt_regs *regs) do_trap(regs, SIGFPE, si_code, "vector exception"); } -static int __init disable_vector_extension(char *str) -{ - S390_lowcore.machine_flags &= ~MACHINE_FLAG_VX; - return 1; -} -__setup("novx", disable_vector_extension); - void data_exception(struct pt_regs *regs) { __u16 __user *location; @@ -296,15 +266,6 @@ void data_exception(struct pt_regs *regs) location = get_trap_ip(regs); save_fpu_regs(); - /* Check for vector register enablement */ - if (MACHINE_HAS_VX && !is_vx_task(current) && - (current->thread.fpu.fpc & FPC_DXC_MASK) == 0xfe00) { - alloc_vector_registers(current); - /* Vector data exception is suppressing, rewind psw. */ - regs->psw.addr = __rewind_psw(regs->psw, regs->int_code >> 16); - clear_pt_regs_flag(regs, PIF_PER_TRAP); - return; - } if (current->thread.fpu.fpc & FPC_DXC_MASK) signal = SIGFPE; else |