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| author |   Thomas Gleixner <tglx@linutronix.de> | 2022-05-12 14:04:08 +0200 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2022-05-13 12:56:28 +0200 |
| commit | f5c0b4f30416c670408a77be94703d04d22b57df (patch) | |
| tree | 9a6a24170f4fecb7180eae228d55ddd6f619bf3e /arch/x86/kernel/fpu/xstate.c | |
| parent | x86/aperfperf: Make it correct on 32bit and UP kernels (diff) | |
| download | wireguard-linux-f5c0b4f30416c670408a77be94703d04d22b57df.tar.xz wireguard-linux-f5c0b4f30416c670408a77be94703d04d22b57df.zip | |
x86/prctl: Remove pointless task argument
The functions invoked via do_arch_prctl_common() can only operate on
the current task and none of these function uses the task argument.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/87lev7vtxj.ffs@tglx
Diffstat (limited to 'arch/x86/kernel/fpu/xstate.c')
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index 39e1c8626ab9..1b016a186c11 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -1687,16 +1687,13 @@ EXPORT_SYMBOL_GPL(xstate_get_guest_group_perm); * e.g. for AMX which requires XFEATURE_XTILE_CFG(17) and * XFEATURE_XTILE_DATA(18) this would be XFEATURE_XTILE_DATA(18). */ -long fpu_xstate_prctl(struct task_struct *tsk, int option, unsigned long arg2) +long fpu_xstate_prctl(int option, unsigned long arg2) { u64 __user *uptr = (u64 __user *)arg2; u64 permitted, supported; unsigned long idx = arg2; bool guest = false; - if (tsk != current) - return -EPERM; - switch (option) { case ARCH_GET_XCOMP_SUPP: supported = fpu_user_cfg.max_features | fpu_user_cfg.legacy_features; |