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x86/fpu: Remove pointless argument from switch_fpu_finish()

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Unused since the FPU switching rework.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011538.433135710@linutronix.de
This commit is contained in:
Thomas Gleixner
2021-10-15 03:15:54 +02:00
committed by Borislav Petkov
parent 082f20b21d
commit 9568bfb4f0
3 changed files with 3 additions and 5 deletions
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2
arch/x86/include/asm/fpu/internal.h
View File

@@ -521,7 +521,7 @@ static inline void switch_fpu_prepare(struct fpu *old_fpu, int cpu)
* Delay loading of the complete FPU state until the return to userland.
* PKRU is handled separately.
*/
static inline void switch_fpu_finish(struct fpu *new_fpu)
static inline void switch_fpu_finish(void)
{
if (cpu_feature_enabled(X86_FEATURE_FPU))
set_thread_flag(TIF_NEED_FPU_LOAD);

3
arch/x86/kernel/process_32.c
View File

@@ -160,7 +160,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
struct thread_struct *prev = &prev_p->thread,
*next = &next_p->thread;
struct fpu *prev_fpu = &prev->fpu;
struct fpu *next_fpu = &next->fpu;
int cpu = smp_processor_id();
/* never put a printk in __switch_to... printk() calls wake_up*() indirectly */
@@ -213,7 +212,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
this_cpu_write(current_task, next_p);
switch_fpu_finish(next_fpu);
switch_fpu_finish();
/* Load the Intel cache allocation PQR MSR. */
resctrl_sched_in();

3
arch/x86/kernel/process_64.c
View File

@@ -559,7 +559,6 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
struct thread_struct *prev = &prev_p->thread;
struct thread_struct *next = &next_p->thread;
struct fpu *prev_fpu = &prev->fpu;
struct fpu *next_fpu = &next->fpu;
int cpu = smp_processor_id();
WARN_ON_ONCE(IS_ENABLED(CONFIG_DEBUG_ENTRY) &&
@@ -620,7 +619,7 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
this_cpu_write(current_task, next_p);
this_cpu_write(cpu_current_top_of_stack, task_top_of_stack(next_p));
switch_fpu_finish(next_fpu);
switch_fpu_finish();
/* Reload sp0. */
update_task_stack(next_p);