linux-kernel - [tip: x86/fpu] x86/fpu: Remove pointless argument from switch_fpu

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Message-ID: <163473748635.25758.9303480087639922504.tip-bot2@tip-bot2>
Date:   Wed, 20 Oct 2021 13:44:46 -0000
From:   "tip-bot2 for Thomas Gleixner" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Thomas Gleixner <tglx@...utronix.de>, Borislav Petkov <bp@...e.de>,
        x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: x86/fpu] x86/fpu: Remove pointless argument from switch_fpu_finish()

The following commit has been merged into the x86/fpu branch of tip:

Commit-ID:     9568bfb4f04bd9a280c592879ccd7a26a77c1390
Gitweb:        https://git.kernel.org/tip/9568bfb4f04bd9a280c592879ccd7a26a77c1390
Author:        Thomas Gleixner <tglx@...utronix.de>
AuthorDate:    Fri, 15 Oct 2021 03:15:54 +02:00
Committer:     Borislav Petkov <bp@...e.de>
CommitterDate: Wed, 20 Oct 2021 15:27:25 +02:00

x86/fpu: Remove pointless argument from switch_fpu_finish()

Unused since the FPU switching rework.

Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Signed-off-by: Borislav Petkov <bp@...e.de>
Link: https://lkml.kernel.org/r/20211015011538.433135710@linutronix.de
---
 arch/x86/include/asm/fpu/internal.h | 2 +-
 arch/x86/kernel/process_32.c        | 3 +--
 arch/x86/kernel/process_64.c        | 3 +--
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h
index 89960e4..1503750 100644
--- a/arch/x86/include/asm/fpu/internal.h
+++ b/arch/x86/include/asm/fpu/internal.h
@@ -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);
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 4f2f54e..d008e22 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -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();
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index ec0d836..39f12ef 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -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);