x86/fpu: Cleanup the on_boot_cpu clutter

Defensive programming is useful, but this on_boot_cpu debug is really
silly.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211015011538.665080855@linutronix.de
This commit is contained in:
Thomas Gleixner 2021-10-15 03:16:01 +02:00 committed by Borislav Petkov
parent f5daf836f2
commit dc2f39fd1b
2 changed files with 0 additions and 25 deletions

View File

@ -192,11 +192,6 @@ static void __init fpu__init_task_struct_size(void)
*/
static void __init fpu__init_system_xstate_size_legacy(void)
{
static int on_boot_cpu __initdata = 1;
WARN_ON_FPU(!on_boot_cpu);
on_boot_cpu = 0;
/*
* Note that xstate sizes might be overwritten later during
* fpu__init_system_xstate().
@ -216,15 +211,6 @@ static void __init fpu__init_system_xstate_size_legacy(void)
fpu_user_xstate_size = fpu_kernel_xstate_size;
}
/* Legacy code to initialize eager fpu mode. */
static void __init fpu__init_system_ctx_switch(void)
{
static bool on_boot_cpu __initdata = 1;
WARN_ON_FPU(!on_boot_cpu);
on_boot_cpu = 0;
}
/*
* Called on the boot CPU once per system bootup, to set up the initial
* FPU state that is later cloned into all processes:
@ -243,6 +229,4 @@ void __init fpu__init_system(struct cpuinfo_x86 *c)
fpu__init_system_xstate_size_legacy();
fpu__init_system_xstate();
fpu__init_task_struct_size();
fpu__init_system_ctx_switch();
}

View File

@ -379,15 +379,10 @@ static void __init print_xstate_offset_size(void)
*/
static void __init setup_init_fpu_buf(void)
{
static int on_boot_cpu __initdata = 1;
BUILD_BUG_ON((XFEATURE_MASK_USER_SUPPORTED |
XFEATURE_MASK_SUPERVISOR_SUPPORTED) !=
XFEATURES_INIT_FPSTATE_HANDLED);
WARN_ON_FPU(!on_boot_cpu);
on_boot_cpu = 0;
if (!boot_cpu_has(X86_FEATURE_XSAVE))
return;
@ -721,14 +716,10 @@ static void fpu__init_disable_system_xstate(void)
void __init fpu__init_system_xstate(void)
{
unsigned int eax, ebx, ecx, edx;
static int on_boot_cpu __initdata = 1;
u64 xfeatures;
int err;
int i;
WARN_ON_FPU(!on_boot_cpu);
on_boot_cpu = 0;
if (!boot_cpu_has(X86_FEATURE_FPU)) {
pr_info("x86/fpu: No FPU detected\n");
return;