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csky: Fixup init_fpu compile warning with __init

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WARNING: vmlinux.o(.text+0x2366): Section mismatch in reference from the
function csky_start_secondary() to the function .init.text:init_fpu()

The function csky_start_secondary() references
the function __init init_fpu().
This is often because csky_start_secondary lacks a __init
annotation or the annotation of init_fpu is wrong.

Reported-by: Lu Chongzhi <chongzhi.lcz@alibaba-inc.com>
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
This commit is contained in:
Guo Ren 2020-02-26 10:23:26 +08:00
parent 98d54f81e3
commit 12879bda3c
3 changed files with 5 additions and 6 deletions
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5
arch/csky/abiv2/fpu.c
View File

@ -10,11 +10,6 @@
#define MTCR_DIST 0xC0006420
#define MFCR_DIST 0xC0006020
void __init init_fpu(void)
{
mtcr("cr<1, 2>", 0);
}
/*
* fpu_libc_helper() is to help libc to excute:
* - mfcr %a, cr<1, 2>

3
arch/csky/abiv2/inc/abi/fpu.h
View File

@ -9,7 +9,8 @@
int fpu_libc_helper(struct pt_regs *regs);
void fpu_fpe(struct pt_regs *regs);
void __init init_fpu(void);
static inline void init_fpu(void) { mtcr("cr<1, 2>", 0); }
void save_to_user_fp(struct user_fp *user_fp);
void restore_from_user_fp(struct user_fp *user_fp);

3
arch/csky/kernel/smp.c
View File

@ -22,6 +22,9 @@
#include <asm/sections.h>
#include <asm/mmu_context.h>
#include <asm/pgalloc.h>
#ifdef CONFIG_CPU_HAS_FPU
#include <abi/fpu.h>
#endif
struct ipi_data_struct {
unsigned long bits ____cacheline_aligned;