diff options
Diffstat (limited to 'arch/powerpc/lib/code-patching.c')
| -rw-r--r-- | arch/powerpc/lib/code-patching.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index 6ae2777c220d..5ffee298745f 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c | |||
| @@ -28,12 +28,6 @@ static int __patch_instruction(unsigned int *exec_addr, unsigned int instr, | |||
| 28 | { | 28 | { |
| 29 | int err; | 29 | int err; |
| 30 | 30 | ||
| 31 | /* Make sure we aren't patching a freed init section */ | ||
| 32 | if (init_mem_is_free && init_section_contains(exec_addr, 4)) { | ||
| 33 | pr_debug("Skipping init section patching addr: 0x%px\n", exec_addr); | ||
| 34 | return 0; | ||
| 35 | } | ||
| 36 | |||
| 37 | __put_user_size(instr, patch_addr, 4, err); | 31 | __put_user_size(instr, patch_addr, 4, err); |
| 38 | if (err) | 32 | if (err) |
| 39 | return err; | 33 | return err; |
| @@ -148,7 +142,7 @@ static inline int unmap_patch_area(unsigned long addr) | |||
| 148 | return 0; | 142 | return 0; |
| 149 | } | 143 | } |
| 150 | 144 | ||
| 151 | int patch_instruction(unsigned int *addr, unsigned int instr) | 145 | static int do_patch_instruction(unsigned int *addr, unsigned int instr) |
| 152 | { | 146 | { |
| 153 | int err; | 147 | int err; |
| 154 | unsigned int *patch_addr = NULL; | 148 | unsigned int *patch_addr = NULL; |
| @@ -188,12 +182,22 @@ out: | |||
| 188 | } | 182 | } |
| 189 | #else /* !CONFIG_STRICT_KERNEL_RWX */ | 183 | #else /* !CONFIG_STRICT_KERNEL_RWX */ |
| 190 | 184 | ||
| 191 | int patch_instruction(unsigned int *addr, unsigned int instr) | 185 | static int do_patch_instruction(unsigned int *addr, unsigned int instr) |
| 192 | { | 186 | { |
| 193 | return raw_patch_instruction(addr, instr); | 187 | return raw_patch_instruction(addr, instr); |
| 194 | } | 188 | } |
| 195 | 189 | ||
| 196 | #endif /* CONFIG_STRICT_KERNEL_RWX */ | 190 | #endif /* CONFIG_STRICT_KERNEL_RWX */ |
| 191 | |||
| 192 | int patch_instruction(unsigned int *addr, unsigned int instr) | ||
| 193 | { | ||
| 194 | /* Make sure we aren't patching a freed init section */ | ||
| 195 | if (init_mem_is_free && init_section_contains(addr, 4)) { | ||
| 196 | pr_debug("Skipping init section patching addr: 0x%px\n", addr); | ||
| 197 | return 0; | ||
| 198 | } | ||
| 199 | return do_patch_instruction(addr, instr); | ||
| 200 | } | ||
| 197 | NOKPROBE_SYMBOL(patch_instruction); | 201 | NOKPROBE_SYMBOL(patch_instruction); |
| 198 | 202 | ||
| 199 | int patch_branch(unsigned int *addr, unsigned long target, int flags) | 203 | int patch_branch(unsigned int *addr, unsigned long target, int flags) |
