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| author | Peter Zijlstra <peterz@infradead.org> | 2021-03-26 16:12:00 +0100 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2021-03-31 16:20:22 +0200 |
| commit | 52fa82c21f64e900a72437269a5cc9e0034b424e (patch) | |
| tree | b2a122854db8fa1ed6adc80be5e5dee1dc3ab22f /arch/x86/kernel | |
| parent | 2304d14db6595bea5292bece06c4c625b12d8f89 (diff) | |
| download | linux-52fa82c21f64e900a72437269a5cc9e0034b424e.tar.gz | |
x86: Add insn_decode_kernel()
Add a helper to decode kernel instructions; there's no point in endlessly repeating those last two arguments. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210326151259.379242587@infradead.org
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/alternative.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/cpu/mce/severity.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/kprobes/core.c | 4 | ||||
| -rw-r--r-- | arch/x86/kernel/kprobes/opt.c | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/traps.c | 2 |
5 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index ce28c5c1deba..ff359b3a30e7 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -1280,7 +1280,7 @@ static void text_poke_loc_init(struct text_poke_loc *tp, void *addr, if (!emulate) emulate = opcode; - ret = insn_decode(&insn, emulate, MAX_INSN_SIZE, INSN_MODE_KERN); + ret = insn_decode_kernel(&insn, emulate); BUG_ON(ret < 0); BUG_ON(len != insn.length); diff --git a/arch/x86/kernel/cpu/mce/severity.c b/arch/x86/kernel/cpu/mce/severity.c index a2136ced9d73..abdd2e40d7c4 100644 --- a/arch/x86/kernel/cpu/mce/severity.c +++ b/arch/x86/kernel/cpu/mce/severity.c @@ -225,7 +225,7 @@ static bool is_copy_from_user(struct pt_regs *regs) if (copy_from_kernel_nofault(insn_buf, (void *)regs->ip, MAX_INSN_SIZE)) return false; - ret = insn_decode(&insn, insn_buf, MAX_INSN_SIZE, INSN_MODE_KERN); + ret = insn_decode_kernel(&insn, insn_buf); if (ret < 0) return false; diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c index dd0902184708..1319ff47c85c 100644 --- a/arch/x86/kernel/kprobes/core.c +++ b/arch/x86/kernel/kprobes/core.c @@ -285,7 +285,7 @@ static int can_probe(unsigned long paddr) if (!__addr) return 0; - ret = insn_decode(&insn, (void *)__addr, MAX_INSN_SIZE, INSN_MODE_KERN); + ret = insn_decode_kernel(&insn, (void *)__addr); if (ret < 0) return 0; @@ -322,7 +322,7 @@ int __copy_instruction(u8 *dest, u8 *src, u8 *real, struct insn *insn) MAX_INSN_SIZE)) return 0; - ret = insn_decode(insn, dest, MAX_INSN_SIZE, INSN_MODE_KERN); + ret = insn_decode_kernel(insn, dest); if (ret < 0) return 0; diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c index 4299fc865732..71425ebba98a 100644 --- a/arch/x86/kernel/kprobes/opt.c +++ b/arch/x86/kernel/kprobes/opt.c @@ -324,7 +324,7 @@ static int can_optimize(unsigned long paddr) if (!recovered_insn) return 0; - ret = insn_decode(&insn, (void *)recovered_insn, MAX_INSN_SIZE, INSN_MODE_KERN); + ret = insn_decode_kernel(&insn, (void *)recovered_insn); if (ret < 0) return 0; diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index a5d254057b88..034f27fc230a 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -504,7 +504,7 @@ static enum kernel_gp_hint get_kernel_gp_address(struct pt_regs *regs, MAX_INSN_SIZE)) return GP_NO_HINT; - ret = insn_decode(&insn, insn_buf, MAX_INSN_SIZE, INSN_MODE_KERN); + ret = insn_decode_kernel(&insn, insn_buf); if (ret < 0) return GP_NO_HINT; |