diff options
| author | Jani Nikula <jani.nikula@intel.com> | 2021-07-01 18:46:34 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2021-07-01 18:46:34 +0300 |
| commit | e42c6c1bc8d5e70d7b2c8af534b0d33a2be48f0c (patch) | |
| tree | 4b1109adc051c943ef3edd990f5a907a0836bdf8 /arch/powerpc/kernel/kprobes.c | |
| parent | a03e880a700d9e217f7660bfc3616d93783b6d8c (diff) | |
| parent | 8a02ea42bc1d4c448caf1bab0e05899dad503f74 (diff) | |
Merge drm/drm-next into drm-intel-next
Bring drm-intel-next closer to drm-next and drm-intel-gt-next for a more
feasible baseline for topic branches.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'arch/powerpc/kernel/kprobes.c')
| -rw-r--r-- | arch/powerpc/kernel/kprobes.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c index 01ab2163659e..e8c2a6373157 100644 --- a/arch/powerpc/kernel/kprobes.c +++ b/arch/powerpc/kernel/kprobes.c @@ -108,7 +108,6 @@ int arch_prepare_kprobe(struct kprobe *p) int ret = 0; struct kprobe *prev; struct ppc_inst insn = ppc_inst_read((struct ppc_inst *)p->addr); - struct ppc_inst prefix = ppc_inst_read((struct ppc_inst *)(p->addr - 1)); if ((unsigned long)p->addr & 0x03) { printk("Attempt to register kprobe at an unaligned address\n"); @@ -116,7 +115,8 @@ int arch_prepare_kprobe(struct kprobe *p) } else if (IS_MTMSRD(insn) || IS_RFID(insn) || IS_RFI(insn)) { printk("Cannot register a kprobe on rfi/rfid or mtmsr[d]\n"); ret = -EINVAL; - } else if (ppc_inst_prefixed(prefix)) { + } else if ((unsigned long)p->addr & ~PAGE_MASK && + ppc_inst_prefixed(ppc_inst_read((struct ppc_inst *)(p->addr - 1)))) { printk("Cannot register a kprobe on the second word of prefixed instruction\n"); ret = -EINVAL; } |