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mips/kprobes: Export kprobe_fault_handler() 

Generic kprobe_page_fault() calls into kprobe_fault_handler() which must be
available with and without CONFIG_KPROBES. There is one stub implementation
for !CONFIG_KPROBES. For CONFIG_KPROBES all subscribing archs must provide
a kprobe_fault_handler() definition. Currently mips has an implementation
which is defined as 'static inline'. Make it available for generic kprobes
to comply with the above new requirement.

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: James Hogan <jhogan@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-mm@kvack.org

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Fixes: 773734b44557 ("mm, kprobes: generalize and rename notify_page_fault() as kprobe_page_fault()")
Cc: linux-kernel@vger.kernel.org
alistair/sunxi64-5.4-dsi
Anshuman Khandual 2019-06-21 21:39:18 +05:30 committed by Paul Burton
parent a4e5914a7b
commit c9093486f2
No known key found for this signature in database
GPG Key ID: 3EA79FACB57500DD
2 changed files with 2 additions and 1 deletions
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1
arch/mips/include/asm/kprobes.h
View File

@ -53,6 +53,7 @@ do { \
#define kretprobe_blacklist_size 0
void arch_remove_kprobe(struct kprobe *p);
int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
/* Architecture specific copy of original instruction*/
struct arch_specific_insn {

2
arch/mips/kernel/kprobes.c
View File

@ -410,7 +410,7 @@ out:
return 1;
}
static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
{
struct kprobe *cur = kprobe_running();
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();