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authorAnshuman Khandual <anshuman.khandual@arm.com>2019-06-21 19:09:18 +0300
committerPaul Burton <paul.burton@mips.com>2019-07-03 16:14:04 +0300
commitc9093486f283c3447439f234eb0124129e8e7834 (patch)
tree1372f24950409c08ed061b1e5ac07ab9ba19b4f6 /arch/mips
parenta4e5914a7b4f175b22904fc72155e7ea41246d2c (diff)
downloadlinux-c9093486f283c3447439f234eb0124129e8e7834.tar.xz
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
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/include/asm/kprobes.h1
-rw-r--r--arch/mips/kernel/kprobes.c2
2 files changed, 2 insertions, 1 deletions
diff --git a/arch/mips/include/asm/kprobes.h b/arch/mips/include/asm/kprobes.h
index a72dfbf1babb..fdb74f89c4f3 100644
--- a/arch/mips/include/asm/kprobes.h
+++ b/arch/mips/include/asm/kprobes.h
@@ -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 {
diff --git a/arch/mips/kernel/kprobes.c b/arch/mips/kernel/kprobes.c
index 54cd675c5d1d..aec29c86d980 100644
--- a/arch/mips/kernel/kprobes.c
+++ b/arch/mips/kernel/kprobes.c
@@ -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();