From: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Subject: kasan: add a prototype of task_struct to avoid warning
Add a prototype of task_struct to fix below warning on arm64.
In file included from arch/arm64/kernel/probes/kprobes.c:19:0:
include/linux/kasan.h:81:132: error: 'struct task_struct' declared inside parameter list will not be visible outside of this definition or declaration [-Werror]
static inline void kasan_unpoison_task_stack(struct task_struct *task) {}
As same as other types (kmem_cache, page, and vm_struct) this adds a
prototype of task_struct data structure on top of kasan.h.
[arnd] A related warning was fixed before, but now appears in a different
line in the same file in v4.11-rc2. The patch from Masami Hiramatsu
still seems appropriate, so let's take his version.
Fixes: 71af2ed5eeea ("kasan, sched/headers: Remove <linux/sched.h> from <linux/kasan.h>")
Link: https://patchwork.kernel.org/patch/9569839/
Link: http://lkml.kernel.org/r/20170313141517.3397802-1-arnd@xxxxxxxx
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
Acked-by: Alexander Potapenko <glider@xxxxxxxxxx>
Acked-by: Andrey Ryabinin <aryabinin@xxxxxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/kasan.h | 1 +
1 file changed, 1 insertion(+)
diff -puN include/linux/kasan.h~kasan-add-a-prototype-of-task_struct-to-avoid-warning include/linux/kasan.h
--- a/include/linux/kasan.h~kasan-add-a-prototype-of-task_struct-to-avoid-warning
+++ a/include/linux/kasan.h
@@ -6,6 +6,7 @@
struct kmem_cache;
struct page;
struct vm_struct;
+struct task_struct;
#ifdef CONFIG_KASAN
_
--
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