The declaration of `__warn()` has `struct pt_regs *regs` as one of its parameters. This can result in compiler warnings if `struct regs` is not already declared. Add an empty declaration of `struct pt_regs` to avoid the warnings. Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Acked-by: Arnd Bergmann <arnd@xxxxxxxx> Acked-by: Michal Nazarewicz <mina86@xxxxxxxxxx> --- v3: Actually, there was no v1 or v2. I called this v3 to match the series. v4: Corrected 'Acked-by:' line in patch description. v5: Added Acked-by for Michal Nazarewicz. --- include/asm-generic/bug.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index d6f4aed479a1..87191357d303 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -97,6 +97,7 @@ extern void warn_slowpath_null(const char *file, const int line); /* used internally by panic.c */ struct warn_args; +struct pt_regs; void __warn(const char *file, int line, void *caller, unsigned taint, struct pt_regs *regs, struct warn_args *args); -- 2.11.0