Commit df648c9f authored by Johannes Berg's avatar Johannes Berg Committed by Rusty Russell
Browse files

rework try_then_request_module to do less in non-modular kernels 



This reworks try_then_request_module to only invoke the "lookup"
function "x" once when the kernel is not modular.

Signed-off-by: default avatarJohannes Berg <johannes@sipsolutions.net>
Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent a81792f6

include/linux/kmod.h

+2 −1
Original line number Diff line number Diff line
@@ -29,11 +29,12 @@ 
/* modprobe exit status on success, -ve on error.  Return value

 * usually useless though. */

extern int request_module(const char * name, ...) __attribute__ ((format (printf, 1, 2)));

#define try_then_request_module(x, mod...) ((x) ?: (request_module(mod), (x)))

#else

static inline int request_module(const char * name, ...) { return -ENOSYS; }

#define try_then_request_module(x, mod...) (x)

#endif



#define try_then_request_module(x, mod...) ((x) ?: (request_module(mod), (x)))



struct key;

struct file;