crypto: skcipher - in_irq() cleanup

Replace the obsolete and ambiguos macro in_irq() with new
macro in_hardirq().

Signed-off-by: Changbin Du <[e-mail]>
Signed-off-by: Herbert Xu <[e-mail]>

crypto/skcipher.c

···
 
 static int skcipher_walk_first(struct skcipher_walk *walk)
 {
-	if (WARN_ON_ONCE(in_irq()))
+	if (WARN_ON_ONCE(in_hardirq()))
 		return -EDEADLK;
 
 	walk->buffer = NULL;