Commit ca8af486 authored Oct 02, 2006 by Andrew Morton Committed by Linus Torvalds Oct 02, 2006

[PATCH] isdn: work around excessive udelay()

As reported in http://bugzilla.kernel.org/show_bug.cgi?id=6970

, ISDN can issue
excessively-long udelays, which triggers a build-time error on ARM.

This is very sucky of ISDN, but I doubt if anyone is going to suddenly fix it.
So change the macro to do the microsecond counting itself.

Cc: <tch@wpkg.org>
Cc: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent fd0fbcc2

drivers/isdn/hisax/hisax.h

+12 −1

Original line number	Diff line number	Diff line
		@@ -1316,7 +1316,18 @@ void dlogframe(struct IsdnCardState cs, struct sk_buff skb, int dir);
		void iecpy(u_char * dest, u_char * iestart, int ieoffset);
		#endif /* __KERNEL__ */

		#define HZDELAY(jiffs) {int tout = jiffs; while (tout--) udelay(1000000/HZ);}
		/*
		* Busywait delay for `jiffs' jiffies
		*/
		#define HZDELAY(jiffs) do { \
		int tout = jiffs; \
		\
		while (tout--) { \
		int loops = USEC_PER_SEC / HZ; \
		while (loops--) \
		udelay(1); \
		} \
		} while (0)

		int ll_run(struct IsdnCardState *cs, int addfeatures);
		int CallcNew(void);