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[PATCH] isdn: work around excessive udelay()

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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>
This commit is contained in:
Andrew Morton 2006-10-02 02:17:38 -07:00 committed by Linus Torvalds
parent fd0fbcc27f
commit ca8af48676
1 changed files with 12 additions and 1 deletions
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13
drivers/isdn/hisax/hisax.h
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@ -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);