Messages in this thread Patch in this message | | | Subject | [PATCH][v850] Make v850 __delay function handle a loop count of zero | Date | Fri, 10 Oct 2003 18:22:01 +0900 (JST) | From | (Miles Bader) |
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Linus, please apply.
[In practice, this only seems to occur in odd debugging situations, but it's quite annoying then.]
diff -ruN -X../cludes linux-2.6.0-test7-moo/include/asm-v850/delay.h linux-2.6.0-test7-moo-v850-20031010/include/asm-v850/delay.h --- linux-2.6.0-test7-moo/include/asm-v850/delay.h 2002-11-05 11:25:31.000000000 +0900 +++ linux-2.6.0-test7-moo-v850-20031010/include/asm-v850/delay.h 2003-10-10 16:48:23.000000000 +0900 @@ -2,8 +2,8 @@ * include/asm-v850/delay.h -- Delay routines, using a pre-computed * "loops_per_second" value * - * Copyright (C) 2001 NEC Corporation - * Copyright (C) 2001 Miles Bader <miles@gnu.org> + * Copyright (C) 2001,03 NEC Corporation + * Copyright (C) 2001,03 Miles Bader <miles@gnu.org> * Copyright (C) 1994 Hamish Macdonald * * This file is subject to the terms and conditions of the GNU General @@ -18,8 +18,9 @@ extern __inline__ void __delay(unsigned long loops) { - __asm__ __volatile__ ("1: add -1, %0; bnz 1b" - : "=r" (loops) : "0" (loops)); + if (loops) + __asm__ __volatile__ ("1: add -1, %0; bnz 1b" + : "=r" (loops) : "0" (loops)); } /* - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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