e795000e75
The current implementation forces a compile-time 1/0 division, which generates an undefined instruction (ud2 on x86) rather than a proper runtime division-by-zero exception. Change to trigger an actual div-by-0 exception at runtime, consistent with other division operations. Use a non-1 dividend to prevent the compiler from optimizing the division into a comparison. Link: https://lkml.kernel.org/r/q246p466-1453-qon9-29so-37105116009q@onlyvoer.pbz Signed-off-by: Nicolas Pitre <npitre@baylibre.com> Cc: Biju Das <biju.das.jz@bp.renesas.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Weißschuh <linux@weissschuh.net> Cc: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Cc: David Laight <david.laight.linux@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
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| .. | ||
| tests | ||
| Kconfig | ||
| Makefile | ||
| cordic.c | ||
| div64.c | ||
| gcd.c | ||
| int_log.c | ||
| int_pow.c | ||
| int_sqrt.c | ||
| lcm.c | ||
| prime_numbers.c | ||
| prime_numbers_private.h | ||
| rational.c | ||
| reciprocal_div.c | ||
| test_div64.c | ||
| test_mul_u64_u64_div_u64.c | ||