Messages in this thread | | | Subject | Re: [PATCH] net: optimize cmpxchg in ip_idents_reserve | From | Eric Dumazet <> | Date | Fri, 17 Jan 2020 10:48:19 -0800 |
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On 1/17/20 10:38 AM, Arvind Sankar wrote: > On Fri, Jan 17, 2020 at 10:16:45AM -0800, Eric Dumazet wrote: >> Wasńt it the case back in 2016 already for linux-4.8 ? >> >> What will prevent someone to send another report to netdev/lkml ? >> >> -fno-strict-overflow support is not a prereq for CONFIG_UBSAN. >> >> Fact that we kept in lib/ubsan.c and lib/test_ubsan.c code for >> test_ubsan_add_overflow() and test_ubsan_sub_overflow() is disturbing. >> > > No, it was bumped in 2018 in commit cafa0010cd51 ("Raise the minimum > required gcc version to 4.6"). That raised it from 3.2 -> 4.6. >
This seems good to me, for gcc at least.
Maybe it is time to enfore -fno-strict-overflow in KBUILD_CFLAGS instead of making it conditional.
Thanks.
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