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Merge pull request #6575 from mjstapp/fix_avoid_clang_add_fetch

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zebra: avoid an atomic builtin that clang doesn't like
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Russ White 2020-06-16 07:53:06 -04:00 committed by GitHub
commit 26a7e0ceda
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1 changed files with 3 additions and 8 deletions
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zebra/zebra_dplane.c
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@ -2158,17 +2158,12 @@ static int dplane_update_enqueue(struct zebra_dplane_ctx *ctx)
}
DPLANE_UNLOCK();
curr = atomic_add_fetch_explicit(
#ifdef __clang__
/* TODO -- issue with the clang atomic/intrinsics currently;
* casting away the 'Atomic'-ness of the variable works.
*/
(uint32_t *)&(zdplane_info.dg_routes_queued),
#else
curr = atomic_fetch_add_explicit(
&(zdplane_info.dg_routes_queued),
#endif
1, memory_order_seq_cst);
curr++; /* We got the pre-incremented value */
/* Maybe update high-water counter also */
high = atomic_load_explicit(&zdplane_info.dg_routes_queued_max,
memory_order_seq_cst);