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qed: Fix setting/clearing bit in completion bitmap

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[ Upstream commit 59d3f1ceb6 ]

Slowpath completion handling is incorrectly changing
SPQ_RING_SIZE bits instead of a single one.

Fixes: 76a9a3642a ("qed: fix handling of concurrent ramrods")
Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Manish Chopra 2016-07-25 19:07:46 +03:00 committed by Greg Kroah-Hartman
parent fc9b7c086b
commit e23696bc44
1 changed files with 3 additions and 4 deletions
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7
drivers/net/ethernet/qlogic/qed/qed_spq.c
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@ -794,13 +794,12 @@ int qed_spq_completion(struct qed_hwfn *p_hwfn,
* in a bitmap and increasing the chain consumer only
* for the first successive completed entries.
*/
bitmap_set(p_spq->p_comp_bitmap, pos, SPQ_RING_SIZE);
__set_bit(pos, p_spq->p_comp_bitmap);
while (test_bit(p_spq->comp_bitmap_idx,
p_spq->p_comp_bitmap)) {
bitmap_clear(p_spq->p_comp_bitmap,
p_spq->comp_bitmap_idx,
SPQ_RING_SIZE);
__clear_bit(p_spq->comp_bitmap_idx,
p_spq->p_comp_bitmap);
p_spq->comp_bitmap_idx++;
qed_chain_return_produced(&p_spq->chain);
}