qed: Fix blocking/unlimited SPQ entries leak

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[ Upstream commit 2632f22ebd ]

When there are no SPQ entries left in the free_pool, new entries are
allocated and are added to the unlimited list. When an entry in the pool
is available, the content is copied from the original entry, and the new
entry is sent to the device. qed_spq_post() is not aware of that, so the
additional entry is stored in the original entry as p_post_ent, which can
later be returned to the pool.

Signed-off-by: Denis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: Michal Kalderon <michal.kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Denis Bolotin 2018-11-08 16:46:09 +02:00 • committed by Greg Kroah-Hartman

parent 66473b0ac3

commit b2e5004e1e

2 changed files with 33 additions and 27 deletions

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3

drivers/net/ethernet/qlogic/qed/qed_sp.h

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57

drivers/net/ethernet/qlogic/qed/qed_spq.c

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