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macsec: fix detection of RXSCs when toggling offloading

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[ Upstream commit 80df4706357a5a06bbbc70273bf2611df1ceee04 ]

macsec_is_configured incorrectly uses secy->n_rx_sc to check if some
RXSCs exist. secy->n_rx_sc only counts the number of active RXSCs, but
there can also be inactive SCs as well, which may be stored in the
driver (in case we're disabling offloading), or would have to be
pushed to the device (in case we're trying to enable offloading).

As long as RXSCs active on creation and never turned off, the issue is
not visible.

Fixes: dcb780fb2795 ("net: macsec: add nla support for changing the offloading selection")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Antoine Tenart <atenart@kernel.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sabrina Dubroca 2022-11-02 22:33:15 +01:00 committed by Greg Kroah-Hartman
parent 3070a880eb
commit eeba7f07a0
1 changed files with 1 additions and 1 deletions
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2
drivers/net/macsec.c
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@ -2558,7 +2558,7 @@ static bool macsec_is_configured(struct macsec_dev *macsec)
struct macsec_tx_sc *tx_sc = &secy->tx_sc;
int i;
if (secy->n_rx_sc > 0)
if (secy->rx_sc)
return true;
for (i = 0; i < MACSEC_NUM_AN; i++)