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| author | Ben Hutchings <bhutchings@solarflare.com> | 2011-09-05 07:43:04 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-09-16 16:50:36 -0400 |
| commit | 9e393b3060ec4ed7e7c7c5de154e08e48c98f623 (patch) | |
| tree | 94951da6c8fadeab0265aa825f6b95266a6ded60 /drivers/net/ethernet/sfc/siena.c | |
| parent | a0c4faf5484b1fe38952d5b975f19e9f4b8f0f2b (diff) | |
| download | blackbird-op-linux-9e393b3060ec4ed7e7c7c5de154e08e48c98f623.tar.gz blackbird-op-linux-9e393b3060ec4ed7e7c7c5de154e08e48c98f623.zip | |
sfc: Validate IRQ moderation parameters in efx_init_irq_moderation()
Add a range check, and move the check that RX and TX are consistent
from efx_ethtool_set_coalesce().
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc/siena.c')
| -rw-r--r-- | drivers/net/ethernet/sfc/siena.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sfc/siena.c b/drivers/net/ethernet/sfc/siena.c index 5735e84c69de..4fdd148747b2 100644 --- a/drivers/net/ethernet/sfc/siena.c +++ b/drivers/net/ethernet/sfc/siena.c @@ -36,6 +36,8 @@ static void siena_push_irq_moderation(struct efx_channel *channel) { efx_dword_t timer_cmd; + BUILD_BUG_ON(EFX_IRQ_MOD_MAX > (1 << FRF_CZ_TC_TIMER_VAL_WIDTH)); + if (channel->irq_moderation) EFX_POPULATE_DWORD_2(timer_cmd, FRF_CZ_TC_TIMER_MODE, |
