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net: fec: properly guard irq coalesce setup

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commit 7e6303567c upstream.

Prior to the Fixes: commit, the initialization code went through the
same fec_enet_set_coalesce() function as used by ethtool, and that
function correctly checks whether the current variant has support for
irq coalescing.

Now that the initialization code instead calls fec_enet_itr_coal_set()
directly, that call needs to be guarded by a check for the
FEC_QUIRK_HAS_COALESCE bit.

Fixes: df727d4547 (net: fec: don't reset irq coalesce settings to defaults on "ip link up")
Reported-by: Greg Ungerer <gregungerer@westnet.com.au>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221205204604.869853-1-linux@rasmusvillemoes.dk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Rasmus Villemoes
2022-12-05 21:46:04 +01:00
committed by Greg Kroah-Hartman
parent 289721fe09
commit 972707bae3
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/freescale/fec_main.c
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@@ -1163,7 +1163,8 @@ fec_restart(struct net_device *ndev)
writel(0, fep->hwp + FEC_IMASK);
/* Init the interrupt coalescing */
fec_enet_itr_coal_set(ndev);
if (fep->quirks & FEC_QUIRK_HAS_COALESCE)
fec_enet_itr_coal_set(ndev);
}
static void fec_enet_stop_mode(struct fec_enet_private *fep, bool enabled)