net: vertexcom: mse102x: Return code for mse102x_rx_pkt_spi

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[ Upstream commit 4ecf56f4b6 ]

The MSE102x doesn't provide any interrupt register, so the only way
to handle the level interrupt is to fetch the whole packet from
the MSE102x internal buffer via SPI. So in cases the interrupt
handler fails to do this, it should return IRQ_NONE. This allows
the core to disable the interrupt in case the issue persists
and prevent an interrupt storm.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Link: https://patch.msgid.link/20250509120435.43646-6-wahrenst@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Stefan Wahren 2025-05-09 14:04:34 +02:00 • committed by Greg Kroah-Hartman

parent a440d30c89

commit 7a12cfe386

1 changed files with 9 additions and 6 deletions

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drivers/net/ethernet/vertexcom/mse102x.c

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