6.6-stable review patch. If anyone has any objections, please let me know.
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From: Martin Jocic martin.jocic@kvaser.com
[ Upstream commit ac765219c2c4e44f29063724c8d36435a3e61985 ]
This check is already done at the creation of the net devices in kvaser_pciefd_setup_can_ctrls called from kvaser_pciefd_probe.
If it fails, the driver won't load, so there should be no need to repeat the check inside the ISR. The number of channels is read from the FPGA and should be trusted.
Signed-off-by: Martin Jocic martin.jocic@kvaser.com Link: https://lore.kernel.org/all/20240614151524.2718287-3-martin.jocic@kvaser.com Signed-off-by: Marc Kleine-Budde mkl@pengutronix.de Stable-dep-of: dd885d90c047 ("can: kvaser_pciefd: Use a single write when releasing RX buffers") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/net/can/kvaser_pciefd.c | 6 ------ 1 file changed, 6 deletions(-)
diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index a57005faa04f..076fc2f5b34b 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -1641,12 +1641,6 @@ static irqreturn_t kvaser_pciefd_irq_handler(int irq, void *dev) kvaser_pciefd_receive_irq(pcie);
for (i = 0; i < pcie->nr_channels; i++) { - if (!pcie->can[i]) { - dev_err(&pcie->pci->dev, - "IRQ mask points to unallocated controller\n"); - break; - } - /* Check that mask matches channel (i) IRQ mask */ if (board_irq & irq_mask->kcan_tx[i]) kvaser_pciefd_transmit_irq(pcie->can[i]);