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authorMarc Kleine-Budde <mkl@pengutronix.de>2026-07-09 09:54:26 +0200
committerMarc Kleine-Budde <mkl@pengutronix.de>2026-07-29 12:00:00 +0200
commit68c5724ecd159992f76edb7b57dc508a44c8b7da (patch)
treea8a60b4725f8ce58c2643aa754e7ef6576020503 /tools/perf/scripts/python/bin/stackcollapse-report
parent26504844613fb44c7cab1c5f6fcff77861709baa (diff)
can: gs_usb: gs_usb_receive_bulk_callback(): resubmit URB on skb allocation failure
If the allocation of the SKB in gs_usb_receive_bulk_callback() fails, the driver returns from the callback without resubmitting the URB in order to receive further USB in URBs. This results in a silent performance degradation which, if it occurs repeatedly, results in starvation of USB in traffic. Instead of returning immediately, try to resend the URB. If this also fails, this is logged as an info message. Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices") Fixes: 26949ac935e3 ("can: gs_usb: add CAN-FD support") Link: https://patch.msgid.link/20260709-gs_usb-resubmit-urb-v1-1-4dd40030cc84@pengutronix.de Cc: stable@kernel.org Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-report')
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