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/openbmc/linux/drivers/net/wireless/ath/wil6210/ |
H A D | txrx.c | a1526f7e Mon May 16 14:23:33 CDT 2016 Maya Erez <qca_merez@qca.qualcomm.com> wil6210: fix dma mapping error cleanup in __wil_tx_vring_tso
In case we fail to map one of the TSO SKB fragments, we need to clear all the mapped descriptors, from swhead to swhead+descs_used-1.
Change the desc index calculation to i = (swhead + descs_used - 1) % vring->size; to prevent unmpping of (swhead + descs_used) descriptor that wasn't mapped.
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com> a1526f7e Mon May 16 14:23:33 CDT 2016 Maya Erez <qca_merez@qca.qualcomm.com> wil6210: fix dma mapping error cleanup in __wil_tx_vring_tso In case we fail to map one of the TSO SKB fragments, we need to clear all the mapped descriptors, from swhead to swhead+descs_used-1. Change the desc index calculation to i = (swhead + descs_used - 1) % vring->size; to prevent unmpping of (swhead + descs_used) descriptor that wasn't mapped. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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