Searched hist:dc90506f (Results 1 – 1 of 1) sorted by relevance
/openbmc/linux/drivers/net/wireless/ath/wil6210/ |
H A D | txrx.c | dc90506f Thu Aug 18 08:52:15 CDT 2016 Maya Erez <qca_merez@qca.qualcomm.com> wil6210: prevent usage of incorrect TX hwtail
txdata->enabled is used in order to determine if the TX vring is valid. As the data transmit is handled in a different context, in case txdata->enabled is set before vring->hwtail is updated, an old or corrupted vring->hwtail can be used. Protect setting of txdata->enabled and vring->hwtail to prevent a case where TX vring start handling TX packets before setting vring->hwtail.
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com> dc90506f Thu Aug 18 08:52:15 CDT 2016 Maya Erez <qca_merez@qca.qualcomm.com> wil6210: prevent usage of incorrect TX hwtail txdata->enabled is used in order to determine if the TX vring is valid. As the data transmit is handled in a different context, in case txdata->enabled is set before vring->hwtail is updated, an old or corrupted vring->hwtail can be used. Protect setting of txdata->enabled and vring->hwtail to prevent a case where TX vring start handling TX packets before setting vring->hwtail. Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
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