Yoshihiro Shimoda 0341d5e3d1 net: renesas: sh_eth: Fix freeing wrong tx descriptor ... The cur_tx counter must be incremented after TACT bit of txdesc->status was set. However, a CPU is possible to reorder instructions and/or memory accesses between cur_tx and txdesc->status. And then, if TX interrupt happened at such a timing, the sh_eth_tx_free() may free the descriptor wrongly. So, add wmb() before cur_tx++. Otherwise NETDEV WATCHDOG timeout is possible to happen. Fixes: 86a74ff21a ("net: sh_eth: add support for Renesas SuperH Ethernet") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-09-07 14:02:02 +01:00
..
Kconfig	ethernet: fix PTP_1588_CLOCK dependencies	2021-08-13 17:49:05 -07:00
Makefile	ethernet: renesas: convert to SPDX identifiers	2018-09-10 10:11:53 -07:00
ravb_main.c	ravb: Add reset support	2021-08-25 11:18:17 +01:00
ravb_ptp.c	ravb: Add multi_irq to struct ravb_hw_info	2021-08-25 11:18:16 +01:00
ravb.h	ravb: Add reset support	2021-08-25 11:18:17 +01:00
sh_eth.c	net: renesas: sh_eth: Fix freeing wrong tx descriptor	2021-09-07 14:02:02 +01:00
sh_eth.h	sh_eth: place RX/TX descriptor *enum*s after their *struct*s	2021-03-12 17:50:42 -08:00