Yoshihiro Shimoda 47bc9c3929 net: renesas: sh_eth: Fix freeing wrong tx descriptor ... [ Upstream commit 0341d5e3d1ee2a36dd5a49b5bef2ce4ad1cfa6b4 ] 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> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-09-22 12:28:06 +02:00
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Kconfig	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
Makefile	…
ravb.h	ravb: Add support for explicit internal clock delay configuration	2020-10-01 12:53:31 -07:00
ravb_main.c	net: renesas: ravb: Fix a stuck issue when a lot of frames are received	2021-05-14 09:50:41 +02:00
ravb_ptp.c	…
sh_eth.c	net: renesas: sh_eth: Fix freeing wrong tx descriptor	2021-09-22 12:28:06 +02:00
sh_eth.h	sh_eth: use Gigabit register map for R7S72100	2020-02-16 19:44:41 -08:00