]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
net/sonic: Use MMIO accessors
authorFinn Thain <fthain@telegraphics.com.au>
Wed, 22 Jan 2020 22:07:26 +0000 (09:07 +1100)
committerDavid S. Miller <davem@davemloft.net>
Thu, 23 Jan 2020 20:24:37 +0000 (21:24 +0100)
commite3885f576196ddfc670b3d53e745de96ffcb49ab
treec9f91cac2148e0b3f24cc9c83a345c5bad28d433
parent5fedabf5a70be26b19d7520f09f12a62274317c6
net/sonic: Use MMIO accessors

The driver accesses descriptor memory which is simultaneously accessed by
the chip, so the compiler must not be allowed to re-order CPU accesses.
sonic_buf_get() used 'volatile' to prevent that. sonic_buf_put() should
have done so too but was overlooked.

Fixes: efcce839360f ("[PATCH] macsonic/jazzsonic network drivers update")
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/natsemi/sonic.h