diff options
| author | Finn Thain <fthain@telegraphics.com.au> | 2020-01-23 09:07:26 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-05 13:03:45 +0000 |
| commit | 1bd3de96497766f9769e941c09a41a7479642644 (patch) | |
| tree | f36b524a6cf6540a2c48a989f304de12d50a5dfa /net/ipv4/tcp_input.c | |
| parent | 6425373e5397630b8a7672b9bf2b1acad241dd54 (diff) | |
net/sonic: Use MMIO accessors
[ Upstream commit e3885f576196ddfc670b3d53e745de96ffcb49ab ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/ipv4/tcp_input.c')
0 files changed, 0 insertions, 0 deletions