* [PATCH AUTOSEL 4.19 23/56] sh_eth: check sh_eth_cpu_data::dual_port when dumping registers
[not found] <20200124142012.29752-1-sashal@kernel.org>
@ 2020-01-24 14:19 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2020-01-24 14:19 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Sergei Shtylyov, David S . Miller, Sasha Levin, netdev, linux-sh
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
[ Upstream commit 3249b1e442a1be1a6b9f1026785b519d1443f807 ]
When adding the sh_eth_cpu_data::dual_port flag I forgot to add the flag
checks to __sh_eth_get_regs(), causing the non-existing TSU registers to
be dumped by 'ethtool' on the single port Ether controllers having TSU...
Fixes: a94cf2a614f8 ("sh_eth: fix TSU init on SH7734/R8A7740")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/renesas/sh_eth.c | 38 +++++++++++++++------------
1 file changed, 21 insertions(+), 17 deletions(-)
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5e3e6e262ba37..6068e96f5ac1e 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2184,24 +2184,28 @@ static size_t __sh_eth_get_regs(struct net_device *ndev, u32 *buf)
if (cd->tsu) {
add_tsu_reg(ARSTR);
add_tsu_reg(TSU_CTRST);
- add_tsu_reg(TSU_FWEN0);
- add_tsu_reg(TSU_FWEN1);
- add_tsu_reg(TSU_FCM);
- add_tsu_reg(TSU_BSYSL0);
- add_tsu_reg(TSU_BSYSL1);
- add_tsu_reg(TSU_PRISL0);
- add_tsu_reg(TSU_PRISL1);
- add_tsu_reg(TSU_FWSL0);
- add_tsu_reg(TSU_FWSL1);
+ if (cd->dual_port) {
+ add_tsu_reg(TSU_FWEN0);
+ add_tsu_reg(TSU_FWEN1);
+ add_tsu_reg(TSU_FCM);
+ add_tsu_reg(TSU_BSYSL0);
+ add_tsu_reg(TSU_BSYSL1);
+ add_tsu_reg(TSU_PRISL0);
+ add_tsu_reg(TSU_PRISL1);
+ add_tsu_reg(TSU_FWSL0);
+ add_tsu_reg(TSU_FWSL1);
+ }
add_tsu_reg(TSU_FWSLC);
- add_tsu_reg(TSU_QTAGM0);
- add_tsu_reg(TSU_QTAGM1);
- add_tsu_reg(TSU_FWSR);
- add_tsu_reg(TSU_FWINMK);
- add_tsu_reg(TSU_ADQT0);
- add_tsu_reg(TSU_ADQT1);
- add_tsu_reg(TSU_VTAG0);
- add_tsu_reg(TSU_VTAG1);
+ if (cd->dual_port) {
+ add_tsu_reg(TSU_QTAGM0);
+ add_tsu_reg(TSU_QTAGM1);
+ add_tsu_reg(TSU_FWSR);
+ add_tsu_reg(TSU_FWINMK);
+ add_tsu_reg(TSU_ADQT0);
+ add_tsu_reg(TSU_ADQT1);
+ add_tsu_reg(TSU_VTAG0);
+ add_tsu_reg(TSU_VTAG1);
+ }
add_tsu_reg(TSU_ADSBSY);
add_tsu_reg(TSU_TEN);
add_tsu_reg(TSU_POST1);
--
2.20.1
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