netdev - [PATCH net-next v2 3/5] sh_eth: check sh_eth_cpu_data::no

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Date:   Sat, 15 Feb 2020 23:10:53 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     "David S. Miller" <davem@...emloft.net>,
        linux-renesas-soc@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH net-next v2 3/5] sh_eth: check sh_eth_cpu_data::no_xdfar when
 dumping registers

When adding the sh_eth_cpu_data::no_xdfar flag I forgot to add the flag
check to  __sh_eth_get_regs(), causing the non-existing RDFAR/TDFAR to be
considered for dumping on the R-Car gen1/2 SoCs (the register offset check
has the final say here)...

Fixes: 4c1d45850d5 ("sh_eth: add sh_eth_cpu_data::cexcr flag")
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Tested-by: Chris Brandt <chris.brandt@...esas.com>

---
Changes in version 2:
- added Chris' tag.

 drivers/net/ethernet/renesas/sh_eth.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Index: net-next/drivers/net/ethernet/renesas/sh_eth.c
===================================================================
--- net-next.orig/drivers/net/ethernet/renesas/sh_eth.c
+++ net-next/drivers/net/ethernet/renesas/sh_eth.c
@@ -2140,11 +2140,13 @@ static size_t __sh_eth_get_regs(struct n
 	add_reg(EESR);
 	add_reg(EESIPR);
 	add_reg(TDLAR);
-	add_reg(TDFAR);
+	if (!cd->no_xdfar)
+		add_reg(TDFAR);
 	add_reg(TDFXR);
 	add_reg(TDFFR);
 	add_reg(RDLAR);
-	add_reg(RDFAR);
+	if (!cd->no_xdfar)
+		add_reg(RDFAR);
 	add_reg(RDFXR);
 	add_reg(RDFFR);
 	add_reg(TRSCER);