netdev - [PATCH net-next v2 1/5] sh_eth: check sh_eth_cpu_data::no_tx

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Message-ID: <495ef7e8-43e4-9cda-b0a5-5fbec4a5668e@cogentembedded.com>
Date:   Sat, 15 Feb 2020 23:08:20 +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 1/5] sh_eth: check sh_eth_cpu_data::no_tx_cntrs
 when dumping registers

When adding the sh_eth_cpu_data::no_tx_cntrs flag I forgot to add the
flag check to  __sh_eth_get_regs(), causing the non-existing TX counter
registers to be considered for dumping on the R7S72100 SoC (the register
offset sanity check has the final say here)...

Fixes: ce9134dff6d9 ("sh_eth: add sh_eth_cpu_data::no_tx_cntrs 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 |   10 ++++++----
 1 file changed, 6 insertions(+), 4 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
@@ -2184,10 +2184,12 @@ static size_t __sh_eth_get_regs(struct n
 		add_reg(BCULR);
 	add_reg(MAHR);
 	add_reg(MALR);
-	add_reg(TROCR);
-	add_reg(CDCR);
-	add_reg(LCCR);
-	add_reg(CNDCR);
+	if (!cd->no_tx_cntrs) {
+		add_reg(TROCR);
+		add_reg(CDCR);
+		add_reg(LCCR);
+		add_reg(CNDCR);
+	}
 	add_reg(CEFCR);
 	add_reg(FRECR);
 	add_reg(TSFRCR);