From 2e653ff0758ae8e47499d588666eb77f6a0fc755 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Sat, 7 Jan 2017 00:02:52 +0300 Subject: [PATCH] sh_eth: get rid of 'sh_eth_cpu_data::shift_rd0' After checking all the available manuals, I have enough information to conclude that the 'shift_rd0' flag is only relevant for the Ether cores supporting so called "intelligent checksum" (and hence having CSMR) which is indicated by the 'hw_crc' flag. Since all the relevant SoCs now have both these flags set, we can at last get rid of the former flag... Signed-off-by: Sergei Shtylyov Signed-off-by: David S. Miller --- drivers/net/ethernet/renesas/sh_eth.c | 5 +---- drivers/net/ethernet/renesas/sh_eth.h | 1 - 2 files changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 9a97cb13029a..6ea30bace685 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -537,7 +537,6 @@ static struct sh_eth_cpu_data r7s72100_data = { .no_ade = 1, .hw_crc = 1, .tsu = 1, - .shift_rd0 = 1, }; static void sh_eth_chip_reset_r8a7740(struct net_device *ndev) @@ -577,7 +576,6 @@ static struct sh_eth_cpu_data r8a7740_data = { .hw_crc = 1, .tsu = 1, .select_mii = 1, - .shift_rd0 = 1, }; /* There is CPU dependent code */ @@ -816,7 +814,6 @@ static struct sh_eth_cpu_data sh7734_data = { .tsu = 1, .hw_crc = 1, .select_mii = 1, - .shift_rd0 = 1, }; /* SH7763 */ @@ -1416,7 +1413,7 @@ static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota) * the RFS bits are from bit 25 to bit 16. So, the * driver needs right shifting by 16. */ - if (mdp->cd->shift_rd0) + if (mdp->cd->hw_crc) desc_status >>= 16; skb = mdp->rx_skbuff[entry]; diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h index 9eec1e185adf..f09fa8b47f9a 100644 --- a/drivers/net/ethernet/renesas/sh_eth.h +++ b/drivers/net/ethernet/renesas/sh_eth.h @@ -490,7 +490,6 @@ struct sh_eth_cpu_data { unsigned no_ade:1; /* E-DMAC DO NOT have ADE bit in EESR */ unsigned hw_crc:1; /* E-DMAC have CSMR */ unsigned select_mii:1; /* EtherC have RMII_MII (MII select register) */ - unsigned shift_rd0:1; /* shift Rx descriptor word 0 right by 16 */ unsigned rmiimode:1; /* EtherC has RMIIMODE register */ unsigned rtrate:1; /* EtherC has RTRATE register */ }; -- 2.20.1