Patch "sh_eth: fix SH7757 GEther initialization" has been added to the 4.14-stable tree

This is a note to let you know that I've just added the patch titled

sh_eth: fix SH7757 GEther initialization

to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
sh_eth-fix-sh7757-gether-initialization.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Sergei Shtylyov <[email protected]>
Date: Thu, 4 Jan 2018 21:06:49 +0300
Subject: sh_eth: fix SH7757 GEther initialization

From: Sergei Shtylyov <[email protected]>

[ Upstream commit 5133550296d43236439494aa955bfb765a89f615 ]

Renesas SH7757 has 2 Fast and 2 Gigabit Ether controllers, while the 'sh_eth' driver can only reset and initialize TSU of the first controller pair. Shimoda-san tried to solve that adding the 'needs_init' member to the 'struct sh_eth_plat_data', however the platform code still never sets this flag. I think that we can infer this information from the 'devno' variable (set to 'platform_device::id') and reset/init the Ether controller pair only for an even 'devno'; therefore 'sh_eth_plat_data::needs_init' can be removed...

---
 drivers/net/ethernet/renesas/sh_eth.c |    4 ++--
 include/linux/sh_eth.h                |    1 -
 2 files changed, 2 insertions(+), 3 deletions(-)

@@ -3241,8 +3241,8 @@ static int sh_eth_drv_probe(struct platf
 		ndev->features = NETIF_F_HW_VLAN_CTAG_FILTER;
 	}
 
-	/* initialize first or needed device */
-	if (!devno || pd->needs_init) {
+	/* Need to init only the first port of the two sharing a TSU */
+	if (devno % 2 == 0) {
 		if (mdp->cd->chip_reset)
 			mdp->cd->chip_reset(ndev);
 

@@ -17,7 +17,6 @@ struct sh_eth_plat_data {
 	unsigned char mac_addr[ETH_ALEN];
 	unsigned no_ether_link:1;
 	unsigned ether_link_active_low:1;
-	unsigned needs_init:1;
 };
 
 #endif

Patches currently in stable-queue which might be from [email protected] are

queue-4.14/sh_eth-fix-sh7757-gether-initialization.patch queue-4.14/sh_eth-fix-tsu-resource-handling.patch