Patch "net: ethernet: xilinx: Mark XILINX_LL_TEMAC broken on 64-bit" has been added to the 4.4-stable tree

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

net: ethernet: xilinx: Mark XILINX_LL_TEMAC broken on 64-bit

to the 4.4-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:
net-ethernet-xilinx-mark-xilinx_ll_temac-broken-on-64-bit.patch
and it can be found in the queue-4.4 subdirectory.

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

From: Geert Uytterhoeven <[email protected]>
Date: Wed, 29 Nov 2017 11:01:09 +0100
Subject: net: ethernet: xilinx: Mark XILINX_LL_TEMAC broken on 64-bit

From: Geert Uytterhoeven <[email protected]>

[ Upstream commit 15bfe05c8d6386f1a90e9340d15336e85e32aad6 ]

On 64-bit (e.g. powerpc64/allmodconfig):

drivers/net/ethernet/xilinx/ll_temac_main.c: In function 'temac_start_xmit_done':
drivers/net/ethernet/xilinx/ll_temac_main.c:633:22: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
dev_kfree_skb_irq((struct sk_buff *)cur_p->app4);
^

cdmac_bd.app4 is u32, so it is too small to hold a kernel pointer.

Note that several other fields in struct cdmac_bd are also too small to hold physical addresses on 64-bit platforms.

---
 drivers/net/ethernet/xilinx/Kconfig |    1 +
 1 file changed, 1 insertion(+)

@@ -34,6 +34,7 @@ config XILINX_AXI_EMAC
 config XILINX_LL_TEMAC
 	tristate "Xilinx LL TEMAC (LocalLink Tri-mode Ethernet MAC) driver"
 	depends on (PPC || MICROBLAZE)
+	depends on !64BIT || BROKEN
 	select PHYLIB
 	---help---
 	  This driver supports the Xilinx 10/100/1000 LocalLink TEMAC

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

queue-4.4/net-ethernet-xilinx-mark-xilinx_ll_temac-broken-on-64-bit.patch