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 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

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-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From foo@baz Thu Feb 1 13:45:42 CET 2018

From: Geert Uytterhoeven geert+renesas@glider.be Date: Wed, 29 Nov 2017 11:01:09 +0100 Subject: net: ethernet: xilinx: Mark XILINX_LL_TEMAC broken on 64-bit

From: Geert Uytterhoeven geert+renesas@glider.be

[ 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.

Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/ethernet/xilinx/Kconfig | 1 + 1 file changed, 1 insertion(+)

--- a/drivers/net/ethernet/xilinx/Kconfig +++ b/drivers/net/ethernet/xilinx/Kconfig @@ -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 geert+renesas@glider.be are

queue-4.14/net-ethernet-xilinx-mark-xilinx_ll_temac-broken-on-64-bit.patch