From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michal Simek Subject: Re: [PATCH] net: ethernet: xilinx: Mark XILINX_LL_TEMAC broken on 64-bit Date: Wed, 29 Nov 2017 12:51:45 +0100 Message-ID: References: <1511949669-30379-1-git-send-email-geert+renesas@glider.be> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: Arnd Bergmann , , , , To: Geert Uytterhoeven , Michal Simek , "David S . Miller" Return-path: In-Reply-To: <1511949669-30379-1-git-send-email-geert+renesas@glider.be> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On 29.11.2017 11:01, Geert Uytterhoeven wrote: > 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 > --- > drivers/net/ethernet/xilinx/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/net/ethernet/xilinx/Kconfig b/drivers/net/ethernet/xilinx/Kconfig > index 6d68c8a8f4f2ac7f..da4ec575ccf9ba4a 100644 > --- 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 > Yes. This IP is available only on big endian 32bit systems. Thanks, Michal