From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas.monjalon@6wind.com>
Subject: Re: [PATCH] igb_uio: fix missing include of slab.h
Date: Mon, 27 Jul 2015 15:02:24 +0200
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References: <20150724191144.7a11eac0@pcviktorin.fit.vutbr.cz>
 <2309703.xDBbXC0Ccl@xps13> <20150727131649.407f968a@pcviktorin.fit.vutbr.cz>
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To: Jan Viktorin <viktorin@rehivetech.com>
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2015-07-27 13:16, Jan Viktorin:
> I am building in a slightly non-standard way, because I tried to integrate DPDK into Buildroot system.
> The problem is with kzalloc and kfree which are undefined in the igb_uio driver. I do not use that
> driver, however, it has failed to build. See below:
> 
> /usr/bin/make -j5 -C /home/jviki/Projects/buildroot-dpdk-zedboard/build/build/linux-xilinx-v2015.1 HOSTCC="/usr/bin/gcc" HOSTCFLAGS="" ARCH=arm INSTALL_MOD_PATH=/home/jviki/Projects/buildroot-dpdk-zedboard/build/target CROSS_COMPILE=" /home/jviki/Projects/buildroot-dpdk-zedboard/build/host/usr/bin/arm-none-linux-gnueabi-" DEPMOD=/home/jviki/Projects/buildroot-dpdk-zedboard/build/host/sbin/depmod LOADADDR="0x8000" RTE_SDK=/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1 RTE_TARGET=arm-armv7-a-linuxapp-gcc RTE_SRCDIR=/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1 CROSS=/home/jviki/Projects/buildroot-dpdk-zedboard/build/host/usr/bin/arm-none-linux-gnueabi- M=/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/lib/librte_eal
 /linuxapp/igb_uio

It's not clear which condition makes the build failing
(buildroot, arm, kernel version). But if it fixes it for you,
there is no reason not to apply this simple fix.

Applied, thanks.