[dpdk-dev] [PATCH] igb_uio: fix missing include of slab.h

Jan Viktorin viktorin at rehivetech.com
Mon Jul 27 13:16:49 CEST 2015


Hello Thomas,

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
  LD      /home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/lib/librte_eal/linuxapp/igb_uio/built-in.o
  CC [M]  /home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/lib/librte_eal/linuxapp/igb_uio/igb_uio.o
/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/lib/librte_eal/linuxapp/igb_uio/igb_uio.c: In function 'igbuio_pci_probe':
/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/lib/librte_eal/linuxapp/igb_uio/igb_uio.c:440:2: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration]
  udev = kzalloc(sizeof(struct rte_uio_pci_dev), GFP_KERNEL);
  ^
/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/lib/librte_eal/linuxapp/igb_uio/igb_uio.c:440:7: error: assignment makes pointer from integer without a cast [-Werror]
  udev = kzalloc(sizeof(struct rte_uio_pci_dev), GFP_KERNEL);
       ^
/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/lib/librte_eal/linuxapp/igb_uio/igb_uio.c:557:2: error: implicit declaration of function 'kfree' [-Werror=implicit-function-declaration]
  kfree(udev);
  ^
cc1: all warnings being treated as errors
scripts/Makefile.build:263: recipe for target '/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/lib/librte_eal/linuxapp/igb_uio/igb_uio.o' failed
make[3]: *** [/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/lib/librte_eal/linuxapp/igb_uio/igb_uio.o] Error 1
Makefile:1381: recipe for target '_module_/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/lib/librte_eal/linuxapp/igb_uio' failed
make[2]: *** [_module_/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/lib/librte_eal/linuxapp/igb_uio] Error 2
package/pkg-generic.mk:156: recipe for target '/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/.stamp_built' failed
make[1]: *** [/home/jviki/Projects/buildroot-dpdk-zedboard/build/build/dpdk-2.1.0-rc1/.stamp_built] Error 2
Makefile:16: recipe for target '_all' failed
make: *** [_all] Error 2

Regards
Jan

On Mon, 27 Jul 2015 00:31:41 +0200
Thomas Monjalon <thomas.monjalon at 6wind.com> wrote:

> 2015-07-24 19:11, Jan Viktorin:
> > The missing header prevents to build with linux v3.18.
> 
> Please could you give more details of why build is broken?
> What is the error message?
> I don't remember having seen such issue.
> 
> Thanks



-- 
   Jan Viktorin                  E-mail: Viktorin at RehiveTech.com
   System Architect              Web:    www.RehiveTech.com
   RehiveTech
   Brno, Czech Republic


More information about the dev mailing list