Motivation for this change

Fix #21619

Things done

• Tested using sandboxing
  (nix.useSandbox on NixOS,
  or option build-use-sandbox in nix.conf
  on non-NixOS)
• Built on platform(s)
  • NixOS
  • macOS
  • Linux
• Tested compilation of all pkgs that depend on this change using nix-shell -p nox --run "nox-review wip" -> Failed, see below
• Tested execution of all binary files (usually in ./result/bin/)
• Fits CONTRIBUTING.md.

I tried to build all pkgs that depend on this change but it fails. However I don't think it is related to my change:

LD [M] /tmp/nix-build-dpdk-16.04-4.6.3.drv-1/dpdk-16.04/x86_64-native-linuxapp-gcc/build/lib/librte_eal/linuxapp/kni/rte_kni.o
/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/x86_64-native-linuxapp-gcc/build/lib/librte_eal/linuxapp/kni/kni_net.c: In function 'kni_net_tx':
/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/x86_64-native-linuxapp-gcc/build/lib/librte_eal/linuxapp/kni/kni_net.c:399:5: error: 'struct net_device' has no member named 'trans_start'
dev->trans_start = jiffies; /* save the timestamp */
^
/nix/store/kqxj66xzi1dhjbp033yjx6h5nvn1kwm8-linux-4.7-rc6-dev/lib/modules/4.7.0-rc6/source/scripts/Makefile.build:289: recipe for target '/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/x86_64-native-linuxapp-gcc/build/lib/librte_eal/linuxapp/kni/kni_net.o' failed
make[11]: *** [/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/x86_64-native-linuxapp-gcc/build/lib/librte_eal/linuxapp/kni/kni_net.o] Error 1
/nix/store/kqxj66xzi1dhjbp033yjx6h5nvn1kwm8-linux-4.7-rc6-dev/lib/modules/4.7.0-rc6/source/Makefile:1457: recipe for target 'module/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/x86_64-native-linuxapp-gcc/build/lib/librte_eal/linuxapp/kni' failed
make[10]: *** [module/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/x86_64-native-linuxapp-gcc/build/lib/librte_eal/linuxapp/kni] Error 2
Makefile:150: recipe for target 'sub-make' failed
make[9]: *** [sub-make] Error 2
Makefile:24: recipe for target '__sub-make' failed
make[8]: *** [__sub-make] Error 2
/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/mk/rte.module.mk:79: recipe for target 'rte_kni.ko' failed
make[7]: *** [rte_kni.ko] Error 2
/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/mk/rte.subdir.mk:61: recipe for target 'kni' failed
make[6]: *** [kni] Error 2
/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/mk/rte.subdir.mk:61: recipe for target 'linuxapp' failed
make[5]: *** [linuxapp] Error 2
/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/mk/rte.subdir.mk:61: recipe for target 'librte_eal' failed
make[4]: *** [librte_eal] Error 2
/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/mk/rte.sdkbuild.mk:77: recipe for target 'lib' failed
make[3]: *** [lib] Error 2
/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/mk/rte.sdkroot.mk:123: recipe for target 'all' failed
make[2]: *** [all] Error 2
/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/mk/rte.sdkinstall.mk:84: recipe for target 'pre_install' failed
make[1]: *** [pre_install] Error 2
/tmp/nix-build-dpdk-16.04-4.7-rc6.drv-0/dpdk-16.04/mk/rte.sdkroot.mk:98: recipe for target 'install' failed
make: *** [install] Error 2
builder for ‘/nix/store/1ffgi07hv2mqzpw8h8a94hg3aiwayx1v-dpdk-16.04-4.7-rc6.drv’ failed with exit code 2
error: build of ‘/nix/store/1ffgi07hv2mqzpw8h8a94hg3aiwayx1v-dpdk-16.04-4.7-rc6.drv’ failed