cryptodev-module: Fix build on kernel v3.19
Kernel commit
f938612dd97d481b8b5bf960c992ae577f081c17 removes the get_unused_fd_macro().
This patch replaces the macro with its output.
| NOTE: make -j 8 KERNEL_DIR=/home/ricardo/curro/qtec/qt5022/build-qt5022-cesium/build/tmp/sysroots/qt5022/usr/src/kernel PREFIX=/home/ricardo/curro/qtec/qt5022/build-qt5022-cesium/build/tmp/work/qt5022-poky-linux/cryptodev-module/1.6-r0/image KERNEL_PATH=/home/ricardo/curro/qtec/qt5022/build-qt5022-cesium/build/tmp/sysroots/qt5022/usr/src/kernel KERNEL_SRC=/home/ricardo/curro/qtec/qt5022/build-qt5022-cesium/build/tmp/sysroots/qt5022/usr/src/kernel KERNEL_VERSION=3.19.0-qtec-standard CC=x86_64-poky-linux-gcc LD=x86_64-poky-linux-ld.bfd AR=x86_64-poky-linux-ar
| make -C /home/ricardo/curro/qtec/qt5022/build-qt5022-cesium/build/tmp/sysroots/qt5022/usr/src/kernel SUBDIRS=`pwd` modules
| make[1]: warning: jobserver unavailable: using -j1. Add '+' to parent make rule.
| make[1]: Entering directory '/home/ricardo/curro/qtec/qt5022/build-qt5022-cesium/build/tmp/sysroots/qt5022/usr/src/kernel'
| CC [M] /home/ricardo/curro/qtec/qt5022/build-qt5022-cesium/build/tmp/work/qt5022-poky-linux/cryptodev-module/1.6-r0/cryptodev-linux-1.6/ioctl.o
| /home/ricardo/curro/qtec/qt5022/build-qt5022-cesium/build/tmp/work/qt5022-poky-linux/cryptodev-module/1.6-r0/cryptodev-linux-1.6/ioctl.c: In function 'clonefd':
| /home/ricardo/curro/qtec/qt5022/build-qt5022-cesium/build/tmp/work/qt5022-poky-linux/cryptodev-module/1.6-r0/cryptodev-linux-1.6/ioctl.c:532:2: error: implicit declaration of function 'get_unused_fd' [-Werror=implicit-function-declaration]
| ret = get_unused_fd();
| ^
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
