On Mon, Mar 20, 2017 at 11:22:08AM +0000, Ferruh Yigit wrote:
> compile error:
> .../build/build/lib/librte_eal/linuxapp/kni/kni_net.c:124:6:
> error: implicit declaration of function ‘signal_pending’
> [-Werror=implicit-function-declaration]
> if (signal_pending(current) || ret_val <= 0) {
> ^~~~~~~~~~~~~~
>
> Linux 4.11 moves signal function declarations to its own header file:
> Linux: 174cd4b1e5fb ("sched/headers: Prepare to move signal wakeup &
> sigpending methods from <linux/sched.h> into <linux/sched/signal.h>")
>
> User new header file "linux/sched/signal.h" to fix build error.
>
> Reported-by: Jerin Jacob <jerin.ja...@caviumnetworks.com>
> Signed-off-by: Ferruh Yigit <ferruh.yi...@intel.com>
Tested-by: Jerin Jacob <jerin.ja...@caviumnetworks.com>
Kernel version: 4.11-rc3
> ---
> lib/librte_eal/linuxapp/kni/compat.h | 6 ++++++
> lib/librte_eal/linuxapp/kni/kni_dev.h | 6 ++++++
> 2 files changed, 12 insertions(+)
>
> diff --git a/lib/librte_eal/linuxapp/kni/compat.h
> b/lib/librte_eal/linuxapp/kni/compat.h
> index 78da08e..d96275a 100644
> --- a/lib/librte_eal/linuxapp/kni/compat.h
> +++ b/lib/librte_eal/linuxapp/kni/compat.h
> @@ -2,6 +2,8 @@
> * Minimal wrappers to allow compiling kni on older kernels.
> */
>
> +#include <linux/version.h>
> +
> #ifndef RHEL_RELEASE_VERSION
> #define RHEL_RELEASE_VERSION(a, b) (((a) << 8) + (b))
> #endif
> @@ -67,3 +69,7 @@
> (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 34)))
> #undef NET_NAME_UNKNOWN
> #endif
> +
> +#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 11, 0)
> +#define HAVE_SIGNAL_FUNCTIONS_OWN_HEADER
> +#endif
> diff --git a/lib/librte_eal/linuxapp/kni/kni_dev.h
> b/lib/librte_eal/linuxapp/kni/kni_dev.h
> index 002e5fa..72385ab 100644
> --- a/lib/librte_eal/linuxapp/kni/kni_dev.h
> +++ b/lib/librte_eal/linuxapp/kni/kni_dev.h
> @@ -30,9 +30,15 @@
> #endif
> #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
>
> +#include "compat.h"
> +
> #include <linux/if.h>
> #include <linux/wait.h>
> +#ifdef HAVE_SIGNAL_FUNCTIONS_OWN_HEADER
> +#include <linux/sched/signal.h>
> +#else
> #include <linux/sched.h>
> +#endif
> #include <linux/netdevice.h>
> #include <linux/spinlock.h>
> #include <linux/list.h>
> --
> 2.9.3
>
