[PATCH] cryptodev: Fix changed mm interface in Kernel 4.9

[Daniel Schultz <d.schultz@phytec.de>]

The memory management interface has changed in Kernel 4.9.

This patch adds a patch which fixes the paramter of the function call.

Backport from https://github.com/cryptodev-linux/cryptodev-linux
Based on commit f126e4837e6334d0464540995df7426fedf6b175

Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
---
 meta/recipes-kernel/cryptodev/cryptodev.inc        |  3 +-
 ...st-to-another-change-in-the-user-page-API.patch | 36 ++++++++++++++++++++++
 2 files changed, 38 insertions(+), 1 deletion(-)
 create mode 100644 meta/recipes-kernel/cryptodev/files/0001-Adjust-to-another-change-in-the-user-page-API.patch

diff --git a/meta/recipes-kernel/cryptodev/cryptodev.inc b/meta/recipes-kernel/cryptodev/cryptodev.inc
index 160ab30..6241238 100644
--- a/meta/recipes-kernel/cryptodev/cryptodev.inc
+++ b/meta/recipes-kernel/cryptodev/cryptodev.inc
@@ -5,7 +5,8 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
 
 SRC_URI = "http://download.gna.org/cryptodev-linux/cryptodev-linux-${PV}.tar.gz \
            file://06d6b560c6e45dc317dae47c74706fa43f4a31d8.patch \
-           file://cb186f682679383e8b5806240927903730ce85d9.patch"
+           file://cb186f682679383e8b5806240927903730ce85d9.patch \
+           file://0001-Adjust-to-another-change-in-the-user-page-API.patch"
 
 SRC_URI[md5sum] = "02644cc4cd02301e0b503a332eb2f0b5"
 SRC_URI[sha256sum] = "67fabde9fb67b286a96c4f45b594b0eccd0f761b495705c18f2ae9461b831376"
diff --git a/meta/recipes-kernel/cryptodev/files/0001-Adjust-to-another-change-in-the-user-page-API.patch b/meta/recipes-kernel/cryptodev/files/0001-Adjust-to-another-change-in-the-user-page-API.patch
new file mode 100644
index 0000000..8a544ff
--- /dev/null
+++ b/meta/recipes-kernel/cryptodev/files/0001-Adjust-to-another-change-in-the-user-page-API.patch
@@ -0,0 +1,36 @@
+From f126e4837e6334d0464540995df7426fedf6b175 Mon Sep 17 00:00:00 2001
+From: Michael Weiser <michael.weiser@gmx.de>
+Date: Fri, 11 Nov 2016 18:09:32 +0100
+Subject: [PATCH] Adjust to another change in the user page API
+
+4.9.0 will replace the write and force flags of get_user_pages_remote()
+with a gup_flags parameter[1]. Distinguish the two APIs based on kernel
+version we're compiling for.
+
+[1] https://github.com/torvalds/linux/commit/9beae1ea89305a9667ceaab6d0bf46a045ad71e7
+---
+ zc.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/zc.c b/zc.c
+index a97b49f..e766ee3 100644
+--- a/zc.c
++++ b/zc.c
+@@ -65,7 +65,13 @@ int __get_userbuf(uint8_t __user *addr, uint32_t len, int write,
+ 	ret = get_user_pages(
+ #endif
+ 			task, mm,
+-			(unsigned long)addr, pgcount, write, 0, pg, NULL);
++			(unsigned long)addr, pgcount,
++#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0))
++			write ? FOLL_WRITE : 0,
++#else
++			write, 0,
++#endif
++			pg, NULL);
+ 	up_read(&mm->mmap_sem);
+ 	if (ret != pgcount)
+ 		return -EINVAL;
+-- 
+1.9.1
+
-- 
1.9.1