cryptodev: update to handle 4.10 kernel API

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 57 insertions, 0 deletions

diff --git a/meta/recipes-kernel/cryptodev/files/kernel-4-10-changes.patch b/meta/recipes-kernel/cryptodev/files/kernel-4-10-changes.patch
new file mode 100644
index 0000000000..93d608b81d
--- /dev/null
+++ b/meta/recipes-kernel/cryptodev/files/kernel-4-10-changes.patch
@@ -0,0 +1,57 @@
+Upstream-Status: Backport
+Signed-off-by: Ross Burton <ross.burton@intel.com>
+
+From 2b29be8ac41414ed19cb4f5d5626d9bd0d7b11a8 Mon Sep 17 00:00:00 2001
+From: Cristian Stoica <cristian.stoica@nxp.com>
+Date: Wed, 8 Feb 2017 12:11:04 +0200
+Subject: [PATCH] adjust to API changes in kernel >=4.10
+
+There are many changes related to get_user_pages and the code is rewritten
+for clarity.
+
+Signed-off-by: Cristian Stoica <cristian.stoica@nxp.com>
+---
+ zc.c | 28 +++++++++++++++++-----------
+ 1 file changed, 17 insertions(+), 11 deletions(-)
+
+diff --git a/zc.c b/zc.c
+index e766ee3..2f4ea99 100644
+--- a/zc.c
++++ b/zc.c
+@@ -59,19 +59,25 @@ int __get_userbuf(uint8_t __user *addr, uint32_t len, int write,
+        }
+ 
+        down_read(&mm->mmap_sem);
+-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 6, 0))
+-       ret = get_user_pages_remote(
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0))
++       ret = get_user_pages(task, mm,
++                       (unsigned long)addr, pgcount, write, 0, pg, NULL);
+ #else
+-       ret = get_user_pages(
+-#endif
+-                       task, mm,
+-                       (unsigned long)addr, pgcount,
+-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0))
+-                       write ? FOLL_WRITE : 0,
+-#else
+-                       write, 0,
+-#endif
++#  if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 9, 0))
++       ret = get_user_pages_remote(task, mm,
++                       (unsigned long)addr, pgcount, write, 0, pg, NULL);
++#  else
++#    if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0))
++       ret = get_user_pages_remote(task, mm,
++                       (unsigned long)addr, pgcount, write ? FOLL_WRITE : 0,
+                        pg, NULL);
++#    else
++       ret = get_user_pages_remote(task, mm,
++                       (unsigned long)addr, pgcount, write ? FOLL_WRITE : 0,
++                       pg, NULL, NULL);
++#    endif
++#  endif
++#endif
+        up_read(&mm->mmap_sem);
+        if (ret != pgcount)
+                return -EINVAL;