cryptodev: Fix changed mm interface in Kernel 4.9
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 (From OE-Core rev: 29e3e2999ae0fd92fd41c2180359e110301a488c) Signed-off-by: Daniel Schultz <d.schultz@phytec.de> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -5,7 +5,8 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=b234ee4d69f5fce4486a80fdaf4a4263"
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SRC_URI = "http://download.gna.org/cryptodev-linux/cryptodev-linux-${PV}.tar.gz \
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file://06d6b560c6e45dc317dae47c74706fa43f4a31d8.patch \
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file://cb186f682679383e8b5806240927903730ce85d9.patch"
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file://cb186f682679383e8b5806240927903730ce85d9.patch \
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file://0001-Adjust-to-another-change-in-the-user-page-API.patch"
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SRC_URI[md5sum] = "02644cc4cd02301e0b503a332eb2f0b5"
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SRC_URI[sha256sum] = "67fabde9fb67b286a96c4f45b594b0eccd0f761b495705c18f2ae9461b831376"
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@ -0,0 +1,40 @@
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From f126e4837e6334d0464540995df7426fedf6b175 Mon Sep 17 00:00:00 2001
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From: Michael Weiser <michael.weiser@gmx.de>
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Date: Fri, 11 Nov 2016 18:09:32 +0100
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Subject: [PATCH] Adjust to another change in the user page API
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4.9.0 will replace the write and force flags of get_user_pages_remote()
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with a gup_flags parameter[1]. Distinguish the two APIs based on kernel
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version we're compiling for.
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[1] https://github.com/torvalds/linux/commit/9beae1ea89305a9667ceaab6d0bf46a045ad71e7
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Upstream-Status: Backport
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Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
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---
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zc.c | 8 +++++++-
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1 file changed, 7 insertions(+), 1 deletion(-)
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diff --git a/zc.c b/zc.c
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index a97b49f..e766ee3 100644
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--- a/zc.c
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+++ b/zc.c
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@@ -65,7 +65,13 @@ int __get_userbuf(uint8_t __user *addr, uint32_t len, int write,
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ret = get_user_pages(
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#endif
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task, mm,
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- (unsigned long)addr, pgcount, write, 0, pg, NULL);
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+ (unsigned long)addr, pgcount,
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+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 0))
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+ write ? FOLL_WRITE : 0,
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+#else
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+ write, 0,
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+#endif
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+ pg, NULL);
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up_read(&mm->mmap_sem);
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if (ret != pgcount)
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return -EINVAL;
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--
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1.9.1
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