pmaports/device/testing/linux-samsung-n5110/0003-BACKPORT-ARM-wire-up-getrandom-syscall.patch

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From d919f1f5c38205ad2ab38d4c061e8b28e606559b Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Fri, 8 Aug 2014 10:56:34 +0100
Subject: [PATCH 3/3] BACKPORT: ARM: wire up getrandom syscall
Clean cherry pick of eb6452537b280652eee66801ec97cc369e27e5d8.
Add the new getrandom syscall for ARM.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Bug: http://b/29621447
Change-Id: I6d50b57f3a61fbf9102c69103b9a5b7ebf239860
(cherry picked from commit eb6452537b280652eee66801ec97cc369e27e5d8)
[flex1911]: backport to 3.4
[michitux]: backport to 3.0
---
arch/arm/include/asm/unistd.h | 9 +++++++++
arch/arm/kernel/calls.S | 9 +++++++++
2 files changed, 18 insertions(+)
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index 2c04ed5efeb5..96e290b9fecf 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -402,6 +402,7 @@
#define __NR_syncfs (__NR_SYSCALL_BASE+373)
#define __NR_sendmmsg (__NR_SYSCALL_BASE+374)
#define __NR_setns (__NR_SYSCALL_BASE+375)
+#define __NR_getrandom (__NR_SYSCALL_BASE+384)
/*
* The following SWIs are ARM private.
@@ -413,6 +414,14 @@
#define __ARM_NR_usr32 (__ARM_NR_BASE+4)
#define __ARM_NR_set_tls (__ARM_NR_BASE+5)
+/*
+ * This may need to be greater than __NR_last_syscall+1 in order to
+ * account for the padding in the syscall table
+ */
+#ifdef __KERNEL__
+#define __NR_syscalls (388)
+#endif
+
/*
* *NOTE*: This is a ghost syscall private to the kernel. Only the
* __kuser_cmpxchg code in entry-armv.S should be aware of its
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 80f7896cc016..612627f899d4 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -385,6 +385,15 @@
CALL(sys_syncfs)
CALL(sys_sendmmsg)
/* 375 */ CALL(sys_setns)
+ CALL(sys_ni_syscall)
+ CALL(sys_ni_syscall)
+ CALL(sys_ni_syscall)
+ CALL(sys_ni_syscall)
+/* 380 */ CALL(sys_ni_syscall)
+ CALL(sys_ni_syscall)
+ CALL(sys_ni_syscall)
+ CALL(sys_ni_syscall)
+ CALL(sys_getrandom)
#ifndef syscalls_counted
.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
#define syscalls_counted
--
2.19.0