From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 11 Mar 2020 18:13:38 +0000 (+0100)
Subject: 5.5-stable patches
X-Git-Tag: v5.5.9~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=cdb6fabd4b75b28a645fb8d67a38a8422107721d;p=thirdparty%2Fkernel%2Fstable-queue.git

5.5-stable patches

added patches:
	csky-implement-copy_thread_tls.patch
---

diff --git a/queue-5.5/csky-implement-copy_thread_tls.patch b/queue-5.5/csky-implement-copy_thread_tls.patch
new file mode 100644
index 00000000000..a0bdece2011
--- /dev/null
+++ b/queue-5.5/csky-implement-copy_thread_tls.patch
@@ -0,0 +1,56 @@
+From 0b9f386c4be6493d282aab0af6f9b70c62142777 Mon Sep 17 00:00:00 2001
+From: Guo Ren <guoren@linux.alibaba.com>
+Date: Wed, 12 Feb 2020 10:24:52 +0800
+Subject: csky: Implement copy_thread_tls
+
+From: Guo Ren <guoren@linux.alibaba.com>
+
+commit 0b9f386c4be6493d282aab0af6f9b70c62142777 upstream.
+
+This is required for clone3 which passes the TLS value through a
+struct rather than a register.
+
+Cc: Amanieu d'Antras <amanieu@gmail.com>
+Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/csky/Kconfig          |    1 +
+ arch/csky/kernel/process.c |    7 ++++---
+ 2 files changed, 5 insertions(+), 3 deletions(-)
+
+--- a/arch/csky/Kconfig
++++ b/arch/csky/Kconfig
+@@ -37,6 +37,7 @@ config CSKY
+ 	select GX6605S_TIMER if CPU_CK610
+ 	select HAVE_ARCH_TRACEHOOK
+ 	select HAVE_ARCH_AUDITSYSCALL
++	select HAVE_COPY_THREAD_TLS
+ 	select HAVE_DYNAMIC_FTRACE
+ 	select HAVE_FUNCTION_TRACER
+ 	select HAVE_FUNCTION_GRAPH_TRACER
+--- a/arch/csky/kernel/process.c
++++ b/arch/csky/kernel/process.c
+@@ -34,10 +34,11 @@ unsigned long thread_saved_pc(struct tas
+ 	return sw->r15;
+ }
+ 
+-int copy_thread(unsigned long clone_flags,
++int copy_thread_tls(unsigned long clone_flags,
+ 		unsigned long usp,
+ 		unsigned long kthread_arg,
+-		struct task_struct *p)
++		struct task_struct *p,
++		unsigned long tls)
+ {
+ 	struct switch_stack *childstack;
+ 	struct pt_regs *childregs = task_pt_regs(p);
+@@ -64,7 +65,7 @@ int copy_thread(unsigned long clone_flag
+ 			childregs->usp = usp;
+ 		if (clone_flags & CLONE_SETTLS)
+ 			task_thread_info(p)->tp_value = childregs->tls
+-						      = childregs->regs[0];
++						      = tls;
+ 
+ 		childregs->a0 = 0;
+ 		childstack->r15 = (unsigned long) ret_from_fork;
diff --git a/queue-5.5/series b/queue-5.5/series
index a4a769a1766..1c84df7af90 100644
--- a/queue-5.5/series
+++ b/queue-5.5/series
@@ -187,3 +187,4 @@ efi-x86-handle-by-ref-arguments-covering-multiple-pages-in-mixed-mode.patch
 efi-read_once-rng-seed-size-before-munmap.patch
 net-stmmac-fix-notifier-registration.patch
 block-bfq-remove-ifdefs-from-around-gets-puts-of-bfq-groups.patch
+csky-implement-copy_thread_tls.patch