[PATCH 10/17] c6x: switch to copy_thread_tls()

[Christian Brauner]

Use the copy_thread_tls() calling convention which passes tls through a
register. This is required so we can remove the copy_thread{_tls}() split
and remove the HAVE_COPY_THREAD_TLS macro.

CC: Mark Salter <msalter@xxxxxxxxxx>
Cc: Aurelien Jacquiot <jacquiot.aurelien@xxxxxxxxx>
Cc: linux-c6x-dev@xxxxxxxxxxxxx
Signed-off-by: Christian Brauner <christian.brauner@xxxxxxxxxx>
---
 arch/c6x/Kconfig          | 1 +
 arch/c6x/kernel/process.c | 6 +++---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 6444ebfd06a6..9cde76a5928e 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -22,6 +22,7 @@ config C6X
 	select GENERIC_CLOCKEVENTS
 	select MODULES_USE_ELF_RELA
 	select MMU_GATHER_NO_RANGE if MMU
+	select HAVE_COPY_THREAD_TLS
 
 config MMU
 	def_bool n
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
index cb9c8b63cddd..afa3ea9a93aa 100644
--- a/arch/c6x/kernel/process.c
+++ b/arch/c6x/kernel/process.c
@@ -104,9 +104,9 @@ void start_thread(struct pt_regs *regs, unsigned int pc, unsigned long usp)
 /*
  * Copy a new thread context in its stack.
  */
-int copy_thread(unsigned long clone_flags, unsigned long usp,
-		unsigned long ustk_size,
-		struct task_struct *p)
+int copy_thread_tls(unsigned long clone_flags, unsigned long usp,
+		    unsigned long ustk_size, struct task_struct *p,
+		    unsigned long tls)
 {
 	struct pt_regs *childregs;
 
-- 
2.27.0