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authorChristian Brauner <christian.brauner@ubuntu.com>2020-05-24 23:19:09 +0200
committerChristian Brauner <christian.brauner@ubuntu.com>2020-07-04 23:41:37 +0200
commitad1bb82c057ecebfdb0b619e023c57b425ef7e7e (patch)
tree24d63854b24932f3f7baa1f363244c287ded1bc1 /arch
parent643d48b8e6e71a77214c8653003f2ecd9bc10f9e (diff)
microblaze: switch to copy_thread_tls()
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: Michal Simek <monstr@monstr.eu> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/microblaze/Kconfig1
-rw-r--r--arch/microblaze/kernel/process.c6
2 files changed, 4 insertions, 3 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index d262ac0c8714..e3a211a41880 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -46,6 +46,7 @@ config MICROBLAZE
select CPU_NO_EFFICIENT_FFS
select MMU_GATHER_NO_RANGE if MMU
select SPARSE_IRQ
+ select HAVE_COPY_THREAD_TLS
# Endianness selection
choice
diff --git a/arch/microblaze/kernel/process.c b/arch/microblaze/kernel/process.c
index 6527ec22f158..c2ca9c326510 100644
--- a/arch/microblaze/kernel/process.c
+++ b/arch/microblaze/kernel/process.c
@@ -54,8 +54,8 @@ void flush_thread(void)
{
}
-int copy_thread(unsigned long clone_flags, unsigned long usp,
- unsigned long arg, struct task_struct *p)
+int copy_thread_tls(unsigned long clone_flags, unsigned long usp,
+ unsigned long arg, struct task_struct *p, unsigned long tls)
{
struct pt_regs *childregs = task_pt_regs(p);
struct thread_info *ti = task_thread_info(p);
@@ -114,7 +114,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
* which contains TLS area
*/
if (clone_flags & CLONE_SETTLS)
- childregs->r21 = childregs->r10;
+ childregs->r21 = tls;
return 0;
}