From: Christian Brauner Date: Sun, 24 May 2020 21:26:47 +0000 (+0200) Subject: sh: switch to copy_thread_tls() X-Git-Tag: v5.9-rc1~162^2~3 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=15350c4226c7a3cdce4f2feb0fb96ed0986cf9a5;p=thirdparty%2Flinux.git sh: 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: Rich Felker Cc: Yoshinori Sato Cc: linux-sh@vger.kernel.org Signed-off-by: Christian Brauner --- diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 9fc2b010e938c..e10118d61ce77 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -70,6 +70,7 @@ config SUPERH select ARCH_HIBERNATION_POSSIBLE if MMU select SPARSE_IRQ select HAVE_STACKPROTECTOR + select HAVE_COPY_THREAD_TLS help The SuperH is a RISC processor targeted for use in embedded systems and consumer electronics; it was also used in the Sega Dreamcast diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c index 456cc8d171f72..537a82d806165 100644 --- a/arch/sh/kernel/process_32.c +++ b/arch/sh/kernel/process_32.c @@ -115,8 +115,8 @@ EXPORT_SYMBOL(dump_fpu); asmlinkage void ret_from_fork(void); asmlinkage void ret_from_kernel_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 thread_info *ti = task_thread_info(p); struct pt_regs *childregs; @@ -158,7 +158,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp, ti->addr_limit = USER_DS; if (clone_flags & CLONE_SETTLS) - childregs->gbr = childregs->regs[0]; + childregs->gbr = tls; childregs->regs[0] = 0; /* Set return value for child */ p->thread.pc = (unsigned long) ret_from_fork;