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From: Christian Brauner <christian.brauner@ubuntu.com>
To: linux-kernel@vger.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Christian Brauner <christian.brauner@ubuntu.com>,
	Mark Salter <msalter@redhat.com>,
	Aurelien Jacquiot <jacquiot.aurelien@gmail.com>,
	linux-c6x-dev@linux-c6x.org
Subject: [PATCH 10/17] c6x: switch to copy_thread_tls()
Date: Tue, 23 Jun 2020 01:43:19 +0200	[thread overview]
Message-ID: <20200622234326.906346-11-christian.brauner@ubuntu.com> (raw)
In-Reply-To: <20200622234326.906346-1-christian.brauner@ubuntu.com>

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@redhat.com>
Cc: Aurelien Jacquiot <jacquiot.aurelien@gmail.com>
Cc: linux-c6x-dev@linux-c6x.org
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
---
 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


  parent reply	other threads:[~2020-06-22 23:46 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-22 23:43 [PATCH 00/17] arch: remove do_fork() and HAVE_COPY_THREAD_TLS Christian Brauner
2020-06-22 23:43 ` [PATCH 01/17] fork: fold legacy_clone_args_valid() into _do_fork() Christian Brauner
     [not found]   ` <20200627082748.GM5535@shao2-debian>
2020-06-27 12:23     ` [fork] 11689456e6: ltp.clone302.fail Christian Brauner
2020-06-22 23:43 ` [PATCH 02/17] sparc64: enable HAVE_COPY_THREAD_TLS Christian Brauner
2020-06-23  3:35   ` David Miller
2020-06-23  8:42     ` Christian Brauner
2020-06-22 23:43 ` [PATCH 03/17] sparc: share process creation helpers between sparc and sparc64 Christian Brauner
2020-06-22 23:43 ` [PATCH 04/17] sparc: unconditionally enable HAVE_COPY_THREAD_TLS Christian Brauner
2020-06-22 23:43 ` [PATCH 05/17] ia64: enable HAVE_COPY_THREAD_TLS, switch to kernel_clone_args Christian Brauner
2020-06-22 23:43 ` [PATCH 06/17] nios2: " Christian Brauner
2020-06-22 23:43 ` [PATCH 07/17] h8300: select " Christian Brauner
2020-06-22 23:43 ` [PATCH 08/17] fork: remove do_fork() Christian Brauner
2020-06-22 23:43 ` [PATCH 09/17] alpha: switch to copy_thread_tls() Christian Brauner
2020-06-22 23:43 ` Christian Brauner [this message]
2020-06-22 23:43 ` [PATCH 11/17] hexagon: " Christian Brauner
2020-06-23 16:11   ` Brian Cain
2020-06-22 23:43 ` [PATCH 12/17] microblaze: " Christian Brauner
2020-06-22 23:43 ` [PATCH 13/17] nds32: " Christian Brauner
2020-06-22 23:43 ` [PATCH 14/17] sh: " Christian Brauner
2020-06-22 23:43 ` [PATCH 15/17] unicore: " Christian Brauner

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