From 967747bbc084b93b54e66f9047d342232314cd25 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd@arndb.de>
Date: Fri, 11 Feb 2022 21:42:45 +0100
Subject: uaccess: remove CONFIG_SET_FS

There are no remaining callers of set_fs(), so CONFIG_SET_FS
can be removed globally, along with the thread_info field and
any references to it.

This turns access_ok() into a cheaper check against TASK_SIZE_MAX.

As CONFIG_SET_FS is now gone, drop all remaining references to
set_fs()/get_fs(), mm_segment_t, user_addr_max() and uaccess_kernel().

Acked-by: Sam Ravnborg <sam@ravnborg.org> # for sparc32 changes
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Tested-by: Sergey Matyukevich <sergey.matyukevich@synopsys.com> # for arc changes
Acked-by: Stafford Horne <shorne@gmail.com> # [openrisc, asm-generic]
Acked-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/Kconfig | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'arch/Kconfig')

diff --git a/arch/Kconfig b/arch/Kconfig
index fa5db36bda67..99349547afed 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -24,9 +24,6 @@ config KEXEC_ELF
 config HAVE_IMA_KEXEC
 	bool
 
-config SET_FS
-	bool
-
 config HOTPLUG_SMT
 	bool
 
-- 
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