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authorArnd Bergmann <arnd@arndb.de>2022-02-11 17:19:14 +0100
committerArnd Bergmann <arnd@arndb.de>2022-02-25 09:36:06 +0100
commita5ad837843b63d4f0d90b5cd74dc8bc25a291cfd (patch)
tree47e2d070e3cc549ab8c5cd43961f4630156a85d6 /arch/sparc/mm
parent5a06fcb15b43d1f7bf740c672950122331cb5655 (diff)
sparc64: remove CONFIG_SET_FS support
sparc64 uses address space identifiers to differentiate between kernel and user space, using ASI_P for kernel threads but ASI_AIUS for normal user space, with the option of changing between them. As nothing really changes the ASI any more, just hardcode ASI_AIUS everywhere. Kernel threads are not allowed to access __user pointers anyway. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/sparc/mm')
-rw-r--r--arch/sparc/mm/init_64.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 1b23639e2fcd..8b1911591581 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -709,9 +709,10 @@ static void __init inherit_prom_mappings(void)
void prom_world(int enter)
{
- if (!enter)
- set_fs(get_fs());
-
+ /*
+ * No need to change the address space any more, just flush
+ * the register windows
+ */
__asm__ __volatile__("flushw");
}