Commit-ID:  9ec808a0225aabab59fb2932b70784b087ac0f58
Gitweb:     http://git.kernel.org/tip/9ec808a0225aabab59fb2932b70784b087ac0f58
Author:     [email protected] <[email protected]>
AuthorDate: Wed, 25 Jan 2017 10:35:23 -0600
Committer:  Ingo Molnar <[email protected]>
CommitDate: Wed, 1 Feb 2017 10:21:00 +0100

x86/platform/UV: Ensure uv_system_init is called when necessary

Move the check to whether this is a UV system that needs initialization
from is_uv_system() to the internal uv_system_init() function.  This is
because on a UV system without a HUB the is_uv_system() returns false.
But we still need some specific UV system initialization.  See the
uv_system_init() for change to a quick check if UV is applicable. This
change should not increase overhead since is_uv_system() also called
into this same area.

Signed-off-by: Mike Travis <[email protected]>
Reviewed-by: Russ Anderson <[email protected]>
Acked-by: Thomas Gleixner <[email protected]>
Acked-by: Dimitri Sivanich <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
---
 arch/x86/kernel/smpboot.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 46732dc..386c7f7 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1341,8 +1341,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
        pr_info("CPU0: ");
        print_cpu_info(&cpu_data(0));
 
-       if (is_uv_system())
-               uv_system_init();
+       uv_system_init();
 
        set_mtrr_aps_delayed_init();
 

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