[tip: x86/urgent] x86/acrn: Remove redundant chars from ACRN signature

[tip-bot2 for Shuo Liu]

The following commit has been merged into the x86/urgent branch of tip:

Commit-ID:     d60ed6f07c9c8ed2cbdacea7ab9597ad81454545
Gitweb:        https://git.kernel.org/tip/d60ed6f07c9c8ed2cbdacea7ab9597ad81454545
Author:        Shuo Liu <shuo.a.liu@xxxxxxxxx>
AuthorDate:    Thu, 06 Aug 2020 19:41:11 +08:00
Committer:     Ingo Molnar <mingo@xxxxxxxxxx>
CommitterDate: Thu, 06 Aug 2020 15:20:17 +02:00

x86/acrn: Remove redundant chars from ACRN signature

hypervisor_cpuid_base() only handles 12 chars of the hypervisor
signature string but is provided with 14 chars.

Remove the redundancy. Additionally, replace the user space uint32_t
with preferred kernel type u32.

Signed-off-by: Shuo Liu <shuo.a.liu@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Reviewed-by: Reinette Chatre <reinette.chatre@xxxxxxxxx>
Link: https://lore.kernel.org/r/20200806114111.9448-1-shuo.a.liu@xxxxxxxxx
---
 arch/x86/kernel/cpu/acrn.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/acrn.c b/arch/x86/kernel/cpu/acrn.c
index 3b08cdf..0b2c039 100644
--- a/arch/x86/kernel/cpu/acrn.c
+++ b/arch/x86/kernel/cpu/acrn.c
@@ -17,9 +17,9 @@
 #include <asm/idtentry.h>
 #include <asm/irq_regs.h>
 
-static uint32_t __init acrn_detect(void)
+static u32 __init acrn_detect(void)
 {
-	return hypervisor_cpuid_base("ACRNACRNACRN\0\0", 0);
+	return hypervisor_cpuid_base("ACRNACRNACRN", 0);
 }
 
 static void __init acrn_init_platform(void)