From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 6 Nov 2006 09:49:02 +0000 (+0100)
Subject: [S390] IRQs too early enabled.
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c4972f33169e3e1ce06ad00917ddaf2c3b49b36a;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

[S390] IRQs too early enabled.

setup_lowcore() calls ctl_set_bit() which returns withs interrupts
enabled. The setup arch code is not supposed to enable interrupts that
early. Therefore use the __ctl_set_bit() variant.
This fixes the not working lock dependency validator on non 64 bit
systems.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index a31abddf115b..2aa13e8e000a 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -450,7 +450,7 @@ setup_lowcore(void)
 		lc->extended_save_area_addr = (__u32)
 			__alloc_bootmem(PAGE_SIZE, PAGE_SIZE, 0);
 		/* enable extended save area */
-		ctl_set_bit(14, 29);
+		__ctl_set_bit(14, 29);
 	}
 #endif
 	set_prefix((u32)(unsigned long) lc);