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authorJani Nikula <jani.nikula@intel.com>2018-11-20 13:14:08 +0200
committerJani Nikula <jani.nikula@intel.com>2018-11-20 13:14:08 +0200
commit2ac5e38ea4203852d6e99edd3cf11f044b0a409f (patch)
tree1ef02da98d56309368ad2b6a4e492bafe5bb4faf /arch/x86/kernel/check.c
parentf48cc647f3e196a3179d695d3c2d56c13e9dec98 (diff)
parent9235dd441af43599b9cdcce599a3da4083fcad3c (diff)
downloadlinux-next-2ac5e38ea4203852d6e99edd3cf11f044b0a409f.tar.gz
linux-next-2ac5e38ea4203852d6e99edd3cf11f044b0a409f.zip
Merge drm/drm-next into drm-intel-next-queued
Pull in v4.20-rc3 via drm-next. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'arch/x86/kernel/check.c')
-rw-r--r--arch/x86/kernel/check.c28
1 files changed, 23 insertions, 5 deletions
diff --git a/arch/x86/kernel/check.c b/arch/x86/kernel/check.c
index 33399426793e..1979a76bfadd 100644
--- a/arch/x86/kernel/check.c
+++ b/arch/x86/kernel/check.c
@@ -1,4 +1,7 @@
// SPDX-License-Identifier: GPL-2.0
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/kthread.h>
@@ -31,11 +34,17 @@ static __init int set_corruption_check(char *arg)
ssize_t ret;
unsigned long val;
+ if (!arg) {
+ pr_err("memory_corruption_check config string not provided\n");
+ return -EINVAL;
+ }
+
ret = kstrtoul(arg, 10, &val);
if (ret)
return ret;
memory_corruption_check = val;
+
return 0;
}
early_param("memory_corruption_check", set_corruption_check);
@@ -45,6 +54,11 @@ static __init int set_corruption_check_period(char *arg)
ssize_t ret;
unsigned long val;
+ if (!arg) {
+ pr_err("memory_corruption_check_period config string not provided\n");
+ return -EINVAL;
+ }
+
ret = kstrtoul(arg, 10, &val);
if (ret)
return ret;
@@ -59,6 +73,11 @@ static __init int set_corruption_check_size(char *arg)
char *end;
unsigned size;
+ if (!arg) {
+ pr_err("memory_corruption_check_size config string not provided\n");
+ return -EINVAL;
+ }
+
size = memparse(arg, &end);
if (*end == '\0')
@@ -113,7 +132,7 @@ void __init setup_bios_corruption_check(void)
}
if (num_scan_areas)
- printk(KERN_INFO "Scanning %d areas for low memory corruption\n", num_scan_areas);
+ pr_info("Scanning %d areas for low memory corruption\n", num_scan_areas);
}
@@ -132,8 +151,7 @@ void check_for_bios_corruption(void)
for (; size; addr++, size -= sizeof(unsigned long)) {
if (!*addr)
continue;
- printk(KERN_ERR "Corrupted low memory at %p (%lx phys) = %08lx\n",
- addr, __pa(addr), *addr);
+ pr_err("Corrupted low memory at %p (%lx phys) = %08lx\n", addr, __pa(addr), *addr);
corruption = 1;
*addr = 0;
}
@@ -157,11 +175,11 @@ static int start_periodic_check_for_corruption(void)
if (!num_scan_areas || !memory_corruption_check || corruption_check_period == 0)
return 0;
- printk(KERN_INFO "Scanning for low memory corruption every %d seconds\n",
- corruption_check_period);
+ pr_info("Scanning for low memory corruption every %d seconds\n", corruption_check_period);
/* First time we run the checks right away */
schedule_delayed_work(&bios_check_work, 0);
+
return 0;
}
device_initcall(start_periodic_check_for_corruption);