diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 4c9c67b..fbbc4da 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -1926,6 +1926,7 @@
 	.unlocked_ioctl	= do_ioctl,
 	.open		= do_open,
 	.release	= do_release,
+	.llseek		= noop_llseek,
 };
 
 static struct miscdevice apm_device = {
diff --git a/arch/x86/kernel/cpu/mcheck/mce-severity.c b/arch/x86/kernel/cpu/mcheck/mce-severity.c
index 8a85dd1..1e8d66c 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-severity.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-severity.c
@@ -192,6 +192,7 @@
 	.release	= seq_release,
 	.read		= seq_read,
 	.write		= severities_coverage_write,
+	.llseek		= seq_lseek,
 };
 
 static int __init severities_debugfs_init(void)
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index ed41562..7a35b72 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -1665,6 +1665,7 @@
 	.read			= mce_read,
 	.poll			= mce_poll,
 	.unlocked_ioctl		= mce_ioctl,
+	.llseek		= no_llseek,
 };
 EXPORT_SYMBOL_GPL(mce_chrdev_ops);
 
diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c
index 8afd9f3..90fcf62 100644
--- a/arch/x86/kernel/kdebugfs.c
+++ b/arch/x86/kernel/kdebugfs.c
@@ -78,6 +78,7 @@
 static const struct file_operations fops_setup_data = {
 	.read		= setup_data_read,
 	.open		= setup_data_open,
+	.llseek		= default_llseek,
 };
 
 static int __init
diff --git a/arch/x86/kernel/microcode_core.c b/arch/x86/kernel/microcode_core.c
index fa6551d..0b3d37e 100644
--- a/arch/x86/kernel/microcode_core.c
+++ b/arch/x86/kernel/microcode_core.c
@@ -232,6 +232,7 @@
 	.owner			= THIS_MODULE,
 	.write			= microcode_write,
 	.open			= microcode_open,
+	.llseek		= no_llseek,
 };
 
 static struct miscdevice microcode_dev = {
diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c
index 312ef02..50ac949 100644
--- a/arch/x86/kernel/tlb_uv.c
+++ b/arch/x86/kernel/tlb_uv.c
@@ -1285,6 +1285,7 @@
 	.open		= tunables_open,
 	.read		= tunables_read,
 	.write		= tunables_write,
+	.llseek		= default_llseek,
 };
 
 static int __init uv_ptc_init(void)