X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fchar%2Fmem.c;h=934ffafedaea207131f7d193bed9e75c929f4db9;hb=77b96bd7e5ee0b44aed1b77fef5949bc19e8301f;hp=e83623ead4414efaf02a8d7e124f5719b18479c4;hpb=6e18933f2b6156d0a0ec9d5522ab6a6033cf7241;p=linux-2.6

diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index e83623ead4..934ffafeda 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -364,6 +364,7 @@ static int mmap_mem(struct file * file, struct vm_area_struct * vma)
 	return 0;
 }
 
+#ifdef CONFIG_DEVKMEM
 static int mmap_kmem(struct file * file, struct vm_area_struct * vma)
 {
 	unsigned long pfn;
@@ -384,6 +385,7 @@ static int mmap_kmem(struct file * file, struct vm_area_struct * vma)
 	vma->vm_pgoff = pfn;
 	return mmap_mem(file, vma);
 }
+#endif
 
 #ifdef CONFIG_CRASH_DUMP
 /*
@@ -422,6 +424,7 @@ static ssize_t read_oldmem(struct file *file, char __user *buf,
 extern long vread(char *buf, char *addr, unsigned long count);
 extern long vwrite(char *buf, char *addr, unsigned long count);
 
+#ifdef CONFIG_DEVKMEM
 /*
  * This function reads the *virtual* memory as seen by the kernel.
  */
@@ -626,6 +629,7 @@ static ssize_t write_kmem(struct file * file, const char __user * buf,
  	*ppos = p;
  	return virtr + wrote;
 }
+#endif
 
 #ifdef CONFIG_DEVPORT
 static ssize_t read_port(struct file * file, char __user * buf,
@@ -803,6 +807,7 @@ static const struct file_operations mem_fops = {
 	.get_unmapped_area = get_unmapped_area_mem,
 };
 
+#ifdef CONFIG_DEVKMEM
 static const struct file_operations kmem_fops = {
 	.llseek		= memory_lseek,
 	.read		= read_kmem,
@@ -811,6 +816,7 @@ static const struct file_operations kmem_fops = {
 	.open		= open_kmem,
 	.get_unmapped_area = get_unmapped_area_mem,
 };
+#endif
 
 static const struct file_operations null_fops = {
 	.llseek		= null_lseek,
@@ -889,11 +895,13 @@ static int memory_open(struct inode * inode, struct file * filp)
 			filp->f_mapping->backing_dev_info =
 				&directly_mappable_cdev_bdi;
 			break;
+#ifdef CONFIG_DEVKMEM
 		case 2:
 			filp->f_op = &kmem_fops;
 			filp->f_mapping->backing_dev_info =
 				&directly_mappable_cdev_bdi;
 			break;
+#endif
 		case 3:
 			filp->f_op = &null_fops;
 			break;
@@ -942,7 +950,9 @@ static const struct {
 	const struct file_operations	*fops;
 } devlist[] = { /* list of minor devices */
 	{1, "mem",     S_IRUSR | S_IWUSR | S_IRGRP, &mem_fops},
+#ifdef CONFIG_DEVKMEM
 	{2, "kmem",    S_IRUSR | S_IWUSR | S_IRGRP, &kmem_fops},
+#endif
 	{3, "null",    S_IRUGO | S_IWUGO,           &null_fops},
 #ifdef CONFIG_DEVPORT
 	{4, "port",    S_IRUSR | S_IWUSR | S_IRGRP, &port_fops},