char/generic_nvram: Remove as unused
authorFinn Thain <fthain@telegraphics.com.au>
Tue, 15 Jan 2019 04:18:56 +0000 (15:18 +1100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 22 Jan 2019 09:21:45 +0000 (10:21 +0100)
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/char/Makefile
drivers/char/generic_nvram.c [deleted file]

index b8d42b4..fbea7dd 100644 (file)
@@ -26,11 +26,7 @@ obj-$(CONFIG_RTC)            += rtc.o
 obj-$(CONFIG_HPET)             += hpet.o
 obj-$(CONFIG_EFI_RTC)          += efirtc.o
 obj-$(CONFIG_XILINX_HWICAP)    += xilinx_hwicap/
-ifeq ($(CONFIG_GENERIC_NVRAM),y)
-  obj-$(CONFIG_NVRAM)  += generic_nvram.o
-else
-  obj-$(CONFIG_NVRAM)  += nvram.o
-endif
+obj-$(CONFIG_NVRAM)            += nvram.o
 obj-$(CONFIG_TOSHIBA)          += toshiba.o
 obj-$(CONFIG_DS1620)           += ds1620.o
 obj-$(CONFIG_HW_RANDOM)                += hw_random/
diff --git a/drivers/char/generic_nvram.c b/drivers/char/generic_nvram.c
deleted file mode 100644 (file)
index 0c22b95..0000000
+++ /dev/null
@@ -1,160 +0,0 @@
-/*
- * Generic /dev/nvram driver for architectures providing some
- * "generic" hooks, that is :
- *
- * nvram_read_byte, nvram_write_byte, nvram_sync, nvram_get_size
- *
- * Note that an additional hook is supported for PowerMac only
- * for getting the nvram "partition" informations
- *
- */
-
-#define NVRAM_VERSION "1.1"
-
-#include <linux/module.h>
-
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/miscdevice.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/mutex.h>
-#include <linux/nvram.h>
-#include <linux/pagemap.h>
-#include <linux/uaccess.h>
-#include <asm/nvram.h>
-#ifdef CONFIG_PPC_PMAC
-#include <asm/machdep.h>
-#endif
-
-#define NVRAM_SIZE     8192
-
-static DEFINE_MUTEX(nvram_mutex);
-static ssize_t nvram_len;
-
-static loff_t nvram_llseek(struct file *file, loff_t offset, int origin)
-{
-       return generic_file_llseek_size(file, offset, origin,
-                                       MAX_LFS_FILESIZE, nvram_len);
-}
-
-static ssize_t read_nvram(struct file *file, char __user *buf,
-                         size_t count, loff_t *ppos)
-{
-       unsigned int i;
-       char __user *p = buf;
-
-       if (!access_ok(buf, count))
-               return -EFAULT;
-       if (*ppos >= nvram_len)
-               return 0;
-       for (i = *ppos; count > 0 && i < nvram_len; ++i, ++p, --count)
-               if (__put_user(nvram_read_byte(i), p))
-                       return -EFAULT;
-       *ppos = i;
-       return p - buf;
-}
-
-static ssize_t write_nvram(struct file *file, const char __user *buf,
-                          size_t count, loff_t *ppos)
-{
-       unsigned int i;
-       const char __user *p = buf;
-       char c;
-
-       if (!access_ok(buf, count))
-               return -EFAULT;
-       if (*ppos >= nvram_len)
-               return 0;
-       for (i = *ppos; count > 0 && i < nvram_len; ++i, ++p, --count) {
-               if (__get_user(c, p))
-                       return -EFAULT;
-               nvram_write_byte(c, i);
-       }
-       *ppos = i;
-       return p - buf;
-}
-
-static int nvram_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-       switch(cmd) {
-#ifdef CONFIG_PPC_PMAC
-       case OBSOLETE_PMAC_NVRAM_GET_OFFSET:
-               printk(KERN_WARNING "nvram: Using obsolete PMAC_NVRAM_GET_OFFSET ioctl\n");
-       case IOC_NVRAM_GET_OFFSET: {
-               int part, offset;
-
-               if (!machine_is(powermac))
-                       return -EINVAL;
-               if (copy_from_user(&part, (void __user*)arg, sizeof(part)) != 0)
-                       return -EFAULT;
-               if (part < pmac_nvram_OF || part > pmac_nvram_NR)
-                       return -EINVAL;
-               offset = pmac_get_partition(part);
-               if (copy_to_user((void __user*)arg, &offset, sizeof(offset)) != 0)
-                       return -EFAULT;
-               break;
-       }
-#endif /* CONFIG_PPC_PMAC */
-       case IOC_NVRAM_SYNC:
-               nvram_sync();
-               break;
-       default:
-               return -EINVAL;
-       }
-
-       return 0;
-}
-
-static long nvram_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-       int ret;
-
-       mutex_lock(&nvram_mutex);
-       ret = nvram_ioctl(file, cmd, arg);
-       mutex_unlock(&nvram_mutex);
-
-       return ret;
-}
-
-const struct file_operations nvram_fops = {
-       .owner          = THIS_MODULE,
-       .llseek         = nvram_llseek,
-       .read           = read_nvram,
-       .write          = write_nvram,
-       .unlocked_ioctl = nvram_unlocked_ioctl,
-};
-
-static struct miscdevice nvram_dev = {
-       NVRAM_MINOR,
-       "nvram",
-       &nvram_fops
-};
-
-int __init nvram_init(void)
-{
-       int ret = 0;
-
-       printk(KERN_INFO "Generic non-volatile memory driver v%s\n",
-               NVRAM_VERSION);
-       ret = misc_register(&nvram_dev);
-       if (ret != 0)
-               goto out;
-
-       nvram_len = nvram_get_size();
-       if (nvram_len < 0)
-               nvram_len = NVRAM_SIZE;
-
-out:
-       return ret;
-}
-
-void __exit nvram_cleanup(void)
-{
-        misc_deregister( &nvram_dev );
-}
-
-module_init(nvram_init);
-module_exit(nvram_cleanup);
-MODULE_LICENSE("GPL");