staging/android: Remove ram_console driver

All the functionality is now supported by pstore and pstore_ram drivers.

Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Colin Cross <ccross@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig
index 0e16b59..0ce50d1 100644 (file)
--- a/drivers/staging/android/Kconfig
+++ b/drivers/staging/android/Kconfig
@@ -25,11 +25,6 @@ config ANDROID_LOGGER
        tristate "Android log driver"
        default n
 
-config ANDROID_RAM_CONSOLE
-       bool "Android RAM buffer console"
-       depends on !S390 && !UML && HAVE_MEMBLOCK && PSTORE_RAM=y
-       default n
-
 config ANDROID_TIMED_OUTPUT
        bool "Timed output class driver"
        default y

diff --git a/drivers/staging/android/Makefile b/drivers/staging/android/Makefile
index 98711e2..e16fcd5 100644 (file)
--- a/drivers/staging/android/Makefile
+++ b/drivers/staging/android/Makefile
@@ -1,7 +1,6 @@
 obj-$(CONFIG_ANDROID_BINDER_IPC)       += binder.o
 obj-$(CONFIG_ASHMEM)                   += ashmem.o
 obj-$(CONFIG_ANDROID_LOGGER)           += logger.o
-obj-$(CONFIG_ANDROID_RAM_CONSOLE)      += ram_console.o
 obj-$(CONFIG_ANDROID_TIMED_OUTPUT)     += timed_output.o
 obj-$(CONFIG_ANDROID_TIMED_GPIO)       += timed_gpio.o
 obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER)        += lowmemorykiller.o

diff --git a/drivers/staging/android/ram_console.c b/drivers/staging/android/ram_console.c
deleted file mode 100644 (file)
index 7add022..0000000
--- a/drivers/staging/android/ram_console.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/* drivers/android/ram_console.c
- *
- * Copyright (C) 2007-2008 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#define pr_fmt(fmt) "ram_console: " fmt
-
-#include <linux/console.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/proc_fs.h>
-#include <linux/string.h>
-#include <linux/uaccess.h>
-#include <linux/io.h>
-#include <linux/pstore_ram.h>
-#include "ram_console.h"
-
-static struct persistent_ram_zone *ram_console_zone;
-static const char *bootinfo;
-static size_t bootinfo_size;
-
-static void
-ram_console_write(struct console *console, const char *s, unsigned int count)
-{
-       struct persistent_ram_zone *prz = console->data;
-       persistent_ram_write(prz, s, count);
-}
-
-static struct console ram_console = {
-       .name   = "ram",
-       .write  = ram_console_write,
-       .flags  = CON_PRINTBUFFER | CON_ENABLED | CON_ANYTIME,
-       .index  = -1,
-};
-
-void ram_console_enable_console(int enabled)
-{
-       if (enabled)
-               ram_console.flags |= CON_ENABLED;
-       else
-               ram_console.flags &= ~CON_ENABLED;
-}
-
-static int __init ram_console_probe(struct platform_device *pdev)
-{
-       struct ram_console_platform_data *pdata = pdev->dev.platform_data;
-       struct persistent_ram_zone *prz;
-
-       prz = persistent_ram_init_ringbuffer(&pdev->dev, true);
-       if (IS_ERR(prz))
-               return PTR_ERR(prz);
-
-
-       if (pdata) {
-               bootinfo = kstrdup(pdata->bootinfo, GFP_KERNEL);
-               if (bootinfo)
-                       bootinfo_size = strlen(bootinfo);
-       }
-
-       ram_console_zone = prz;
-       ram_console.data = prz;
-
-       register_console(&ram_console);
-
-       return 0;
-}
-
-static struct platform_driver ram_console_driver = {
-       .driver         = {
-               .name   = "ram_console",
-       },
-};
-
-static int __init ram_console_module_init(void)
-{
-       return platform_driver_probe(&ram_console_driver, ram_console_probe);
-}
-
-#ifndef CONFIG_PRINTK
-#define dmesg_restrict 0
-#endif
-
-static ssize_t ram_console_read_old(struct file *file, char __user *buf,
-                                   size_t len, loff_t *offset)
-{
-       loff_t pos = *offset;
-       ssize_t count;
-       struct persistent_ram_zone *prz = ram_console_zone;
-       size_t old_log_size = persistent_ram_old_size(prz);
-       const char *old_log = persistent_ram_old(prz);
-       char *str;
-       int ret;
-
-       if (dmesg_restrict && !capable(CAP_SYSLOG))
-               return -EPERM;
-
-       /* Main last_kmsg log */
-       if (pos < old_log_size) {
-               count = min(len, (size_t)(old_log_size - pos));
-               if (copy_to_user(buf, old_log + pos, count))
-                       return -EFAULT;
-               goto out;
-       }
-
-       /* ECC correction notice */
-       pos -= old_log_size;
-       count = persistent_ram_ecc_string(prz, NULL, 0);
-       if (pos < count) {
-               str = kmalloc(count, GFP_KERNEL);
-               if (!str)
-                       return -ENOMEM;
-               persistent_ram_ecc_string(prz, str, count + 1);
-               count = min(len, (size_t)(count - pos));
-               ret = copy_to_user(buf, str + pos, count);
-               kfree(str);
-               if (ret)
-                       return -EFAULT;
-               goto out;
-       }
-
-       /* Boot info passed through pdata */
-       pos -= count;
-       if (pos < bootinfo_size) {
-               count = min(len, (size_t)(bootinfo_size - pos));
-               if (copy_to_user(buf, bootinfo + pos, count))
-                       return -EFAULT;
-               goto out;
-       }
-
-       /* EOF */
-       return 0;
-
-out:
-       *offset += count;
-       return count;
-}
-
-static const struct file_operations ram_console_file_ops = {
-       .owner = THIS_MODULE,
-       .read = ram_console_read_old,
-};
-
-static int __init ram_console_late_init(void)
-{
-       struct proc_dir_entry *entry;
-       struct persistent_ram_zone *prz = ram_console_zone;
-
-       if (!prz)
-               return 0;
-
-       if (persistent_ram_old_size(prz) == 0)
-               return 0;
-
-       entry = create_proc_entry("last_kmsg", S_IFREG | S_IRUGO, NULL);
-       if (!entry) {
-               pr_err("failed to create proc entry\n");
-               persistent_ram_free_old(prz);
-               return 0;
-       }
-
-       entry->proc_fops = &ram_console_file_ops;
-       entry->size = persistent_ram_old_size(prz) +
-               persistent_ram_ecc_string(prz, NULL, 0) +
-               bootinfo_size;
-
-       return 0;
-}
-
-late_initcall(ram_console_late_init);
-postcore_initcall(ram_console_module_init);