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Message-ID: <20120518222617.GL23089@lizard>
Date: Fri, 18 May 2012 15:26:18 -0700
From: Anton Vorontsov <anton.vorontsov@...aro.org>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Kees Cook <keescook@...omium.org>,
Colin Cross <ccross@...roid.com>,
Tony Luck <tony.luck@...el.com>
Cc: Arnd Bergmann <arnd@...db.de>,
John Stultz <john.stultz@...aro.org>,
Shuah Khan <shuahkhan@...il.com>, arve@...roid.com,
Rebecca Schultz Zavin <rebecca@...roid.com>,
Jesper Juhl <jj@...osbits.net>,
Randy Dunlap <rdunlap@...otime.net>,
Stephen Boyd <sboyd@...eaurora.org>,
Thomas Meyer <thomas@...3r.de>,
Andrew Morton <akpm@...ux-foundation.org>,
Marco Stornelli <marco.stornelli@...il.com>,
WANG Cong <xiyou.wangcong@...il.com>,
linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
linaro-kernel@...ts.linaro.org, patches@...aro.org,
kernel-team@...roid.com
Subject: [PATCH 12/14] 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@...aro.org>
Acked-by: Kees Cook <keescook@...omium.org>
Acked-by: Colin Cross <ccross@...roid.com>
---
drivers/staging/android/Kconfig | 5 -
drivers/staging/android/Makefile | 1 -
drivers/staging/android/ram_console.c | 179 ---------------------------------
3 files changed, 185 deletions(-)
delete mode 100644 drivers/staging/android/ram_console.c
diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig
index 63f9822..df42c6b 100644
--- 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 4677e7b..5f3ef2e 100644
--- 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
index 82323bb..0000000
--- a/drivers/staging/android/ram_console.c
+++ /dev/null
@@ -1,179 +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.
- *
- */
-
-#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) {
- printk(KERN_ERR "ram_console: 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);
--
1.7.9.2
--
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