From 471452104b8520337ae2fb48c4e61cd4896e025d Mon Sep 17 00:00:00 2001
From: Alexey Dobriyan <adobriyan@gmail.com>
Date: Mon, 14 Dec 2009 18:00:08 -0800
Subject: const: constify remaining dev_pm_ops

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/s390/block/dcssblk.c | 2 +-
 drivers/s390/block/xpram.c   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'drivers/s390/block')

diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index f76f4bd82b9..9b43ae94beb 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -1005,7 +1005,7 @@ static int dcssblk_thaw(struct device *dev)
 	return 0;
 }
 
-static struct dev_pm_ops dcssblk_pm_ops = {
+static const struct dev_pm_ops dcssblk_pm_ops = {
 	.freeze		= dcssblk_freeze,
 	.thaw		= dcssblk_thaw,
 	.restore	= dcssblk_restore,
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c
index 116d1b3eeb1..118de392af6 100644
--- a/drivers/s390/block/xpram.c
+++ b/drivers/s390/block/xpram.c
@@ -407,7 +407,7 @@ static int xpram_restore(struct device *dev)
 	return 0;
 }
 
-static struct dev_pm_ops xpram_pm_ops = {
+static const struct dev_pm_ops xpram_pm_ops = {
 	.restore	= xpram_restore,
 };
 
-- 
cgit v1.2.3-70-g09d2


From e7d2860b690d4f3bed6824757c540579638e3d1e Mon Sep 17 00:00:00 2001
From: André Goddard Rosa <andre.goddard@gmail.com>
Date: Mon, 14 Dec 2009 18:01:06 -0800
Subject: tree-wide: convert open calls to remove spaces to skip_spaces() lib
 function
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Makes use of skip_spaces() defined in lib/string.c for removing leading
spaces from strings all over the tree.

It decreases lib.a code size by 47 bytes and reuses the function tree-wide:
   text    data     bss     dec     hex filename
  64688     584     592   65864   10148 (TOTALS-BEFORE)
  64641     584     592   65817   10119 (TOTALS-AFTER)

Also, while at it, if we see (*str && isspace(*str)), we can be sure to
remove the first condition (*str) as the second one (isspace(*str)) also
evaluates to 0 whenever *str == 0, making it redundant. In other words,
"a char equals zero is never a space".

Julia Lawall tried the semantic patch (http://coccinelle.lip6.fr) below,
and found occurrences of this pattern on 3 more files:
    drivers/leds/led-class.c
    drivers/leds/ledtrig-timer.c
    drivers/video/output.c

@@
expression str;
@@

( // ignore skip_spaces cases
while (*str &&  isspace(*str)) { \(str++;\|++str;\) }
|
- *str &&
isspace(*str)
)

Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Cc: Julia Lawall <julia@diku.dk>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Neil Brown <neilb@suse.de>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Cc: David Howells <dhowells@redhat.com>
Cc: <linux-ext4@vger.kernel.org>
Cc: Samuel Ortiz <samuel@sortiz.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/s390/kernel/debug.c              |  3 ++-
 arch/um/drivers/mconsole_kern.c       | 16 +++++++---------
 arch/x86/kernel/cpu/mtrr/if.c         | 11 ++++-------
 drivers/leds/led-class.c              |  2 +-
 drivers/leds/ledtrig-timer.c          |  4 ++--
 drivers/md/dm-table.c                 |  6 ++----
 drivers/md/md.c                       |  4 ++--
 drivers/parisc/pdc_stable.c           |  9 +++------
 drivers/platform/x86/thinkpad_acpi.c  |  7 ++-----
 drivers/pnp/interface.c               | 36 ++++++++++-------------------------
 drivers/s390/block/dasd_proc.c        |  5 +++--
 drivers/video/backlight/lcd.c         |  4 ++--
 drivers/video/display/display-sysfs.c |  2 +-
 drivers/video/output.c                |  2 +-
 fs/cachefiles/daemon.c                |  4 ++--
 fs/ext4/super.c                       |  7 ++-----
 kernel/params.c                       |  8 +++-----
 lib/argv_split.c                      | 13 +++----------
 lib/dynamic_debug.c                   |  4 ++--
 lib/vsprintf.c                        | 15 ++++-----------
 net/irda/irnet/irnet.h                |  1 +
 net/irda/irnet/irnet_ppp.c            |  8 +++-----
 net/netfilter/xt_recent.c             |  3 +--
 sound/pci/hda/hda_hwdep.c             |  7 +++----
 24 files changed, 66 insertions(+), 115 deletions(-)

(limited to 'drivers/s390/block')

diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 071c81f179e..0168472b2fd 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -18,6 +18,7 @@
 #include <linux/errno.h>
 #include <linux/slab.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/sysctl.h>
 #include <asm/uaccess.h>
 #include <linux/module.h>
@@ -1178,7 +1179,7 @@ debug_get_uint(char *buf)
 {
 	int rc;
 
-	for(; isspace(*buf); buf++);
+	buf = skip_spaces(buf);
 	rc = simple_strtoul(buf, &buf, 10);
 	if(*buf){
 		rc = -EINVAL;
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index f0fa47f10e6..51069245b79 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -6,6 +6,7 @@
 
 #include <linux/console.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/interrupt.h>
 #include <linux/list.h>
 #include <linux/mm.h>
@@ -131,7 +132,7 @@ void mconsole_proc(struct mc_request *req)
 	char *ptr = req->request.data, *buf;
 
 	ptr += strlen("proc");
-	while (isspace(*ptr)) ptr++;
+	ptr = skip_spaces(ptr);
 
 	proc = get_fs_type("proc");
 	if (proc == NULL) {
@@ -212,8 +213,7 @@ void mconsole_proc(struct mc_request *req)
 	char *ptr = req->request.data;
 
 	ptr += strlen("proc");
-	while (isspace(*ptr))
-		ptr++;
+	ptr = skip_spaces(ptr);
 	snprintf(path, sizeof(path), "/proc/%s", ptr);
 
 	fd = sys_open(path, 0, 0);
@@ -560,8 +560,7 @@ void mconsole_config(struct mc_request *req)
 	int err;
 
 	ptr += strlen("config");
-	while (isspace(*ptr))
-		ptr++;
+	ptr = skip_spaces(ptr);
 	dev = mconsole_find_dev(ptr);
 	if (dev == NULL) {
 		mconsole_reply(req, "Bad configuration option", 1, 0);
@@ -588,7 +587,7 @@ void mconsole_remove(struct mc_request *req)
 	int err, start, end, n;
 
 	ptr += strlen("remove");
-	while (isspace(*ptr)) ptr++;
+	ptr = skip_spaces(ptr);
 	dev = mconsole_find_dev(ptr);
 	if (dev == NULL) {
 		mconsole_reply(req, "Bad remove option", 1, 0);
@@ -712,7 +711,7 @@ void mconsole_sysrq(struct mc_request *req)
 	char *ptr = req->request.data;
 
 	ptr += strlen("sysrq");
-	while (isspace(*ptr)) ptr++;
+	ptr = skip_spaces(ptr);
 
 	/*
 	 * With 'b', the system will shut down without a chance to reply,
@@ -757,8 +756,7 @@ void mconsole_stack(struct mc_request *req)
 	 */
 
 	ptr += strlen("stack");
-	while (isspace(*ptr))
-		ptr++;
+	ptr = skip_spaces(ptr);
 
 	/*
 	 * Should really check for multiple pids or reject bad args here
diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index 3c1b12d461d..e006e56f699 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -4,6 +4,7 @@
 #include <linux/proc_fs.h>
 #include <linux/module.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/init.h>
 
 #define LINE_SIZE 80
@@ -133,8 +134,7 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
 		return -EINVAL;
 
 	base = simple_strtoull(line + 5, &ptr, 0);
-	while (isspace(*ptr))
-		ptr++;
+	ptr = skip_spaces(ptr);
 
 	if (strncmp(ptr, "size=", 5))
 		return -EINVAL;
@@ -142,14 +142,11 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
 	size = simple_strtoull(ptr + 5, &ptr, 0);
 	if ((base & 0xfff) || (size & 0xfff))
 		return -EINVAL;
-	while (isspace(*ptr))
-		ptr++;
+	ptr = skip_spaces(ptr);
 
 	if (strncmp(ptr, "type=", 5))
 		return -EINVAL;
-	ptr += 5;
-	while (isspace(*ptr))
-		ptr++;
+	ptr = skip_spaces(ptr + 5);
 
 	for (i = 0; i < MTRR_NUM_TYPES; ++i) {
 		if (strcmp(ptr, mtrr_strings[i]))
diff --git a/drivers/leds/led-class.c b/drivers/leds/led-class.c
index f2cc13d7681..782f95822ea 100644
--- a/drivers/leds/led-class.c
+++ b/drivers/leds/led-class.c
@@ -50,7 +50,7 @@ static ssize_t led_brightness_store(struct device *dev,
 	unsigned long state = simple_strtoul(buf, &after, 10);
 	size_t count = after - buf;
 
-	if (*after && isspace(*after))
+	if (isspace(*after))
 		count++;
 
 	if (count == size) {
diff --git a/drivers/leds/ledtrig-timer.c b/drivers/leds/ledtrig-timer.c
index 3b83406de75..38b3378be44 100644
--- a/drivers/leds/ledtrig-timer.c
+++ b/drivers/leds/ledtrig-timer.c
@@ -83,7 +83,7 @@ static ssize_t led_delay_on_store(struct device *dev,
 	unsigned long state = simple_strtoul(buf, &after, 10);
 	size_t count = after - buf;
 
-	if (*after && isspace(*after))
+	if (isspace(*after))
 		count++;
 
 	if (count == size) {
@@ -127,7 +127,7 @@ static ssize_t led_delay_off_store(struct device *dev,
 	unsigned long state = simple_strtoul(buf, &after, 10);
 	size_t count = after - buf;
 
-	if (*after && isspace(*after))
+	if (isspace(*after))
 		count++;
 
 	if (count == size) {
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 1a6cb3c7822..91976e8fae5 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -12,6 +12,7 @@
 #include <linux/blkdev.h>
 #include <linux/namei.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/mutex.h>
@@ -600,11 +601,8 @@ int dm_split_args(int *argc, char ***argvp, char *input)
 		return -ENOMEM;
 
 	while (1) {
-		start = end;
-
 		/* Skip whitespace */
-		while (*start && isspace(*start))
-			start++;
+		start = skip_spaces(end);
 
 		if (!*start)
 			break;	/* success, we hit the end */
diff --git a/drivers/md/md.c b/drivers/md/md.c
index e1f3c1715cc..6f9148623a4 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -39,6 +39,7 @@
 #include <linux/buffer_head.h> /* for invalidate_bdev */
 #include <linux/poll.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/hdreg.h>
 #include <linux/proc_fs.h>
 #include <linux/random.h>
@@ -3439,8 +3440,7 @@ bitmap_store(mddev_t *mddev, const char *buf, size_t len)
 		}
 		if (*end && !isspace(*end)) break;
 		bitmap_dirty_bits(mddev->bitmap, chunk, end_chunk);
-		buf = end;
-		while (isspace(*buf)) buf++;
+		buf = skip_spaces(end);
 	}
 	bitmap_unplug(mddev->bitmap); /* flush the bits to disk */
 out:
diff --git a/drivers/parisc/pdc_stable.c b/drivers/parisc/pdc_stable.c
index 13a64bc081b..0bc5d474b16 100644
--- a/drivers/parisc/pdc_stable.c
+++ b/drivers/parisc/pdc_stable.c
@@ -779,12 +779,9 @@ static ssize_t pdcs_auto_write(struct kobject *kobj,
 	read_unlock(&pathentry->rw_lock);
 	
 	DPRINTK("%s: flags before: 0x%X\n", __func__, flags);
-			
-	temp = in;
-	
-	while (*temp && isspace(*temp))
-		temp++;
-	
+
+	temp = skip_spaces(in);
+
 	c = *temp++ - '0';
 	if ((c != 0) && (c != 1))
 		goto parse_error;
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 0ed84806f8a..cf61d6a8ef6 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -1006,11 +1006,8 @@ static int parse_strtoul(const char *buf,
 {
 	char *endp;
 
-	while (*buf && isspace(*buf))
-		buf++;
-	*value = simple_strtoul(buf, &endp, 0);
-	while (*endp && isspace(*endp))
-		endp++;
+	*value = simple_strtoul(skip_spaces(buf), &endp, 0);
+	endp = skip_spaces(endp);
 	if (*endp || *value > max)
 		return -EINVAL;
 
diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c
index c3f1c8e9d25..68b0c04987e 100644
--- a/drivers/pnp/interface.c
+++ b/drivers/pnp/interface.c
@@ -310,8 +310,7 @@ static ssize_t pnp_set_current_resources(struct device *dmdev,
 		goto done;
 	}
 
-	while (isspace(*buf))
-		++buf;
+	buf = skip_spaces(buf);
 	if (!strnicmp(buf, "disable", 7)) {
 		retval = pnp_disable_dev(dev);
 		goto done;
@@ -353,19 +352,13 @@ static ssize_t pnp_set_current_resources(struct device *dmdev,
 		pnp_init_resources(dev);
 		mutex_lock(&pnp_res_mutex);
 		while (1) {
-			while (isspace(*buf))
-				++buf;
+			buf = skip_spaces(buf);
 			if (!strnicmp(buf, "io", 2)) {
-				buf += 2;
-				while (isspace(*buf))
-					++buf;
+				buf = skip_spaces(buf + 2);
 				start = simple_strtoul(buf, &buf, 0);
-				while (isspace(*buf))
-					++buf;
+				buf = skip_spaces(buf);
 				if (*buf == '-') {
-					buf += 1;
-					while (isspace(*buf))
-						++buf;
+					buf = skip_spaces(buf + 1);
 					end = simple_strtoul(buf, &buf, 0);
 				} else
 					end = start;
@@ -373,16 +366,11 @@ static ssize_t pnp_set_current_resources(struct device *dmdev,
 				continue;
 			}
 			if (!strnicmp(buf, "mem", 3)) {
-				buf += 3;
-				while (isspace(*buf))
-					++buf;
+				buf = skip_spaces(buf + 3);
 				start = simple_strtoul(buf, &buf, 0);
-				while (isspace(*buf))
-					++buf;
+				buf = skip_spaces(buf);
 				if (*buf == '-') {
-					buf += 1;
-					while (isspace(*buf))
-						++buf;
+					buf = skip_spaces(buf + 1);
 					end = simple_strtoul(buf, &buf, 0);
 				} else
 					end = start;
@@ -390,17 +378,13 @@ static ssize_t pnp_set_current_resources(struct device *dmdev,
 				continue;
 			}
 			if (!strnicmp(buf, "irq", 3)) {
-				buf += 3;
-				while (isspace(*buf))
-					++buf;
+				buf = skip_spaces(buf + 3);
 				start = simple_strtoul(buf, &buf, 0);
 				pnp_add_irq_resource(dev, start, 0);
 				continue;
 			}
 			if (!strnicmp(buf, "dma", 3)) {
-				buf += 3;
-				while (isspace(*buf))
-					++buf;
+				buf = skip_spaces(buf + 3);
 				start = simple_strtoul(buf, &buf, 0);
 				pnp_add_dma_resource(dev, start, 0);
 				continue;
diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c
index 5f23eca8280..6315fbd8e68 100644
--- a/drivers/s390/block/dasd_proc.c
+++ b/drivers/s390/block/dasd_proc.c
@@ -14,6 +14,7 @@
 #define KMSG_COMPONENT "dasd"
 
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/seq_file.h>
 #include <linux/vmalloc.h>
 #include <linux/proc_fs.h>
@@ -272,10 +273,10 @@ dasd_statistics_write(struct file *file, const char __user *user_buf,
 	DBF_EVENT(DBF_DEBUG, "/proc/dasd/statictics: '%s'\n", buffer);
 
 	/* check for valid verbs */
-	for (str = buffer; isspace(*str); str++);
+	str = skip_spaces(buffer);
 	if (strncmp(str, "set", 3) == 0 && isspace(str[3])) {
 		/* 'set xxx' was given */
-		for (str = str + 4; isspace(*str); str++);
+		str = skip_spaces(str + 4);
 		if (strcmp(str, "on") == 0) {
 			/* switch on statistics profiling */
 			dasd_profile_level = DASD_PROFILE_ON;
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
index a482dd7b031..9b3be74cee5 100644
--- a/drivers/video/backlight/lcd.c
+++ b/drivers/video/backlight/lcd.c
@@ -101,7 +101,7 @@ static ssize_t lcd_store_power(struct device *dev,
 	int power = simple_strtoul(buf, &endp, 0);
 	size_t size = endp - buf;
 
-	if (*endp && isspace(*endp))
+	if (isspace(*endp))
 		size++;
 	if (size != count)
 		return -EINVAL;
@@ -140,7 +140,7 @@ static ssize_t lcd_store_contrast(struct device *dev,
 	int contrast = simple_strtoul(buf, &endp, 0);
 	size_t size = endp - buf;
 
-	if (*endp && isspace(*endp))
+	if (isspace(*endp))
 		size++;
 	if (size != count)
 		return -EINVAL;
diff --git a/drivers/video/display/display-sysfs.c b/drivers/video/display/display-sysfs.c
index 4830b1bf51e..80abbf323b9 100644
--- a/drivers/video/display/display-sysfs.c
+++ b/drivers/video/display/display-sysfs.c
@@ -67,7 +67,7 @@ static ssize_t display_store_contrast(struct device *dev,
 	contrast = simple_strtoul(buf, &endp, 0);
 	size = endp - buf;
 
-	if (*endp && isspace(*endp))
+	if (isspace(*endp))
 		size++;
 
 	if (size != count)
diff --git a/drivers/video/output.c b/drivers/video/output.c
index 5e6439ae739..5137aa016b8 100644
--- a/drivers/video/output.c
+++ b/drivers/video/output.c
@@ -50,7 +50,7 @@ static ssize_t video_output_store_state(struct device *dev,
 	int request_state = simple_strtoul(buf,&endp,0);
 	size_t size = endp - buf;
 
-	if (*endp && isspace(*endp))
+	if (isspace(*endp))
 		size++;
 	if (size != count)
 		return -EINVAL;
diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
index 4618516dd99..c2413561ea7 100644
--- a/fs/cachefiles/daemon.c
+++ b/fs/cachefiles/daemon.c
@@ -21,6 +21,7 @@
 #include <linux/mount.h>
 #include <linux/statfs.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/fs_struct.h>
 #include "internal.h"
 
@@ -257,8 +258,7 @@ static ssize_t cachefiles_daemon_write(struct file *file,
 		if (args == data)
 			goto error;
 		*args = '\0';
-		for (args++; isspace(*args); args++)
-			continue;
+		args = skip_spaces(++args);
 	}
 
 	/* run the appropriate command handler */
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 768c111a77e..827bde1f259 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2137,11 +2137,8 @@ static int parse_strtoul(const char *buf,
 {
 	char *endp;
 
-	while (*buf && isspace(*buf))
-		buf++;
-	*value = simple_strtoul(buf, &endp, 0);
-	while (*endp && isspace(*endp))
-		endp++;
+	*value = simple_strtoul(skip_spaces(buf), &endp, 0);
+	endp = skip_spaces(endp);
 	if (*endp || *value > max)
 		return -EINVAL;
 
diff --git a/kernel/params.c b/kernel/params.c
index d656c276508..cf1b6918312 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -24,6 +24,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 
 #if 0
 #define DEBUGP printk
@@ -122,9 +123,7 @@ static char *next_arg(char *args, char **param, char **val)
 		next = args + i;
 
 	/* Chew up trailing spaces. */
-	while (isspace(*next))
-		next++;
-	return next;
+	return skip_spaces(next);
 }
 
 /* Args looks like "foo=bar,bar2 baz=fuz wiz". */
@@ -139,8 +138,7 @@ int parse_args(const char *name,
 	DEBUGP("Parsing ARGS: %s\n", args);
 
 	/* Chew leading spaces */
-	while (isspace(*args))
-		args++;
+	args = skip_spaces(args);
 
 	while (*args) {
 		int ret;
diff --git a/lib/argv_split.c b/lib/argv_split.c
index 5205a8dae5b..4b1b083f219 100644
--- a/lib/argv_split.c
+++ b/lib/argv_split.c
@@ -4,17 +4,10 @@
 
 #include <linux/kernel.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/slab.h>
 #include <linux/module.h>
 
-static const char *skip_sep(const char *cp)
-{
-	while (*cp && isspace(*cp))
-		cp++;
-
-	return cp;
-}
-
 static const char *skip_arg(const char *cp)
 {
 	while (*cp && !isspace(*cp))
@@ -28,7 +21,7 @@ static int count_argc(const char *str)
 	int count = 0;
 
 	while (*str) {
-		str = skip_sep(str);
+		str = skip_spaces(str);
 		if (*str) {
 			count++;
 			str = skip_arg(str);
@@ -82,7 +75,7 @@ char **argv_split(gfp_t gfp, const char *str, int *argcp)
 	argvp = argv;
 
 	while (*str) {
-		str = skip_sep(str);
+		str = skip_spaces(str);
 
 		if (*str) {
 			const char *p = str;
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index e22c148e4b7..f9350291598 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -21,6 +21,7 @@
 #include <linux/list.h>
 #include <linux/sysctl.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/uaccess.h>
 #include <linux/dynamic_debug.h>
 #include <linux/debugfs.h>
@@ -209,8 +210,7 @@ static int ddebug_tokenize(char *buf, char *words[], int maxwords)
 		char *end;
 
 		/* Skip leading whitespace */
-		while (*buf && isspace(*buf))
-			buf++;
+		buf = skip_spaces(buf);
 		if (!*buf)
 			break;	/* oh, it was trailing whitespace */
 
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index c50733a690f..7857d4dd62d 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1766,13 +1766,6 @@ EXPORT_SYMBOL_GPL(bprintf);
 
 #endif /* CONFIG_BINARY_PRINTF */
 
-static noinline char *skip_space(const char *str)
-{
-	while (isspace(*str))
-		++str;
-	return (char *)str;
-}
-
 /**
  * vsscanf - Unformat a buffer into a list of arguments
  * @buf:	input buffer
@@ -1794,8 +1787,8 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
 		 * white space, including none, in the input.
 		 */
 		if (isspace(*fmt)) {
-			fmt = skip_space(fmt);
-			str = skip_space(str);
+			fmt = skip_spaces(++fmt);
+			str = skip_spaces(str);
 		}
 
 		/* anything that is not a conversion must match exactly */
@@ -1865,7 +1858,7 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
 			if (field_width == -1)
 				field_width = INT_MAX;
 			/* first, skip leading white space in buffer */
-			str = skip_space(str);
+			str = skip_spaces(str);
 
 			/* now copy until next white space */
 			while (*str && !isspace(*str) && field_width--)
@@ -1907,7 +1900,7 @@ int vsscanf(const char *buf, const char *fmt, va_list args)
 		/* have some sort of integer conversion.
 		 * first, skip white space in buffer.
 		 */
-		str = skip_space(str);
+		str = skip_spaces(str);
 
 		digit = *str;
 		if (is_sign && digit == '-')
diff --git a/net/irda/irnet/irnet.h b/net/irda/irnet/irnet.h
index b001c361ad3..4300df35d37 100644
--- a/net/irda/irnet/irnet.h
+++ b/net/irda/irnet/irnet.h
@@ -249,6 +249,7 @@
 #include <linux/poll.h>
 #include <linux/capability.h>
 #include <linux/ctype.h>	/* isspace() */
+#include <linux/string.h>	/* skip_spaces() */
 #include <asm/uaccess.h>
 #include <linux/init.h>
 
diff --git a/net/irda/irnet/irnet_ppp.c b/net/irda/irnet/irnet_ppp.c
index 7dea882dbb7..156020d138b 100644
--- a/net/irda/irnet/irnet_ppp.c
+++ b/net/irda/irnet/irnet_ppp.c
@@ -76,9 +76,8 @@ irnet_ctrl_write(irnet_socket *	ap,
       /* Look at the next command */
       start = next;
 
-      /* Scrap whitespaces before the command */
-      while(isspace(*start))
-	start++;
+	/* Scrap whitespaces before the command */
+	start = skip_spaces(start);
 
       /* ',' is our command separator */
       next = strchr(start, ',');
@@ -133,8 +132,7 @@ irnet_ctrl_write(irnet_socket *	ap,
 	      char *	endp;
 
 	      /* Scrap whitespaces before the command */
-	      while(isspace(*begp))
-		begp++;
+	      begp = skip_spaces(begp);
 
 	      /* Convert argument to a number (last arg is the base) */
 	      addr = simple_strtoul(begp, &endp, 16);
diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c
index eb0ceb84652..fc70a49c0af 100644
--- a/net/netfilter/xt_recent.c
+++ b/net/netfilter/xt_recent.c
@@ -482,8 +482,7 @@ static ssize_t recent_old_proc_write(struct file *file,
 	if (copy_from_user(buf, input, size))
 		return -EFAULT;
 
-	while (isspace(*c))
-		c++;
+	c = skip_spaces(c);
 
 	if (size - (c - buf) < 5)
 		return c - buf;
diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c
index d24328661c6..40ccb419b6e 100644
--- a/sound/pci/hda/hda_hwdep.c
+++ b/sound/pci/hda/hda_hwdep.c
@@ -24,6 +24,7 @@
 #include <linux/compat.h>
 #include <linux/mutex.h>
 #include <linux/ctype.h>
+#include <linux/string.h>
 #include <linux/firmware.h>
 #include <sound/core.h>
 #include "hda_codec.h"
@@ -428,8 +429,7 @@ static int parse_hints(struct hda_codec *codec, const char *buf)
 	char *key, *val;
 	struct hda_hint *hint;
 
-	while (isspace(*buf))
-		buf++;
+	buf = skip_spaces(buf);
 	if (!*buf || *buf == '#' || *buf == '\n')
 		return 0;
 	if (*buf == '=')
@@ -444,8 +444,7 @@ static int parse_hints(struct hda_codec *codec, const char *buf)
 		return -EINVAL;
 	}
 	*val++ = 0;
-	while (isspace(*val))
-		val++;
+	val = skip_spaces(val);
 	remove_trail_spaces(key);
 	remove_trail_spaces(val);
 	hint = get_hint(codec, key);
-- 
cgit v1.2.3-70-g09d2


From ea058544542a60e92fd023d93aa901709be18daa Mon Sep 17 00:00:00 2001
From: Stefan Haberland <stefan.haberland@de.ibm.com>
Date: Fri, 18 Dec 2009 17:43:16 +0100
Subject: [S390] dasd: move dasd-diag kmsg to dasd

The DIAG discipline does not have a own driver name. It shows up as
dasd-eckd or dasd-fba. So messages for dasd-diag are moved to the
generic dasd part.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/block/dasd_diag.c | 42 ++++++++++++++++++++++--------------------
 1 file changed, 22 insertions(+), 20 deletions(-)

(limited to 'drivers/s390/block')

diff --git a/drivers/s390/block/dasd_diag.c b/drivers/s390/block/dasd_diag.c
index f64d0db881b..6e14863f5c7 100644
--- a/drivers/s390/block/dasd_diag.c
+++ b/drivers/s390/block/dasd_diag.c
@@ -8,7 +8,7 @@
  *
  */
 
-#define KMSG_COMPONENT "dasd-diag"
+#define KMSG_COMPONENT "dasd"
 
 #include <linux/stddef.h>
 #include <linux/kernel.h>
@@ -146,16 +146,16 @@ dasd_diag_erp(struct dasd_device *device)
 	rc = mdsk_init_io(device, device->block->bp_block, 0, NULL);
 	if (rc == 4) {
 		if (!(device->features & DASD_FEATURE_READONLY)) {
-			dev_warn(&device->cdev->dev,
-				 "The access mode of a DIAG device changed"
-				 " to read-only");
+			pr_warning("%s: The access mode of a DIAG device "
+				   "changed to read-only\n",
+				   dev_name(&device->cdev->dev));
 			device->features |= DASD_FEATURE_READONLY;
 		}
 		rc = 0;
 	}
 	if (rc)
-		dev_warn(&device->cdev->dev, "DIAG ERP failed with "
-			    "rc=%d\n", rc);
+		pr_warning("%s: DIAG ERP failed with "
+			    "rc=%d\n", dev_name(&device->cdev->dev), rc);
 }
 
 /* Start a given request at the device. Return zero on success, non-zero
@@ -371,8 +371,9 @@ dasd_diag_check_device(struct dasd_device *device)
 		private->pt_block = 2;
 		break;
 	default:
-		dev_warn(&device->cdev->dev, "Device type %d is not supported "
-			    "in DIAG mode\n", private->rdc_data.vdev_class);
+		pr_warning("%s: Device type %d is not supported "
+			   "in DIAG mode\n", dev_name(&device->cdev->dev),
+			   private->rdc_data.vdev_class);
 		rc = -EOPNOTSUPP;
 		goto out;
 	}
@@ -413,8 +414,8 @@ dasd_diag_check_device(struct dasd_device *device)
 		private->iob.flaga = DASD_DIAG_FLAGA_DEFAULT;
 		rc = dia250(&private->iob, RW_BIO);
 		if (rc == 3) {
-			dev_warn(&device->cdev->dev,
-				"A 64-bit DIAG call failed\n");
+			pr_warning("%s: A 64-bit DIAG call failed\n",
+				   dev_name(&device->cdev->dev));
 			rc = -EOPNOTSUPP;
 			goto out_label;
 		}
@@ -423,8 +424,9 @@ dasd_diag_check_device(struct dasd_device *device)
 			break;
 	}
 	if (bsize > PAGE_SIZE) {
-		dev_warn(&device->cdev->dev, "Accessing the DASD failed because"
-			 " of an incorrect format (rc=%d)\n", rc);
+		pr_warning("%s: Accessing the DASD failed because of an "
+			   "incorrect format (rc=%d)\n",
+			   dev_name(&device->cdev->dev), rc);
 		rc = -EIO;
 		goto out_label;
 	}
@@ -442,18 +444,18 @@ dasd_diag_check_device(struct dasd_device *device)
 		block->s2b_shift++;
 	rc = mdsk_init_io(device, block->bp_block, 0, NULL);
 	if (rc && (rc != 4)) {
-		dev_warn(&device->cdev->dev, "DIAG initialization "
-			"failed with rc=%d\n", rc);
+		pr_warning("%s: DIAG initialization failed with rc=%d\n",
+			   dev_name(&device->cdev->dev), rc);
 		rc = -EIO;
 	} else {
 		if (rc == 4)
 			device->features |= DASD_FEATURE_READONLY;
-		dev_info(&device->cdev->dev,
-			 "New DASD with %ld byte/block, total size %ld KB%s\n",
-			 (unsigned long) block->bp_block,
-			 (unsigned long) (block->blocks <<
-					  block->s2b_shift) >> 1,
-			 (rc == 4) ? ", read-only device" : "");
+		pr_info("%s: New DASD with %ld byte/block, total size %ld "
+			"KB%s\n", dev_name(&device->cdev->dev),
+			(unsigned long) block->bp_block,
+			(unsigned long) (block->blocks <<
+					 block->s2b_shift) >> 1,
+			(rc == 4) ? ", read-only device" : "");
 		rc = 0;
 	}
 out_label:
-- 
cgit v1.2.3-70-g09d2


From 6d53cfe590c17c28ebae2c869bb7a5ab9554b4da Mon Sep 17 00:00:00 2001
From: Roel Kluin <roel.kluin@gmail.com>
Date: Fri, 18 Dec 2009 17:43:17 +0100
Subject: [S390] dasd: PTR_ERR return of wrong pointer in

Return the PTR_ERR of the correct pointer.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/block/dasd_alias.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'drivers/s390/block')

diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index fd1231738ef..148b1dd2407 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -218,7 +218,7 @@ int dasd_alias_make_device_known_to_lcu(struct dasd_device *device)
 		spin_unlock_irqrestore(&aliastree.lock, flags);
 		newlcu = _allocate_lcu(uid);
 		if (IS_ERR(newlcu))
-			return PTR_ERR(lcu);
+			return PTR_ERR(newlcu);
 		spin_lock_irqsave(&aliastree.lock, flags);
 		lcu = _find_lcu(server, uid);
 		if (!lcu) {
-- 
cgit v1.2.3-70-g09d2


From 880348653ec2eda81550a8aa37c2eb625922f695 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 13 Jan 2010 20:44:29 +0100
Subject: [S390] dasd: add missing compat ptr conversion

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/block/dasd_ioctl.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

(limited to 'drivers/s390/block')

diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index 478bcdb90b6..fc7b30b4a25 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -17,7 +17,7 @@
 #include <linux/fs.h>
 #include <linux/blkpg.h>
 #include <linux/smp_lock.h>
-
+#include <asm/compat.h>
 #include <asm/ccwdev.h>
 #include <asm/cmb.h>
 #include <asm/uaccess.h>
@@ -358,9 +358,8 @@ dasd_ioctl_set_ro(struct block_device *bdev, void __user *argp)
 }
 
 static int dasd_ioctl_readall_cmb(struct dasd_block *block, unsigned int cmd,
-		unsigned long arg)
+				  struct cmbdata __user *argp)
 {
-	struct cmbdata __user *argp = (void __user *) arg;
 	size_t size = _IOC_SIZE(cmd);
 	struct cmbdata data;
 	int ret;
@@ -376,7 +375,12 @@ dasd_do_ioctl(struct block_device *bdev, fmode_t mode,
 	      unsigned int cmd, unsigned long arg)
 {
 	struct dasd_block *block = bdev->bd_disk->private_data;
-	void __user *argp = (void __user *)arg;
+	void __user *argp;
+
+	if (is_compat_task())
+		argp = compat_ptr(arg);
+	else
+		argp = (void __user *)arg;
 
 	if (!block)
                 return -ENODEV;
@@ -414,7 +418,7 @@ dasd_do_ioctl(struct block_device *bdev, fmode_t mode,
 	case BIODASDCMFDISABLE:
 		return disable_cmf(block->base->cdev);
 	case BIODASDREADALLCMB:
-		return dasd_ioctl_readall_cmb(block, cmd, arg);
+		return dasd_ioctl_readall_cmb(block, cmd, argp);
 	default:
 		/* if the discipline has an ioctl method try it. */
 		if (block->base->discipline->ioctl) {
-- 
cgit v1.2.3-70-g09d2


From f8b068593db4a4184c8963fcd5a7f34584fde8ad Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 13 Jan 2010 20:44:40 +0100
Subject: [S390] dasd: add proper compat pointer conversion for symmetrix ioctl

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/block/dasd_eckd.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

(limited to 'drivers/s390/block')

diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 5819dc02a14..1c500c46222 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -23,6 +23,7 @@
 #include <asm/debug.h>
 #include <asm/idals.h>
 #include <asm/ebcdic.h>
+#include <asm/compat.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
 #include <asm/cio.h>
@@ -2844,13 +2845,16 @@ static int dasd_symm_io(struct dasd_device *device, void __user *argp)
 	rc = -EFAULT;
 	if (copy_from_user(&usrparm, argp, sizeof(usrparm)))
 		goto out;
-#ifndef CONFIG_64BIT
-	/* Make sure pointers are sane even on 31 bit. */
-	if ((usrparm.psf_data >> 32) != 0 || (usrparm.rssd_result >> 32) != 0) {
+	if (is_compat_task() || sizeof(long) == 4) {
+		/* Make sure pointers are sane even on 31 bit. */
 		rc = -EINVAL;
-		goto out;
+		if ((usrparm.psf_data >> 32) != 0)
+			goto out;
+		if ((usrparm.rssd_result >> 32) != 0)
+			goto out;
+		usrparm.psf_data &= 0x7fffffffULL;
+		usrparm.rssd_result &= 0x7fffffffULL;
 	}
-#endif
 	/* alloc I/O data area */
 	psf_data = kzalloc(usrparm.psf_data_len, GFP_KERNEL | GFP_DMA);
 	rssd_result = kzalloc(usrparm.rssd_result_len, GFP_KERNEL | GFP_DMA);
-- 
cgit v1.2.3-70-g09d2