78 files changed, 518 insertions, 631 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index 962232d62781..3e25ba82e0fa 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5637,7 +5637,7 @@ M:	Ohad Ben-Cohen <ohad@wizery.com>
 S:      Maintained
 F:      drivers/remoteproc/
 F:      Documentation/remoteproc.txt
-F:      include/linux/remoteproc.txt
+F:      include/linux/remoteproc.h
 
 RFKILL
 M:      Johannes Berg <johannes@sipsolutions.net>
@@ -6287,6 +6287,15 @@ F:	drivers/tty/serial/sunsu.c
 F:      drivers/tty/serial/sunzilog.c
 F:      drivers/tty/serial/sunzilog.h
 
+SPARSE CHECKER
+M:      "Christopher Li" <sparse@chrisli.org>
+L:      linux-sparse@vger.kernel.org
+W:      https://sparse.wiki.kernel.org/
+T:      git git://git.kernel.org/pub/scm/devel/sparse/sparse.git
+T:      git git://git.kernel.org/pub/scm/devel/sparse/chrisl/sparse.git
+S:      Maintained
+F:      include/linux/compiler.h
+
 SPEAR PLATFORM SUPPORT
 M:      Viresh Kumar <viresh.kumar@st.com>
 L:      spear-devel@list.st.com
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index 6f7feb5db271..35f2ef44de12 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -120,12 +120,13 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act,
  */
 SYSCALL_DEFINE1(sigsuspend, old_sigset_t, mask)
 {
-        mask &= _BLOCKABLE;
-        spin_lock_irq(&current->sighand->siglock);
+        sigset_t blocked;
+
         current->saved_sigmask = current->blocked;
-        siginitset(&current->blocked, mask);
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+
+        mask &= _BLOCKABLE;
+        siginitset(&blocked, mask);
+        set_current_blocked(&blocked);
 
         current->state = TASK_INTERRUPTIBLE;
         schedule();
@@ -238,10 +239,7 @@ do_sigreturn(struct sigcontext __user *sc, struct pt_regs *regs,
                 goto give_sigsegv;
 
         sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
 
         if (restore_sigcontext(sc, regs, sw))
                 goto give_sigsegv;
@@ -276,10 +274,7 @@ do_rt_sigreturn(struct rt_sigframe __user *frame, struct pt_regs *regs,
                 goto give_sigsegv;
 
         sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
 
         if (restore_sigcontext(&frame->uc.uc_mcontext, regs, sw))
                 goto give_sigsegv;
@@ -501,14 +496,8 @@ handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info,
         else
                 ret = setup_frame(sig, ka, oldset, regs, sw);
 
-        if (ret == 0) {
-                spin_lock_irq(&current->sighand->siglock);
-                sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
-                if (!(ka->sa.sa_flags & SA_NODEFER)) 
-                        sigaddset(&current->blocked,sig);
-                recalc_sigpending();
-                spin_unlock_irq(&current->sighand->siglock);
-        }
+        if (ret == 0)
+                block_sigmask(ka, sig);
 
         return ret;
 }
diff --git a/arch/arm/mach-msm/smd_debug.c b/arch/arm/mach-msm/smd_debug.c
index 0c56a5aaf588..c56df9e932ae 100644
--- a/arch/arm/mach-msm/smd_debug.c
+++ b/arch/arm/mach-msm/smd_debug.c
@@ -203,15 +203,9 @@ static ssize_t debug_read(struct file *file, char __user *buf,
         return simple_read_from_buffer(buf, count, ppos, debug_buffer, bsize);
 }
 
-static int debug_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static const struct file_operations debug_ops = {
         .read = debug_read,
-        .open = debug_open,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
index 304f675826e9..3b5a05099989 100644
--- a/arch/c6x/kernel/signal.c
+++ b/arch/c6x/kernel/signal.c
@@ -85,10 +85,7 @@ asmlinkage int do_rt_sigreturn(struct pt_regs *regs)
                 goto badframe;
 
         sigdelsetmask(&set, ~_BLOCKABLE);
-        spin_lock_irq(&current->sighand->siglock);
-        current->blocked = set;
-        recalc_sigpending();
-        spin_unlock_irq(&current->sighand->siglock);
+        set_current_blocked(&set);
 
         if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
                 goto badframe;
@@ -279,15 +276,8 @@ static int handle_signal(int sig,
 
         /* Set up the stack frame */
         ret = setup_rt_frame(sig, ka, info, oldset, regs);
-        if (ret == 0) {
-                spin_lock_irq(&current->sighand->siglock);
-                sigorsets(&current->blocked, &current->blocked,
-                          &ka->sa.sa_mask);
-                if (!(ka->sa.sa_flags & SA_NODEFER))
-                        sigaddset(&current->blocked, sig);
-                recalc_sigpending();
-                spin_unlock_irq(&current->sighand->siglock);
-        }
+        if (ret == 0)
+                block_sigmask(ka, sig);
 
         return ret;
 }
diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c
index 90fcf62854bb..1d5d31ea686b 100644
--- a/arch/x86/kernel/kdebugfs.c
+++ b/arch/x86/kernel/kdebugfs.c
@@ -68,16 +68,9 @@ static ssize_t setup_data_read(struct file *file, char __user *user_buf,
         return count;
 }
 
-static int setup_data_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-
-        return 0;
-}
-
 static const struct file_operations fops_setup_data = {
         .read           = setup_data_read,
-        .open           = setup_data_open,
+        .open           = simple_open,
         .llseek         = default_llseek,
 };
 
diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c
index b258cab9061c..7586544fddb4 100644
--- a/drivers/acpi/ec_sys.c
+++ b/drivers/acpi/ec_sys.c
@@ -27,12 +27,6 @@ MODULE_PARM_DESC(write_support, "Dangerous, reboot and removal of battery may "
 
 static struct dentry *acpi_ec_debugfs_dir;
 
-static int acpi_ec_open_io(struct inode *i, struct file *f)
-{
-        f->private_data = i->i_private;
-        return 0;
-}
-
 static ssize_t acpi_ec_read_io(struct file *f, char __user *buf,
                                size_t count, loff_t *off)
 {
@@ -95,7 +89,7 @@ static ssize_t acpi_ec_write_io(struct file *f, const char __user *buf,
 
 static const struct file_operations acpi_ec_io_ops = {
         .owner = THIS_MODULE,
-        .open  = acpi_ec_open_io,
+        .open  = simple_open,
         .read  = acpi_ec_read_io,
         .write = acpi_ec_write_io,
         .llseek = default_llseek,
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 58517a5dac13..251eb70f83e7 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -27,12 +27,6 @@ static size_t regmap_calc_reg_len(int max_val, char *buf, size_t buf_size)
         return strlen(buf);
 }
 
-static int regmap_open_file(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t regmap_name_read_file(struct file *file,
                                      char __user *user_buf, size_t count,
                                      loff_t *ppos)
@@ -57,7 +51,7 @@ static ssize_t regmap_name_read_file(struct file *file,
 }
 
 static const struct file_operations regmap_name_fops = {
-        .open = regmap_open_file,
+        .open = simple_open,
         .read = regmap_name_read_file,
         .llseek = default_llseek,
 };
@@ -174,7 +168,7 @@ static ssize_t regmap_map_write_file(struct file *file,
 #endif
 
 static const struct file_operations regmap_map_fops = {
-        .open = regmap_open_file,
+        .open = simple_open,
         .read = regmap_map_read_file,
         .write = regmap_map_write_file,
         .llseek = default_llseek,
@@ -243,7 +237,7 @@ out:
 }
 
 static const struct file_operations regmap_access_fops = {
-        .open = regmap_open_file,
+        .open = simple_open,
         .read = regmap_access_read_file,
         .llseek = default_llseek,
 };
diff --git a/drivers/bluetooth/btmrvl_debugfs.c b/drivers/bluetooth/btmrvl_debugfs.c
index 6c20bbb54b71..428dbb7574bd 100644
--- a/drivers/bluetooth/btmrvl_debugfs.c
+++ b/drivers/bluetooth/btmrvl_debugfs.c
@@ -45,12 +45,6 @@ struct btmrvl_debugfs_data {
         struct dentry *txdnldready;
 };
 
-static int btmrvl_open_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t btmrvl_hscfgcmd_write(struct file *file,
                         const char __user *ubuf, size_t count, loff_t *ppos)
 {
@@ -93,7 +87,7 @@ static ssize_t btmrvl_hscfgcmd_read(struct file *file, char __user *userbuf,
 static const struct file_operations btmrvl_hscfgcmd_fops = {
         .read   = btmrvl_hscfgcmd_read,
         .write  = btmrvl_hscfgcmd_write,
-        .open   = btmrvl_open_generic,
+        .open   = simple_open,
         .llseek = default_llseek,
 };
 
@@ -134,7 +128,7 @@ static ssize_t btmrvl_psmode_read(struct file *file, char __user *userbuf,
 static const struct file_operations btmrvl_psmode_fops = {
         .read   = btmrvl_psmode_read,
         .write  = btmrvl_psmode_write,
-        .open   = btmrvl_open_generic,
+        .open   = simple_open,
         .llseek = default_llseek,
 };
 
@@ -180,7 +174,7 @@ static ssize_t btmrvl_pscmd_read(struct file *file, char __user *userbuf,
 static const struct file_operations btmrvl_pscmd_fops = {
         .read = btmrvl_pscmd_read,
         .write = btmrvl_pscmd_write,
-        .open = btmrvl_open_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -221,7 +215,7 @@ static ssize_t btmrvl_gpiogap_read(struct file *file, char __user *userbuf,
 static const struct file_operations btmrvl_gpiogap_fops = {
         .read   = btmrvl_gpiogap_read,
         .write  = btmrvl_gpiogap_write,
-        .open   = btmrvl_open_generic,
+        .open   = simple_open,
         .llseek = default_llseek,
 };
 
@@ -265,7 +259,7 @@ static ssize_t btmrvl_hscmd_read(struct file *file, char __user *userbuf,
 static const struct file_operations btmrvl_hscmd_fops = {
         .read   = btmrvl_hscmd_read,
         .write  = btmrvl_hscmd_write,
-        .open   = btmrvl_open_generic,
+        .open   = simple_open,
         .llseek = default_llseek,
 };
 
@@ -305,7 +299,7 @@ static ssize_t btmrvl_hsmode_read(struct file *file, char __user * userbuf,
 static const struct file_operations btmrvl_hsmode_fops = {
         .read   = btmrvl_hsmode_read,
         .write  = btmrvl_hsmode_write,
-        .open   = btmrvl_open_generic,
+        .open   = simple_open,
         .llseek = default_llseek,
 };
 
@@ -323,7 +317,7 @@ static ssize_t btmrvl_curpsmode_read(struct file *file, char __user *userbuf,
 
 static const struct file_operations btmrvl_curpsmode_fops = {
         .read   = btmrvl_curpsmode_read,
-        .open   = btmrvl_open_generic,
+        .open   = simple_open,
         .llseek = default_llseek,
 };
 
@@ -341,7 +335,7 @@ static ssize_t btmrvl_psstate_read(struct file *file, char __user * userbuf,
 
 static const struct file_operations btmrvl_psstate_fops = {
         .read   = btmrvl_psstate_read,
-        .open   = btmrvl_open_generic,
+        .open   = simple_open,
         .llseek = default_llseek,
 };
 
@@ -359,7 +353,7 @@ static ssize_t btmrvl_hsstate_read(struct file *file, char __user *userbuf,
 
 static const struct file_operations btmrvl_hsstate_fops = {
         .read   = btmrvl_hsstate_read,
-        .open   = btmrvl_open_generic,
+        .open   = simple_open,
         .llseek = default_llseek,
 };
 
@@ -378,7 +372,7 @@ static ssize_t btmrvl_txdnldready_read(struct file *file, char __user *userbuf,
 
 static const struct file_operations btmrvl_txdnldready_fops = {
         .read   = btmrvl_txdnldready_read,
-        .open   = btmrvl_open_generic,
+        .open   = simple_open,
         .llseek = default_llseek,
 };
 
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index b58b56187065..ddf86b6500b7 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1038,12 +1038,6 @@ static struct attribute_group port_attribute_group = {
         .attrs = port_sysfs_entries,
 };
 
-static int debugfs_open(struct inode *inode, struct file *filp)
-{
-        filp->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t debugfs_read(struct file *filp, char __user *ubuf,
                             size_t count, loff_t *offp)
 {
@@ -1087,7 +1081,7 @@ static ssize_t debugfs_read(struct file *filp, char __user *ubuf,
 
 static const struct file_operations port_debugfs_ops = {
         .owner = THIS_MODULE,
-        .open  = debugfs_open,
+        .open  = simple_open,
         .read  = debugfs_read,
 };
 
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c
index dc89455f5550..750925f9638b 100644
--- a/drivers/dma/coh901318.c
+++ b/drivers/dma/coh901318.c
@@ -104,13 +104,6 @@ static void coh901318_list_print(struct coh901318_chan *cohc,
 static struct coh901318_base *debugfs_dma_base;
 static struct dentry *dma_dentry;
 
-static int coh901318_debugfs_open(struct inode *inode, struct file *file)
-{
-
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static int coh901318_debugfs_read(struct file *file, char __user *buf,
                                   size_t count, loff_t *f_pos)
 {
@@ -158,7 +151,7 @@ static int coh901318_debugfs_read(struct file *file, char __user *buf,
 
 static const struct file_operations coh901318_debugfs_status_operations = {
         .owner          = THIS_MODULE,
-        .open           = coh901318_debugfs_open,
+        .open           = simple_open,
         .read           = coh901318_debugfs_read,
         .llseek         = default_llseek,
 };
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index fdb7ccefffbd..b505b70dba05 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1502,14 +1502,6 @@ static int i915_ppgtt_info(struct seq_file *m, void *data)
         return 0;
 }
 
-static int
-i915_debugfs_common_open(struct inode *inode,
-                         struct file *filp)
-{
-        filp->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t
 i915_wedged_read(struct file *filp,
                  char __user *ubuf,
@@ -1560,7 +1552,7 @@ i915_wedged_write(struct file *filp,
 
 static const struct file_operations i915_wedged_fops = {
         .owner = THIS_MODULE,
-        .open = i915_debugfs_common_open,
+        .open = simple_open,
         .read = i915_wedged_read,
         .write = i915_wedged_write,
         .llseek = default_llseek,
@@ -1622,7 +1614,7 @@ i915_max_freq_write(struct file *filp,
 
 static const struct file_operations i915_max_freq_fops = {
         .owner = THIS_MODULE,
-        .open = i915_debugfs_common_open,
+        .open = simple_open,
         .read = i915_max_freq_read,
         .write = i915_max_freq_write,
         .llseek = default_llseek,
@@ -1693,7 +1685,7 @@ i915_cache_sharing_write(struct file *filp,
 
 static const struct file_operations i915_cache_sharing_fops = {
         .owner = THIS_MODULE,
-        .open = i915_debugfs_common_open,
+        .open = simple_open,
         .read = i915_cache_sharing_read,
         .write = i915_cache_sharing_write,
         .llseek = default_llseek,
diff --git a/drivers/hid/hid-picolcd.c b/drivers/hid/hid-picolcd.c
index 12f9777c385d..45c3433f7986 100644
--- a/drivers/hid/hid-picolcd.c
+++ b/drivers/hid/hid-picolcd.c
@@ -1525,12 +1525,6 @@ static const struct file_operations picolcd_debug_reset_fops = {
 /*
  * The "eeprom" file
  */
-static int picolcd_debug_eeprom_open(struct inode *i, struct file *f)
-{
-        f->private_data = i->i_private;
-        return 0;
-}
-
 static ssize_t picolcd_debug_eeprom_read(struct file *f, char __user *u,
                 size_t s, loff_t *off)
 {
@@ -1618,7 +1612,7 @@ static ssize_t picolcd_debug_eeprom_write(struct file *f, const char __user *u,
  */
 static const struct file_operations picolcd_debug_eeprom_fops = {
         .owner    = THIS_MODULE,
-        .open     = picolcd_debug_eeprom_open,
+        .open     = simple_open,
         .read     = picolcd_debug_eeprom_read,
         .write    = picolcd_debug_eeprom_write,
         .llseek   = generic_file_llseek,
@@ -1627,12 +1621,6 @@ static const struct file_operations picolcd_debug_eeprom_fops = {
 /*
  * The "flash" file
  */
-static int picolcd_debug_flash_open(struct inode *i, struct file *f)
-{
-        f->private_data = i->i_private;
-        return 0;
-}
-
 /* record a flash address to buf (bounds check to be done by caller) */
 static int _picolcd_flash_setaddr(struct picolcd_data *data, u8 *buf, long off)
 {
@@ -1817,7 +1805,7 @@ static ssize_t picolcd_debug_flash_write(struct file *f, const char __user *u,
  */
 static const struct file_operations picolcd_debug_flash_fops = {
         .owner    = THIS_MODULE,
-        .open     = picolcd_debug_flash_open,
+        .open     = simple_open,
         .read     = picolcd_debug_flash_read,
         .write    = picolcd_debug_flash_write,
         .llseek   = generic_file_llseek,
diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c
index 17dabc1f339e..eec329197c16 100644
--- a/drivers/hid/hid-wiimote-debug.c
+++ b/drivers/hid/hid-wiimote-debug.c
@@ -23,12 +23,6 @@ struct wiimote_debug {
         struct dentry *drm;
 };
 
-static int wiidebug_eeprom_open(struct inode *i, struct file *f)
-{
-        f->private_data = i->i_private;
-        return 0;
-}
-
 static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s,
                                                                 loff_t *off)
 {
@@ -83,7 +77,7 @@ static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s,
 
 static const struct file_operations wiidebug_eeprom_fops = {
         .owner = THIS_MODULE,
-        .open = wiidebug_eeprom_open,
+        .open = simple_open,
         .read = wiidebug_eeprom_read,
         .llseek = generic_file_llseek,
 };
diff --git a/drivers/idle/i7300_idle.c b/drivers/idle/i7300_idle.c
index c976285d313e..fa080ebd568f 100644
--- a/drivers/idle/i7300_idle.c
+++ b/drivers/idle/i7300_idle.c
@@ -516,12 +516,6 @@ static struct notifier_block i7300_idle_nb = {
 
 MODULE_DEVICE_TABLE(pci, pci_tbl);
 
-int stats_open_generic(struct inode *inode, struct file *fp)
-{
-        fp->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t stats_read_ul(struct file *fp, char __user *ubuf, size_t count,
                                 loff_t *off)
 {
@@ -534,7 +528,7 @@ static ssize_t stats_read_ul(struct file *fp, char __user *ubuf, size_t count,
 }
 
 static const struct file_operations idle_fops = {
-        .open   = stats_open_generic,
+        .open   = simple_open,
         .read   = stats_read_ul,
         .llseek = default_llseek,
 };
diff --git a/drivers/iommu/omap-iommu-debug.c b/drivers/iommu/omap-iommu-debug.c
index 103dbd92e256..f55fc5dfbadc 100644
--- a/drivers/iommu/omap-iommu-debug.c
+++ b/drivers/iommu/omap-iommu-debug.c
@@ -323,15 +323,9 @@ err_out:
         return count;
 }
 
-static int debug_open_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 #define DEBUG_FOPS(name)                                                \
         static const struct file_operations debug_##name##_fops = {     \
-                .open = debug_open_generic,                             \
+                .open = simple_open,                                    \
                 .read = debug_read_##name,                              \
                 .write = debug_write_##name,                            \
                 .llseek = generic_file_llseek,                          \
@@ -339,7 +333,7 @@ static int debug_open_generic(struct inode *inode, struct file *file)
 
 #define DEBUG_FOPS_RO(name)                                             \
         static const struct file_operations debug_##name##_fops = {     \
-                .open = debug_open_generic,                             \
+                .open = simple_open,                                    \
                 .read = debug_read_##name,                              \
                 .llseek = generic_file_llseek,                          \
         };
diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
index 3aa36eb5c79b..44a3fdbadef4 100644
--- a/drivers/mfd/aat2870-core.c
+++ b/drivers/mfd/aat2870-core.c
@@ -262,13 +262,6 @@ static ssize_t aat2870_dump_reg(struct aat2870_data *aat2870, char *buf)
         return count;
 }
 
-static int aat2870_reg_open_file(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-
-        return 0;
-}
-
 static ssize_t aat2870_reg_read_file(struct file *file, char __user *user_buf,
                                      size_t count, loff_t *ppos)
 {
@@ -330,7 +323,7 @@ static ssize_t aat2870_reg_write_file(struct file *file,
 }
 
 static const struct file_operations aat2870_reg_fops = {
-        .open = aat2870_reg_open_file,
+        .open = simple_open,
         .read = aat2870_reg_read_file,
         .write = aat2870_reg_write_file,
 };
diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c
index 60107ee166fc..1efad20fb175 100644
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -483,12 +483,6 @@ struct ab3100_get_set_reg_priv {
         bool mode;
 };
 
-static int ab3100_get_set_reg_open_file(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t ab3100_get_set_reg(struct file *file,
                                   const char __user *user_buf,
                                   size_t count, loff_t *ppos)
@@ -583,7 +577,7 @@ static ssize_t ab3100_get_set_reg(struct file *file,
 }
 
 static const struct file_operations ab3100_get_set_reg_fops = {
-        .open = ab3100_get_set_reg_open_file,
+        .open = simple_open,
         .write = ab3100_get_set_reg,
         .llseek = noop_llseek,
 };
diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c
index 1c034b80d408..6673e578b3e9 100644
--- a/drivers/misc/ibmasm/ibmasmfs.c
+++ b/drivers/misc/ibmasm/ibmasmfs.c
@@ -500,12 +500,6 @@ static ssize_t r_heartbeat_file_write(struct file *file, const char __user *buf,
         return 1;
 }
 
-static int remote_settings_file_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static int remote_settings_file_close(struct inode *inode, struct file *file)
 {
         return 0;
@@ -600,7 +594,7 @@ static const struct file_operations r_heartbeat_fops = {
 };
 
 static const struct file_operations remote_settings_fops = {
-        .open =         remote_settings_file_open,
+        .open =         simple_open,
         .release =      remote_settings_file_close,
         .read =         remote_settings_file_read,
         .write =        remote_settings_file_write,
diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c
index e2cdebf40840..61af9bb560ab 100644
--- a/drivers/mtd/ubi/debug.c
+++ b/drivers/mtd/ubi/debug.c
@@ -386,19 +386,11 @@ out:
         return count;
 }
 
-static int default_open(struct inode *inode, struct file *file)
-{
-        if (inode->i_private)
-                file->private_data = inode->i_private;
-
-        return 0;
-}
-
 /* File operations for all UBI debugfs files */
 static const struct file_operations dfs_fops = {
         .read   = dfs_file_read,
         .write  = dfs_file_write,
-        .open   = default_open,
+        .open   = simple_open,
         .llseek = no_llseek,
         .owner  = THIS_MODULE,
 };
diff --git a/drivers/net/caif/caif_spi.c b/drivers/net/caif/caif_spi.c
index 96391c36fa74..b71ce9bf0afb 100644
--- a/drivers/net/caif/caif_spi.c
+++ b/drivers/net/caif/caif_spi.c
@@ -127,12 +127,6 @@ static inline void dev_debugfs_rem(struct cfspi *cfspi)
         debugfs_remove(cfspi->dbgfs_dir);
 }
 
-static int dbgfs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t dbgfs_state(struct file *file, char __user *user_buf,
                            size_t count, loff_t *ppos)
 {
@@ -243,13 +237,13 @@ static ssize_t dbgfs_frame(struct file *file, char __user *user_buf,
 }
 
 static const struct file_operations dbgfs_state_fops = {
-        .open = dbgfs_open,
+        .open = simple_open,
         .read = dbgfs_state,
         .owner = THIS_MODULE
 };
 
 static const struct file_operations dbgfs_frame_fops = {
-        .open = dbgfs_open,
+        .open = simple_open,
         .read = dbgfs_frame,
         .owner = THIS_MODULE
 };
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 05ff076af06d..b126b98065a9 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -2000,13 +2000,6 @@ static const struct ethtool_ops cxgb_ethtool_ops = {
 /*
  * debugfs support
  */
-
-static int mem_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t mem_read(struct file *file, char __user *buf, size_t count,
                         loff_t *ppos)
 {
@@ -2050,7 +2043,7 @@ static ssize_t mem_read(struct file *file, char __user *buf, size_t count,
 
 static const struct file_operations mem_debugfs_fops = {
         .owner   = THIS_MODULE,
-        .open    = mem_open,
+        .open    = simple_open,
         .read    = mem_read,
         .llseek  = default_llseek,
 };
diff --git a/drivers/net/wimax/i2400m/debugfs.c b/drivers/net/wimax/i2400m/debugfs.c
index 129ba36bd04d..4b66ab1d0e5c 100644
--- a/drivers/net/wimax/i2400m/debugfs.c
+++ b/drivers/net/wimax/i2400m/debugfs.c
@@ -53,17 +53,6 @@ struct dentry *debugfs_create_netdev_queue_stopped(
                                    &fops_netdev_queue_stopped);
 }
 
-
-/*
- * inode->i_private has the @data argument to debugfs_create_file()
- */
-static
-int i2400m_stats_open(struct inode *inode, struct file *filp)
-{
-        filp->private_data = inode->i_private;
-        return 0;
-}
-
 /*
  * We don't allow partial reads of this file, as then the reader would
  * get weirdly confused data as it is updated.
@@ -117,7 +106,7 @@ ssize_t i2400m_rx_stats_write(struct file *filp, const char __user *buffer,
 static
 const struct file_operations i2400m_rx_stats_fops = {
         .owner =        THIS_MODULE,
-        .open =         i2400m_stats_open,
+        .open =         simple_open,
         .read =         i2400m_rx_stats_read,
         .write =        i2400m_rx_stats_write,
         .llseek =       default_llseek,
@@ -170,7 +159,7 @@ ssize_t i2400m_tx_stats_write(struct file *filp, const char __user *buffer,
 static
 const struct file_operations i2400m_tx_stats_fops = {
         .owner =        THIS_MODULE,
-        .open =         i2400m_stats_open,
+        .open =         simple_open,
         .read =         i2400m_tx_stats_read,
         .write =        i2400m_tx_stats_write,
         .llseek =       default_llseek,
diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c
index 8c5ce8b0c734..e5e8f45d86ac 100644
--- a/drivers/net/wireless/ath/ath5k/debug.c
+++ b/drivers/net/wireless/ath/ath5k/debug.c
@@ -71,13 +71,6 @@ static unsigned int ath5k_debug;
 module_param_named(debug, ath5k_debug, uint, 0);
 
 
-static int ath5k_debugfs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
-
 /* debugfs: registers */
 
 struct reg {
@@ -265,7 +258,7 @@ static ssize_t write_file_beacon(struct file *file,
 static const struct file_operations fops_beacon = {
         .read = read_file_beacon,
         .write = write_file_beacon,
-        .open = ath5k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -285,7 +278,7 @@ static ssize_t write_file_reset(struct file *file,
 
 static const struct file_operations fops_reset = {
         .write = write_file_reset,
-        .open = ath5k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = noop_llseek,
 };
@@ -365,7 +358,7 @@ static ssize_t write_file_debug(struct file *file,
 static const struct file_operations fops_debug = {
         .read = read_file_debug,
         .write = write_file_debug,
-        .open = ath5k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -477,7 +470,7 @@ static ssize_t write_file_antenna(struct file *file,
 static const struct file_operations fops_antenna = {
         .read = read_file_antenna,
         .write = write_file_antenna,
-        .open = ath5k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -532,7 +525,7 @@ static ssize_t read_file_misc(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_misc = {
         .read = read_file_misc,
-        .open = ath5k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
 };
 
@@ -647,7 +640,7 @@ static ssize_t write_file_frameerrors(struct file *file,
 static const struct file_operations fops_frameerrors = {
         .read = read_file_frameerrors,
         .write = write_file_frameerrors,
-        .open = ath5k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -810,7 +803,7 @@ static ssize_t write_file_ani(struct file *file,
 static const struct file_operations fops_ani = {
         .read = read_file_ani,
         .write = write_file_ani,
-        .open = ath5k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -881,7 +874,7 @@ static ssize_t write_file_queue(struct file *file,
 static const struct file_operations fops_queue = {
         .read = read_file_queue,
         .write = write_file_queue,
-        .open = ath5k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
diff --git a/drivers/net/wireless/ath/ath6kl/debug.c b/drivers/net/wireless/ath/ath6kl/debug.c
index 552adb3f80d0..d01403a263ff 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.c
+++ b/drivers/net/wireless/ath/ath6kl/debug.c
@@ -217,12 +217,6 @@ void dump_cred_dist_stats(struct htc_target *target)
                    target->credit_info->cur_free_credits);
 }
 
-static int ath6kl_debugfs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 void ath6kl_debug_war(struct ath6kl *ar, enum ath6kl_war war)
 {
         switch (war) {
@@ -263,7 +257,7 @@ static ssize_t read_file_war_stats(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_war_stats = {
         .read = read_file_war_stats,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -488,7 +482,7 @@ static ssize_t ath6kl_fwlog_mask_write(struct file *file,
 }
 
 static const struct file_operations fops_fwlog_mask = {
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .read = ath6kl_fwlog_mask_read,
         .write = ath6kl_fwlog_mask_write,
         .owner = THIS_MODULE,
@@ -634,7 +628,7 @@ static ssize_t read_file_tgt_stats(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_tgt_stats = {
         .read = read_file_tgt_stats,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -699,7 +693,7 @@ static ssize_t read_file_credit_dist_stats(struct file *file,
 
 static const struct file_operations fops_credit_dist_stats = {
         .read = read_file_credit_dist_stats,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -802,7 +796,7 @@ static ssize_t ath6kl_endpoint_stats_write(struct file *file,
 }
 
 static const struct file_operations fops_endpoint_stats = {
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .read = ath6kl_endpoint_stats_read,
         .write = ath6kl_endpoint_stats_write,
         .owner = THIS_MODULE,
@@ -875,7 +869,7 @@ static ssize_t ath6kl_regread_write(struct file *file,
 static const struct file_operations fops_diag_reg_read = {
         .read = ath6kl_regread_read,
         .write = ath6kl_regread_write,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -999,7 +993,7 @@ static ssize_t ath6kl_lrssi_roam_read(struct file *file,
 static const struct file_operations fops_lrssi_roam_threshold = {
         .read = ath6kl_lrssi_roam_read,
         .write = ath6kl_lrssi_roam_write,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1061,7 +1055,7 @@ static ssize_t ath6kl_regwrite_write(struct file *file,
 static const struct file_operations fops_diag_reg_write = {
         .read = ath6kl_regwrite_read,
         .write = ath6kl_regwrite_write,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1166,7 +1160,7 @@ static ssize_t ath6kl_roam_table_read(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_roam_table = {
         .read = ath6kl_roam_table_read,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1204,7 +1198,7 @@ static ssize_t ath6kl_force_roam_write(struct file *file,
 
 static const struct file_operations fops_force_roam = {
         .write = ath6kl_force_roam_write,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1244,7 +1238,7 @@ static ssize_t ath6kl_roam_mode_write(struct file *file,
 
 static const struct file_operations fops_roam_mode = {
         .write = ath6kl_roam_mode_write,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1286,7 +1280,7 @@ static ssize_t ath6kl_keepalive_write(struct file *file,
 }
 
 static const struct file_operations fops_keepalive = {
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .read = ath6kl_keepalive_read,
         .write = ath6kl_keepalive_write,
         .owner = THIS_MODULE,
@@ -1331,7 +1325,7 @@ static ssize_t ath6kl_disconnect_timeout_write(struct file *file,
 }
 
 static const struct file_operations fops_disconnect_timeout = {
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .read = ath6kl_disconnect_timeout_read,
         .write = ath6kl_disconnect_timeout_write,
         .owner = THIS_MODULE,
@@ -1512,7 +1506,7 @@ static ssize_t ath6kl_create_qos_write(struct file *file,
 
 static const struct file_operations fops_create_qos = {
         .write = ath6kl_create_qos_write,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1560,7 +1554,7 @@ static ssize_t ath6kl_delete_qos_write(struct file *file,
 
 static const struct file_operations fops_delete_qos = {
         .write = ath6kl_delete_qos_write,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1593,7 +1587,7 @@ static ssize_t ath6kl_bgscan_int_write(struct file *file,
 
 static const struct file_operations fops_bgscan_int = {
         .write = ath6kl_bgscan_int_write,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1651,7 +1645,7 @@ static ssize_t ath6kl_listen_int_read(struct file *file,
 static const struct file_operations fops_listen_int = {
         .read = ath6kl_listen_int_read,
         .write = ath6kl_listen_int_write,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1711,7 +1705,7 @@ static ssize_t ath6kl_power_params_write(struct file *file,
 
 static const struct file_operations fops_power_params = {
         .write = ath6kl_power_params_write,
-        .open = ath6kl_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 35d1c8e91d1c..ff47b32ecaf4 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -26,11 +26,6 @@
 #define REG_READ_D(_ah, _reg) \
         ath9k_hw_common(_ah)->ops->read((_ah), (_reg))
 
-static int ath9k_debugfs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
 
 static ssize_t ath9k_debugfs_read_buf(struct file *file, char __user *user_buf,
                                       size_t count, loff_t *ppos)
@@ -83,7 +78,7 @@ static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
 static const struct file_operations fops_debug = {
         .read = read_file_debug,
         .write = write_file_debug,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -129,7 +124,7 @@ static ssize_t write_file_tx_chainmask(struct file *file, const char __user *use
 static const struct file_operations fops_tx_chainmask = {
         .read = read_file_tx_chainmask,
         .write = write_file_tx_chainmask,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -172,7 +167,7 @@ static ssize_t write_file_rx_chainmask(struct file *file, const char __user *use
 static const struct file_operations fops_rx_chainmask = {
         .read = read_file_rx_chainmask,
         .write = write_file_rx_chainmask,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -223,7 +218,7 @@ static ssize_t write_file_disable_ani(struct file *file,
 static const struct file_operations fops_disable_ani = {
         .read = read_file_disable_ani,
         .write = write_file_disable_ani,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -324,7 +319,7 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_dma = {
         .read = read_file_dma,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -446,7 +441,7 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_interrupt = {
         .read = read_file_interrupt,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -852,28 +847,28 @@ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf,
 
 static const struct file_operations fops_xmit = {
         .read = read_file_xmit,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
 
 static const struct file_operations fops_stations = {
         .read = read_file_stations,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
 
 static const struct file_operations fops_misc = {
         .read = read_file_misc,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
 
 static const struct file_operations fops_reset = {
         .read = read_file_reset,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1016,7 +1011,7 @@ void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs)
 
 static const struct file_operations fops_recv = {
         .read = read_file_recv,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1055,7 +1050,7 @@ static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
 static const struct file_operations fops_regidx = {
         .read = read_file_regidx,
         .write = write_file_regidx,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1102,7 +1097,7 @@ static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
 static const struct file_operations fops_regval = {
         .read = read_file_regval,
         .write = write_file_regval,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1191,7 +1186,7 @@ static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_dump_nfcal = {
         .read = read_file_dump_nfcal,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1219,7 +1214,7 @@ static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_base_eeprom = {
         .read = read_file_base_eeprom,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -1247,7 +1242,7 @@ static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_modal_eeprom = {
         .read = read_file_modal_eeprom,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
diff --git a/drivers/net/wireless/ath/ath9k/dfs_debug.c b/drivers/net/wireless/ath/ath9k/dfs_debug.c
index 106d031d834a..4364c103ed33 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_debug.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_debug.c
@@ -60,16 +60,9 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf,
         return retval;
 }
 
-static int ath9k_dfs_debugfs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-
-        return 0;
-}
-
 static const struct file_operations fops_dfs_stats = {
         .read = read_file_dfs,
-        .open = ath9k_dfs_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
index d3ff33c71aa5..3035deb7a0cd 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
@@ -16,12 +16,6 @@
 
 #include "htc.h"
 
-static int ath9k_debugfs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t read_file_tgt_int_stats(struct file *file, char __user *user_buf,
                                        size_t count, loff_t *ppos)
 {
@@ -75,7 +69,7 @@ static ssize_t read_file_tgt_int_stats(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_tgt_int_stats = {
         .read = read_file_tgt_int_stats,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -145,7 +139,7 @@ static ssize_t read_file_tgt_tx_stats(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_tgt_tx_stats = {
         .read = read_file_tgt_tx_stats,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -191,7 +185,7 @@ static ssize_t read_file_tgt_rx_stats(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_tgt_rx_stats = {
         .read = read_file_tgt_rx_stats,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -243,7 +237,7 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_xmit = {
         .read = read_file_xmit,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -364,7 +358,7 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_recv = {
         .read = read_file_recv,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -399,7 +393,7 @@ static ssize_t read_file_slot(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_slot = {
         .read = read_file_slot,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -446,7 +440,7 @@ static ssize_t read_file_queue(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_queue = {
         .read = read_file_queue,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -487,7 +481,7 @@ static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
 static const struct file_operations fops_debug = {
         .read = read_file_debug,
         .write = write_file_debug,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -636,7 +630,7 @@ static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_base_eeprom = {
         .read = read_file_base_eeprom,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
@@ -917,7 +911,7 @@ static ssize_t read_file_modal_eeprom(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_modal_eeprom = {
         .read = read_file_modal_eeprom,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE,
         .llseek = default_llseek,
 };
diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index 4f848493fece..08bb45532701 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -1480,12 +1480,6 @@ static void ath_rate_update(void *priv, struct ieee80211_supported_band *sband,
 
 #ifdef CONFIG_ATH9K_DEBUGFS
 
-static int ath9k_debugfs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
                                 size_t count, loff_t *ppos)
 {
@@ -1553,7 +1547,7 @@ static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_rcstat = {
         .read = read_file_rcstat,
-        .open = ath9k_debugfs_open,
+        .open = simple_open,
         .owner = THIS_MODULE
 };
 
diff --git a/drivers/net/wireless/ath/carl9170/debug.c b/drivers/net/wireless/ath/carl9170/debug.c
index 3c164226687f..93fe6003a493 100644
--- a/drivers/net/wireless/ath/carl9170/debug.c
+++ b/drivers/net/wireless/ath/carl9170/debug.c
@@ -48,11 +48,6 @@
 #define ADD(buf, off, max, fmt, args...)                                \
         off += snprintf(&buf[off], max - off, fmt, ##args);
 
-static int carl9170_debugfs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
 
 struct carl9170_debugfs_fops {
         unsigned int read_bufsize;
@@ -178,7 +173,7 @@ static const struct carl9170_debugfs_fops carl_debugfs_##name ##_ops = {\
         .attr = _attr,                                                  \
         .req_dev_state = _dstate,                                       \
         .fops = {                                                       \
-                .open   = carl9170_debugfs_open,                        \
+                .open   = simple_open,                                  \
                 .read   = carl9170_debugfs_read,                        \
                 .write  = carl9170_debugfs_write,                       \
                 .owner  = THIS_MODULE                                   \
diff --git a/drivers/net/wireless/b43/debugfs.c b/drivers/net/wireless/b43/debugfs.c
index e751fdee89b2..e807bd930647 100644
--- a/drivers/net/wireless/b43/debugfs.c
+++ b/drivers/net/wireless/b43/debugfs.c
@@ -500,12 +500,6 @@ out:
 
 #undef fappend
 
-static int b43_debugfs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf,
                                 size_t count, loff_t *ppos)
 {
@@ -624,7 +618,7 @@ out_unlock:
                 .read   = _read,                                \
                 .write  = _write,                               \
                 .fops   = {                                     \
-                        .open   = b43_debugfs_open,             \
+                        .open   = simple_open,                  \
                         .read   = b43_debugfs_read,             \
                         .write  = b43_debugfs_write,            \
                         .llseek = generic_file_llseek,          \
diff --git a/drivers/net/wireless/b43legacy/debugfs.c b/drivers/net/wireless/b43legacy/debugfs.c
index 5e28ad0d6d17..1965edb765a2 100644
--- a/drivers/net/wireless/b43legacy/debugfs.c
+++ b/drivers/net/wireless/b43legacy/debugfs.c
@@ -197,12 +197,6 @@ static int restart_write_file(struct b43legacy_wldev *dev, const char *buf, size
 
 #undef fappend
 
-static int b43legacy_debugfs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t b43legacy_debugfs_read(struct file *file, char __user *userbuf,
                                 size_t count, loff_t *ppos)
 {
@@ -331,7 +325,7 @@ out_unlock:
                 .read   = _read,                                \
                 .write  = _write,                               \
                 .fops   = {                                     \
-                        .open   = b43legacy_debugfs_open,               \
+                        .open   = simple_open,                          \
                         .read   = b43legacy_debugfs_read,               \
                         .write  = b43legacy_debugfs_write,              \
                         .llseek = generic_file_llseek,                  \
diff --git a/drivers/net/wireless/iwlegacy/3945-rs.c b/drivers/net/wireless/iwlegacy/3945-rs.c
index 70bee1a4d876..4b10157d8686 100644
--- a/drivers/net/wireless/iwlegacy/3945-rs.c
+++ b/drivers/net/wireless/iwlegacy/3945-rs.c
@@ -821,12 +821,6 @@ out:
 }
 
 #ifdef CONFIG_MAC80211_DEBUGFS
-static int
-il3945_open_file_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
 
 static ssize_t
 il3945_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf,
@@ -862,7 +856,7 @@ il3945_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf,
 
 static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
         .read = il3945_sta_dbgfs_stats_table_read,
-        .open = il3945_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
diff --git a/drivers/net/wireless/iwlegacy/4965-rs.c b/drivers/net/wireless/iwlegacy/4965-rs.c
index d7e2856e41d3..11ab1247fae1 100644
--- a/drivers/net/wireless/iwlegacy/4965-rs.c
+++ b/drivers/net/wireless/iwlegacy/4965-rs.c
@@ -2518,12 +2518,6 @@ il4965_rs_free_sta(void *il_r, struct ieee80211_sta *sta, void *il_sta)
 }
 
 #ifdef CONFIG_MAC80211_DEBUGFS
-static int
-il4965_open_file_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
 
 static void
 il4965_rs_dbgfs_set_mcs(struct il_lq_sta *lq_sta, u32 * rate_n_flags, int idx)
@@ -2695,7 +2689,7 @@ il4965_rs_sta_dbgfs_scale_table_read(struct file *file, char __user *user_buf,
 static const struct file_operations rs_sta_dbgfs_scale_table_ops = {
         .write = il4965_rs_sta_dbgfs_scale_table_write,
         .read = il4965_rs_sta_dbgfs_scale_table_read,
-        .open = il4965_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -2740,7 +2734,7 @@ il4965_rs_sta_dbgfs_stats_table_read(struct file *file, char __user *user_buf,
 
 static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
         .read = il4965_rs_sta_dbgfs_stats_table_read,
-        .open = il4965_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -2768,7 +2762,7 @@ il4965_rs_sta_dbgfs_rate_scale_data_read(struct file *file,
 
 static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = {
         .read = il4965_rs_sta_dbgfs_rate_scale_data_read,
-        .open = il4965_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
diff --git a/drivers/net/wireless/iwlegacy/debug.c b/drivers/net/wireless/iwlegacy/debug.c
index 229849150aac..eff26501d60a 100644
--- a/drivers/net/wireless/iwlegacy/debug.c
+++ b/drivers/net/wireless/iwlegacy/debug.c
@@ -160,18 +160,12 @@ static ssize_t il_dbgfs_##name##_write(struct file *file,              \
                                         const char __user *user_buf,    \
                                         size_t count, loff_t *ppos);
 
-static int
-il_dbgfs_open_file_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
 
 #define DEBUGFS_READ_FILE_OPS(name)                             \
         DEBUGFS_READ_FUNC(name);                                \
 static const struct file_operations il_dbgfs_##name##_ops = {   \
         .read = il_dbgfs_##name##_read,                         \
-        .open = il_dbgfs_open_file_generic,                     \
+        .open = simple_open,                                    \
         .llseek = generic_file_llseek,                          \
 };
 
@@ -179,7 +173,7 @@ static const struct file_operations il_dbgfs_##name##_ops = {	\
         DEBUGFS_WRITE_FUNC(name);                               \
 static const struct file_operations il_dbgfs_##name##_ops = {   \
         .write = il_dbgfs_##name##_write,                       \
-        .open = il_dbgfs_open_file_generic,                     \
+        .open = simple_open,                                    \
         .llseek = generic_file_llseek,                          \
 };
 
@@ -189,7 +183,7 @@ static const struct file_operations il_dbgfs_##name##_ops = {	\
 static const struct file_operations il_dbgfs_##name##_ops = {   \
         .write = il_dbgfs_##name##_write,                       \
         .read = il_dbgfs_##name##_read,                         \
-        .open = il_dbgfs_open_file_generic,                     \
+        .open = simple_open,                                    \
         .llseek = generic_file_llseek,                          \
 };
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 53f8c51cfcdb..7e590b349dd7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -3083,11 +3083,6 @@ static void rs_free_sta(void *priv_r, struct ieee80211_sta *sta,
 }
 
 #ifdef CONFIG_MAC80211_DEBUGFS
-static int open_file_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
 static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta,
                              u32 *rate_n_flags, int index)
 {
@@ -3226,7 +3221,7 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
 static const struct file_operations rs_sta_dbgfs_scale_table_ops = {
         .write = rs_sta_dbgfs_scale_table_write,
         .read = rs_sta_dbgfs_scale_table_read,
-        .open = open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
@@ -3269,7 +3264,7 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
 
 static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
         .read = rs_sta_dbgfs_stats_table_read,
-        .open = open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -3295,7 +3290,7 @@ static ssize_t rs_sta_dbgfs_rate_scale_data_read(struct file *file,
 
 static const struct file_operations rs_sta_dbgfs_rate_scale_data_ops = {
         .read = rs_sta_dbgfs_rate_scale_data_read,
-        .open = open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
index b7b1c04f2fba..2bbaebd99ad4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c
@@ -84,17 +84,11 @@ static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
                                         size_t count, loff_t *ppos);
 
 
-static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 #define DEBUGFS_READ_FILE_OPS(name)                                     \
         DEBUGFS_READ_FUNC(name);                                        \
 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
         .read = iwl_dbgfs_##name##_read,                                \
-        .open = iwl_dbgfs_open_file_generic,                            \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
@@ -102,7 +96,7 @@ static const struct file_operations iwl_dbgfs_##name##_ops = {          \
         DEBUGFS_WRITE_FUNC(name);                                       \
 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
         .write = iwl_dbgfs_##name##_write,                              \
-        .open = iwl_dbgfs_open_file_generic,                            \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
@@ -113,7 +107,7 @@ static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
         .write = iwl_dbgfs_##name##_write,                              \
         .read = iwl_dbgfs_##name##_read,                                \
-        .open = iwl_dbgfs_open_file_generic,                            \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
index b4f796c82e1e..4d7b30d3e648 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
@@ -1898,17 +1898,11 @@ static ssize_t iwl_dbgfs_##name##_write(struct file *file,              \
                                         size_t count, loff_t *ppos);
 
 
-static int iwl_dbgfs_open_file_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 #define DEBUGFS_READ_FILE_OPS(name)                                     \
         DEBUGFS_READ_FUNC(name);                                        \
 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
         .read = iwl_dbgfs_##name##_read,                                \
-        .open = iwl_dbgfs_open_file_generic,                            \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
@@ -1916,7 +1910,7 @@ static const struct file_operations iwl_dbgfs_##name##_ops = {		\
         DEBUGFS_WRITE_FUNC(name);                                       \
 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
         .write = iwl_dbgfs_##name##_write,                              \
-        .open = iwl_dbgfs_open_file_generic,                            \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
@@ -1926,7 +1920,7 @@ static const struct file_operations iwl_dbgfs_##name##_ops = {          \
 static const struct file_operations iwl_dbgfs_##name##_ops = {          \
         .write = iwl_dbgfs_##name##_write,                              \
         .read = iwl_dbgfs_##name##_read,                                \
-        .open = iwl_dbgfs_open_file_generic,                            \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
diff --git a/drivers/net/wireless/iwmc3200wifi/debugfs.c b/drivers/net/wireless/iwmc3200wifi/debugfs.c
index 87eef5773a02..b6199d124bb9 100644
--- a/drivers/net/wireless/iwmc3200wifi/debugfs.c
+++ b/drivers/net/wireless/iwmc3200wifi/debugfs.c
@@ -99,12 +99,6 @@ DEFINE_SIMPLE_ATTRIBUTE(fops_iwm_dbg_modules,
                         iwm_debugfs_u32_read, iwm_debugfs_dbg_modules_write,
                         "%llu\n");
 
-static int iwm_generic_open(struct inode *inode, struct file *filp)
-{
-        filp->private_data = inode->i_private;
-        return 0;
-}
-
 
 static ssize_t iwm_debugfs_txq_read(struct file *filp, char __user *buffer,
                                    size_t count, loff_t *ppos)
@@ -401,28 +395,28 @@ out:
 
 static const struct file_operations iwm_debugfs_txq_fops = {
         .owner =        THIS_MODULE,
-        .open =         iwm_generic_open,
+        .open =         simple_open,
         .read =         iwm_debugfs_txq_read,
         .llseek =       default_llseek,
 };
 
 static const struct file_operations iwm_debugfs_tx_credit_fops = {
         .owner =        THIS_MODULE,
-        .open =         iwm_generic_open,
+        .open =         simple_open,
         .read =         iwm_debugfs_tx_credit_read,
         .llseek =       default_llseek,
 };
 
 static const struct file_operations iwm_debugfs_rx_ticket_fops = {
         .owner =        THIS_MODULE,
-        .open =         iwm_generic_open,
+        .open =         simple_open,
         .read =         iwm_debugfs_rx_ticket_read,
         .llseek =       default_llseek,
 };
 
 static const struct file_operations iwm_debugfs_fw_err_fops = {
         .owner =        THIS_MODULE,
-        .open =         iwm_generic_open,
+        .open =         simple_open,
         .read =         iwm_debugfs_fw_err_read,
         .llseek =       default_llseek,
 };
diff --git a/drivers/net/wireless/iwmc3200wifi/sdio.c b/drivers/net/wireless/iwmc3200wifi/sdio.c
index 764b40dd24ad..0042f204b07f 100644
--- a/drivers/net/wireless/iwmc3200wifi/sdio.c
+++ b/drivers/net/wireless/iwmc3200wifi/sdio.c
@@ -264,13 +264,6 @@ static int if_sdio_send_chunk(struct iwm_priv *iwm, u8 *buf, int count)
         return ret;
 }
 
-/* debugfs hooks */
-static int iwm_debugfs_sdio_open(struct inode *inode, struct file *filp)
-{
-        filp->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t iwm_debugfs_sdio_read(struct file *filp, char __user *buffer,
                                      size_t count, loff_t *ppos)
 {
@@ -363,7 +356,7 @@ err:
 
 static const struct file_operations iwm_debugfs_sdio_fops = {
         .owner =        THIS_MODULE,
-        .open =         iwm_debugfs_sdio_open,
+        .open =         simple_open,
         .read =         iwm_debugfs_sdio_read,
         .llseek =       default_llseek,
 };
diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index c192671610fc..a06cc283e23d 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -21,12 +21,6 @@ static char *szStates[] = {
 static void lbs_debug_init(struct lbs_private *priv);
 #endif
 
-static int open_file_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t write_file_dummy(struct file *file, const char __user *buf,
                                 size_t count, loff_t *ppos)
 {
@@ -696,7 +690,7 @@ out_unlock:
 
 #define FOPS(fread, fwrite) { \
         .owner = THIS_MODULE, \
-        .open = open_file_generic, \
+        .open = simple_open, \
         .read = (fread), \
         .write = (fwrite), \
         .llseek = generic_file_llseek, \
@@ -962,7 +956,7 @@ static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
 
 static const struct file_operations lbs_debug_fops = {
         .owner = THIS_MODULE,
-        .open = open_file_generic,
+        .open = simple_open,
         .write = lbs_debugfs_write,
         .read = lbs_debugfs_read,
         .llseek = default_llseek,
diff --git a/drivers/net/wireless/mwifiex/debugfs.c b/drivers/net/wireless/mwifiex/debugfs.c
index d26a78b6b3c4..1a845074c52a 100644
--- a/drivers/net/wireless/mwifiex/debugfs.c
+++ b/drivers/net/wireless/mwifiex/debugfs.c
@@ -140,18 +140,6 @@ static struct mwifiex_debug_data items[] = {
 static int num_of_items = ARRAY_SIZE(items);
 
 /*
- * Generic proc file open handler.
- *
- * This function is called every time a file is accessed for read or write.
- */
-static int
-mwifiex_open_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
-/*
  * Proc info file read handler.
  *
  * This function is called when the 'info' file is opened for reading.
@@ -676,19 +664,19 @@ done:
 static const struct file_operations mwifiex_dfs_##name##_fops = {       \
         .read = mwifiex_##name##_read,                                  \
         .write = mwifiex_##name##_write,                                \
-        .open = mwifiex_open_generic,                                   \
+        .open = simple_open,                                            \
 };
 
 #define MWIFIEX_DFS_FILE_READ_OPS(name)                                 \
 static const struct file_operations mwifiex_dfs_##name##_fops = {       \
         .read = mwifiex_##name##_read,                                  \
-        .open = mwifiex_open_generic,                                   \
+        .open = simple_open,                                            \
 };
 
 #define MWIFIEX_DFS_FILE_WRITE_OPS(name)                                \
 static const struct file_operations mwifiex_dfs_##name##_fops = {       \
         .write = mwifiex_##name##_write,                                \
-        .open = mwifiex_open_generic,                                   \
+        .open = simple_open,                                            \
 };
 
 
diff --git a/drivers/net/wireless/wl1251/debugfs.c b/drivers/net/wireless/wl1251/debugfs.c
index 6c274007d200..448da1f8c22f 100644
--- a/drivers/net/wireless/wl1251/debugfs.c
+++ b/drivers/net/wireless/wl1251/debugfs.c
@@ -47,7 +47,7 @@ static ssize_t name## _read(struct file *file, char __user *userbuf,	\
                                                                         \
 static const struct file_operations name## _ops = {                     \
         .read = name## _read,                                           \
-        .open = wl1251_open_file_generic,                               \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
@@ -84,7 +84,7 @@ static ssize_t sub## _ ##name## _read(struct file *file,		\
                                                                         \
 static const struct file_operations sub## _ ##name## _ops = {           \
         .read = sub## _ ##name## _read,                                 \
-        .open = wl1251_open_file_generic,                               \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
@@ -117,12 +117,6 @@ out:
         mutex_unlock(&wl->mutex);
 }
 
-static int wl1251_open_file_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, 20, "%u");
 
 DEBUGFS_FWSTATS_FILE(rx, out_of_mem, 20, "%u");
@@ -235,7 +229,7 @@ static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
 
 static const struct file_operations tx_queue_len_ops = {
         .read = tx_queue_len_read,
-        .open = wl1251_open_file_generic,
+        .open = simple_open,
         .llseek = generic_file_llseek,
 };
 
@@ -257,7 +251,7 @@ static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf,
 
 static const struct file_operations tx_queue_status_ops = {
         .read = tx_queue_status_read,
-        .open = wl1251_open_file_generic,
+        .open = simple_open,
         .llseek = generic_file_llseek,
 };
 
diff --git a/drivers/net/wireless/wl12xx/debugfs.c b/drivers/net/wireless/wl12xx/debugfs.c
index e1cf72765965..564d49575c94 100644
--- a/drivers/net/wireless/wl12xx/debugfs.c
+++ b/drivers/net/wireless/wl12xx/debugfs.c
@@ -63,7 +63,7 @@ static ssize_t name## _read(struct file *file, char __user *userbuf,	\
                                                                         \
 static const struct file_operations name## _ops = {                     \
         .read = name## _read,                                           \
-        .open = wl1271_open_file_generic,                               \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
@@ -96,7 +96,7 @@ static ssize_t sub## _ ##name## _read(struct file *file,		\
                                                                         \
 static const struct file_operations sub## _ ##name## _ops = {           \
         .read = sub## _ ##name## _read,                                 \
-        .open = wl1271_open_file_generic,                               \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
@@ -126,12 +126,6 @@ out:
         mutex_unlock(&wl->mutex);
 }
 
-static int wl1271_open_file_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 DEBUGFS_FWSTATS_FILE(tx, internal_desc_overflow, "%u");
 
 DEBUGFS_FWSTATS_FILE(rx, out_of_mem, "%u");
@@ -243,7 +237,7 @@ static ssize_t tx_queue_len_read(struct file *file, char __user *userbuf,
 
 static const struct file_operations tx_queue_len_ops = {
         .read = tx_queue_len_read,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -289,7 +283,7 @@ static ssize_t gpio_power_write(struct file *file,
 static const struct file_operations gpio_power_ops = {
         .read = gpio_power_read,
         .write = gpio_power_write,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -308,7 +302,7 @@ static ssize_t start_recovery_write(struct file *file,
 
 static const struct file_operations start_recovery_ops = {
         .write = start_recovery_write,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -372,7 +366,7 @@ out:
 static const struct file_operations dynamic_ps_timeout_ops = {
         .read = dynamic_ps_timeout_read,
         .write = dynamic_ps_timeout_write,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -441,7 +435,7 @@ out:
 static const struct file_operations forced_ps_ops = {
         .read = forced_ps_read,
         .write = forced_ps_write,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -483,7 +477,7 @@ static ssize_t split_scan_timeout_write(struct file *file,
 static const struct file_operations split_scan_timeout_ops = {
         .read = split_scan_timeout_read,
         .write = split_scan_timeout_write,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -566,7 +560,7 @@ static ssize_t driver_state_read(struct file *file, char __user *user_buf,
 
 static const struct file_operations driver_state_ops = {
         .read = driver_state_read,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -675,7 +669,7 @@ static ssize_t vifs_state_read(struct file *file, char __user *user_buf,
 
 static const struct file_operations vifs_state_ops = {
         .read = vifs_state_read,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -733,7 +727,7 @@ static ssize_t dtim_interval_write(struct file *file,
 static const struct file_operations dtim_interval_ops = {
         .read = dtim_interval_read,
         .write = dtim_interval_write,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -791,7 +785,7 @@ static ssize_t suspend_dtim_interval_write(struct file *file,
 static const struct file_operations suspend_dtim_interval_ops = {
         .read = suspend_dtim_interval_read,
         .write = suspend_dtim_interval_write,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -849,7 +843,7 @@ static ssize_t beacon_interval_write(struct file *file,
 static const struct file_operations beacon_interval_ops = {
         .read = beacon_interval_read,
         .write = beacon_interval_write,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -904,7 +898,7 @@ static ssize_t rx_streaming_interval_read(struct file *file,
 static const struct file_operations rx_streaming_interval_ops = {
         .read = rx_streaming_interval_read,
         .write = rx_streaming_interval_write,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -959,7 +953,7 @@ static ssize_t rx_streaming_always_read(struct file *file,
 static const struct file_operations rx_streaming_always_ops = {
         .read = rx_streaming_always_read,
         .write = rx_streaming_always_write,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
@@ -1003,7 +997,7 @@ out:
 
 static const struct file_operations beacon_filtering_ops = {
         .write = beacon_filtering_write,
-        .open = wl1271_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index ee8fd037bb53..849357c1045c 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -117,25 +117,17 @@ static ssize_t ulong_write_file(struct file *file, char const __user *buf, size_
 }
 
 
-static int default_open(struct inode *inode, struct file *filp)
-{
-        if (inode->i_private)
-                filp->private_data = inode->i_private;
-        return 0;
-}
-
-
 static const struct file_operations ulong_fops = {
         .read           = ulong_read_file,
         .write          = ulong_write_file,
-        .open           = default_open,
+        .open           = simple_open,
         .llseek         = default_llseek,
 };
 
 
 static const struct file_operations ulong_ro_fops = {
         .read           = ulong_read_file,
-        .open           = default_open,
+        .open           = simple_open,
         .llseek         = default_llseek,
 };
 
@@ -187,7 +179,7 @@ static ssize_t atomic_read_file(struct file *file, char __user *buf, size_t coun
 
 static const struct file_operations atomic_ro_fops = {
         .read           = atomic_read_file,
-        .open           = default_open,
+        .open           = simple_open,
         .llseek         = default_llseek,
 };
 
diff --git a/drivers/remoteproc/remoteproc_debugfs.c b/drivers/remoteproc/remoteproc_debugfs.c
index 70277a530133..85d31a69e117 100644
--- a/drivers/remoteproc/remoteproc_debugfs.c
+++ b/drivers/remoteproc/remoteproc_debugfs.c
@@ -50,16 +50,9 @@ static ssize_t rproc_trace_read(struct file *filp, char __user *userbuf,
         return simple_read_from_buffer(userbuf, count, ppos, trace->va, len);
 }
 
-static int rproc_open_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-
-        return 0;
-}
-
 static const struct file_operations trace_rproc_ops = {
         .read = rproc_trace_read,
-        .open = rproc_open_generic,
+        .open = simple_open,
         .llseek = generic_file_llseek,
 };
 
@@ -94,7 +87,7 @@ static ssize_t rproc_state_read(struct file *filp, char __user *userbuf,
 
 static const struct file_operations rproc_state_ops = {
         .read = rproc_state_read,
-        .open = rproc_open_generic,
+        .open = simple_open,
         .llseek = generic_file_llseek,
 };
 
@@ -114,7 +107,7 @@ static ssize_t rproc_name_read(struct file *filp, char __user *userbuf,
 
 static const struct file_operations rproc_name_ops = {
         .read = rproc_name_read,
-        .open = rproc_open_generic,
+        .open = simple_open,
         .llseek = generic_file_llseek,
 };
 
diff --git a/drivers/rtc/rtc-88pm860x.c b/drivers/rtc/rtc-88pm860x.c
index afee0e8ae714..feddefc42109 100644
--- a/drivers/rtc/rtc-88pm860x.c
+++ b/drivers/rtc/rtc-88pm860x.c
@@ -72,9 +72,9 @@ static int pm860x_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
         struct pm860x_rtc_info *info = dev_get_drvdata(dev);
 
         if (enabled)
-                pm860x_set_bits(info->i2c, PM8607_RTC1, ALARM, ALARM);
+                pm860x_set_bits(info->i2c, PM8607_RTC1, ALARM_EN, ALARM_EN);
         else
-                pm860x_set_bits(info->i2c, PM8607_RTC1, ALARM, 0);
+                pm860x_set_bits(info->i2c, PM8607_RTC1, ALARM_EN, 0);
         return 0;
 }
 
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 5bdf2eecb178..af04b0d6688d 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -997,13 +997,6 @@ lpfc_debugfs_dumpDataDif_write(struct file *file, const char __user *buf,
         return nbytes;
 }
 
-static int
-lpfc_debugfs_dif_err_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t
 lpfc_debugfs_dif_err_read(struct file *file, char __user *buf,
         size_t nbytes, loff_t *ppos)
@@ -3541,7 +3534,7 @@ static const struct file_operations lpfc_debugfs_op_dumpDif = {
 #undef lpfc_debugfs_op_dif_err
 static const struct file_operations lpfc_debugfs_op_dif_err = {
         .owner =        THIS_MODULE,
-        .open =         lpfc_debugfs_dif_err_open,
+        .open =         simple_open,
         .llseek =       lpfc_debugfs_lseek,
         .read =         lpfc_debugfs_dif_err_read,
         .write =        lpfc_debugfs_dif_err_write,
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 082458d73ce9..d1a495f64e2d 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -63,12 +63,6 @@ struct chip_data {
 };
 
 #ifdef CONFIG_DEBUG_FS
-static int spi_show_regs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 #define SPI_REGS_BUFSIZE        1024
 static ssize_t  spi_show_regs(struct file *file, char __user *user_buf,
                                 size_t count, loff_t *ppos)
@@ -128,7 +122,7 @@ static ssize_t  spi_show_regs(struct file *file, char __user *user_buf,
 
 static const struct file_operations mrst_spi_regs_ops = {
         .owner          = THIS_MODULE,
-        .open           = spi_show_regs_open,
+        .open           = simple_open,
         .read           = spi_show_regs,
         .llseek         = default_llseek,
 };
diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c
index a9234ba8f8d5..c4b50af46c44 100644
--- a/drivers/tty/serial/mfd.c
+++ b/drivers/tty/serial/mfd.c
@@ -127,11 +127,6 @@ static inline void serial_out(struct uart_hsu_port *up, int offset, int value)
 
 #define HSU_REGS_BUFSIZE        1024
 
-static int hsu_show_regs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
 
 static ssize_t port_show_regs(struct file *file, char __user *user_buf,
                                 size_t count, loff_t *ppos)
@@ -231,14 +226,14 @@ static ssize_t dma_show_regs(struct file *file, char __user *user_buf,
 
 static const struct file_operations port_regs_ops = {
         .owner          = THIS_MODULE,
-        .open           = hsu_show_regs_open,
+        .open           = simple_open,
         .read           = port_show_regs,
         .llseek         = default_llseek,
 };
 
 static const struct file_operations dma_regs_ops = {
         .owner          = THIS_MODULE,
-        .open           = hsu_show_regs_open,
+        .open           = simple_open,
         .read           = dma_show_regs,
         .llseek         = default_llseek,
 };
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index e825460478be..08b9962b8fda 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -304,11 +304,7 @@ static const int trigger_level_1[4] = { 1, 1, 1, 1 };
 #ifdef CONFIG_DEBUG_FS
 
 #define PCH_REGS_BUFSIZE        1024
-static int pch_show_regs_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
+
 
 static ssize_t port_show_regs(struct file *file, char __user *user_buf,
                                 size_t count, loff_t *ppos)
@@ -362,7 +358,7 @@ static ssize_t port_show_regs(struct file *file, char __user *user_buf,
 
 static const struct file_operations port_regs_ops = {
         .owner          = THIS_MODULE,
-        .open           = pch_show_regs_open,
+        .open           = simple_open,
         .read           = port_show_regs,
         .llseek         = default_llseek,
 };
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 136e86faa1e1..05728894a88c 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -327,7 +327,7 @@ static void send_sig_all(int sig)
                 if (is_global_init(p))
                         continue;
 
-                force_sig(sig, p);
+                do_send_sig_info(sig, SEND_SIG_FORCED, p, true);
         }
         read_unlock(&tasklist_lock);
 }
diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c
index cefa0c8b5b6a..d2b9af59cba9 100644
--- a/drivers/usb/core/inode.c
+++ b/drivers/usb/core/inode.c
@@ -428,18 +428,10 @@ static loff_t default_file_lseek (struct file *file, loff_t offset, int orig)
         return retval;
 }
 
-static int default_open (struct inode *inode, struct file *file)
-{
-        if (inode->i_private)
-                file->private_data = inode->i_private;
-
-        return 0;
-}
-
 static const struct file_operations default_file_operations = {
         .read =         default_read_file,
         .write =        default_write_file,
-        .open =         default_open,
+        .open =         simple_open,
         .llseek =       default_file_lseek,
 };
 
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index fd9109d7eb0e..680e1a31fb87 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -352,7 +352,6 @@ static int debug_async_open(struct inode *, struct file *);
 static int debug_periodic_open(struct inode *, struct file *);
 static int debug_registers_open(struct inode *, struct file *);
 static int debug_async_open(struct inode *, struct file *);
-static int debug_lpm_open(struct inode *, struct file *);
 static ssize_t debug_lpm_read(struct file *file, char __user *user_buf,
                                    size_t count, loff_t *ppos);
 static ssize_t debug_lpm_write(struct file *file, const char __user *buffer,
@@ -385,7 +384,7 @@ static const struct file_operations debug_registers_fops = {
 };
 static const struct file_operations debug_lpm_fops = {
         .owner          = THIS_MODULE,
-        .open           = debug_lpm_open,
+        .open           = simple_open,
         .read           = debug_lpm_read,
         .write          = debug_lpm_write,
         .release        = debug_lpm_close,
@@ -970,12 +969,6 @@ static int debug_registers_open(struct inode *inode, struct file *file)
         return file->private_data ? 0 : -ENOMEM;
 }
 
-static int debug_lpm_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static int debug_lpm_close(struct inode *inode, struct file *file)
 {
         return 0;
diff --git a/drivers/uwb/uwb-debug.c b/drivers/uwb/uwb-debug.c
index 2eecec0c13c9..6ec45beb7af5 100644
--- a/drivers/uwb/uwb-debug.c
+++ b/drivers/uwb/uwb-debug.c
@@ -159,13 +159,6 @@ static int cmd_ie_rm(struct uwb_rc *rc, struct uwb_dbg_cmd_ie *ie_to_rm)
         return uwb_rc_ie_rm(rc, ie_to_rm->data[0]);
 }
 
-static int command_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-
-        return 0;
-}
-
 static ssize_t command_write(struct file *file, const char __user *buf,
                          size_t len, loff_t *off)
 {
@@ -206,7 +199,7 @@ static ssize_t command_write(struct file *file, const char __user *buf,
 }
 
 static const struct file_operations command_fops = {
-        .open   = command_open,
+        .open   = simple_open,
         .write  = command_write,
         .read   = NULL,
         .llseek = no_llseek,
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 7ed9991fa747..af16884491ed 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -245,6 +245,12 @@ config BACKLIGHT_DA903X
           If you have a LCD backlight connected to the WLED output of DA9030
           or DA9034 WLED output, say Y here to enable this driver.
 
+config BACKLIGHT_DA9052
+        tristate "Dialog DA9052/DA9053 WLED"
+        depends on PMIC_DA9052
+        help
+          Enable the Backlight Driver for DA9052-BC and DA9053-AA/Bx PMICs.
+
 config BACKLIGHT_MAX8925
         tristate "Backlight driver for MAX8925"
         depends on MFD_MAX8925
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index 8071eb656147..36855ae887d6 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -29,6 +29,7 @@ obj-$(CONFIG_BACKLIGHT_PROGEAR) += progear_bl.o
 obj-$(CONFIG_BACKLIGHT_CARILLO_RANCH) += cr_bllcd.o
 obj-$(CONFIG_BACKLIGHT_PWM)     += pwm_bl.o
 obj-$(CONFIG_BACKLIGHT_DA903X)  += da903x_bl.o
+obj-$(CONFIG_BACKLIGHT_DA9052)  += da9052_bl.o
 obj-$(CONFIG_BACKLIGHT_MAX8925) += max8925_bl.o
 obj-$(CONFIG_BACKLIGHT_APPLE)   += apple_bl.o
 obj-$(CONFIG_BACKLIGHT_TOSA)    += tosa_bl.o
diff --git a/drivers/video/backlight/da9052_bl.c b/drivers/video/backlight/da9052_bl.c
new file mode 100644
index 000000000000..b628d68f5162
--- /dev/null
+++ b/drivers/video/backlight/da9052_bl.c
@@ -0,0 +1,187 @@
+/*
+ * Backlight Driver for Dialog DA9052 PMICs
+ *
+ * Copyright(c) 2012 Dialog Semiconductor Ltd.
+ *
+ * Author: David Dajun Chen <dchen@diasemi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+#include <linux/backlight.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <linux/mfd/da9052/da9052.h>
+#include <linux/mfd/da9052/reg.h>
+
+#define DA9052_MAX_BRIGHTNESS           0xFF
+
+enum {
+        DA9052_WLEDS_OFF,
+        DA9052_WLEDS_ON,
+};
+
+enum {
+        DA9052_TYPE_WLED1,
+        DA9052_TYPE_WLED2,
+        DA9052_TYPE_WLED3,
+};
+
+static unsigned char wled_bank[] = {
+        DA9052_LED1_CONF_REG,
+        DA9052_LED2_CONF_REG,
+        DA9052_LED3_CONF_REG,
+};
+
+struct da9052_bl {
+        struct da9052 *da9052;
+        uint brightness;
+        uint state;
+        uint led_reg;
+};
+
+static int da9052_adjust_wled_brightness(struct da9052_bl *wleds)
+{
+        unsigned char boost_en;
+        unsigned char i_sink;
+        int ret;
+
+        boost_en = 0x3F;
+        i_sink = 0xFF;
+        if (wleds->state == DA9052_WLEDS_OFF) {
+                boost_en = 0x00;
+                i_sink = 0x00;
+        }
+
+        ret = da9052_reg_write(wleds->da9052, DA9052_BOOST_REG, boost_en);
+        if (ret < 0)
+                return ret;
+
+        ret = da9052_reg_write(wleds->da9052, DA9052_LED_CONT_REG, i_sink);
+        if (ret < 0)
+                return ret;
+
+        ret = da9052_reg_write(wleds->da9052, wled_bank[wleds->led_reg], 0x0);
+        if (ret < 0)
+                return ret;
+
+        msleep(10);
+
+        if (wleds->brightness) {
+                ret = da9052_reg_write(wleds->da9052, wled_bank[wleds->led_reg],
+                                       wleds->brightness);
+                if (ret < 0)
+                        return ret;
+        }
+
+        return 0;
+}
+
+static int da9052_backlight_update_status(struct backlight_device *bl)
+{
+        int brightness = bl->props.brightness;
+        struct da9052_bl *wleds = bl_get_data(bl);
+
+        wleds->brightness = brightness;
+        wleds->state = DA9052_WLEDS_ON;
+
+        return da9052_adjust_wled_brightness(wleds);
+}
+
+static int da9052_backlight_get_brightness(struct backlight_device *bl)
+{
+        struct da9052_bl *wleds = bl_get_data(bl);
+
+        return wleds->brightness;
+}
+
+static const struct backlight_ops da9052_backlight_ops = {
+        .update_status = da9052_backlight_update_status,
+        .get_brightness = da9052_backlight_get_brightness,
+};
+
+static int da9052_backlight_probe(struct platform_device *pdev)
+{
+        struct backlight_device *bl;
+        struct backlight_properties props;
+        struct da9052_bl *wleds;
+
+        wleds = devm_kzalloc(&pdev->dev, sizeof(struct da9052_bl), GFP_KERNEL);
+        if (!wleds)
+                return -ENOMEM;
+
+        wleds->da9052 = dev_get_drvdata(pdev->dev.parent);
+        wleds->brightness = 0;
+        wleds->led_reg = platform_get_device_id(pdev)->driver_data;
+        wleds->state = DA9052_WLEDS_OFF;
+
+        props.type = BACKLIGHT_RAW;
+        props.max_brightness = DA9052_MAX_BRIGHTNESS;
+
+        bl = backlight_device_register(pdev->name, wleds->da9052->dev, wleds,
+                                       &da9052_backlight_ops, &props);
+        if (IS_ERR(bl)) {
+                dev_err(&pdev->dev, "Failed to register backlight\n");
+                devm_kfree(&pdev->dev, wleds);
+                return PTR_ERR(bl);
+        }
+
+        bl->props.max_brightness = DA9052_MAX_BRIGHTNESS;
+        bl->props.brightness = 0;
+        platform_set_drvdata(pdev, bl);
+
+        return da9052_adjust_wled_brightness(wleds);
+}
+
+static int da9052_backlight_remove(struct platform_device *pdev)
+{
+        struct backlight_device *bl = platform_get_drvdata(pdev);
+        struct da9052_bl *wleds = bl_get_data(bl);
+
+        wleds->brightness = 0;
+        wleds->state = DA9052_WLEDS_OFF;
+        da9052_adjust_wled_brightness(wleds);
+        backlight_device_unregister(bl);
+        devm_kfree(&pdev->dev, wleds);
+
+        return 0;
+}
+
+static struct platform_device_id da9052_wled_ids[] = {
+        {
+                .name           = "da9052-wled1",
+                .driver_data    = DA9052_TYPE_WLED1,
+        },
+        {
+                .name           = "da9052-wled2",
+                .driver_data    = DA9052_TYPE_WLED2,
+        },
+        {
+                .name           = "da9052-wled3",
+                .driver_data    = DA9052_TYPE_WLED3,
+        },
+};
+
+static struct platform_driver da9052_wled_driver = {
+        .probe          = da9052_backlight_probe,
+        .remove         = da9052_backlight_remove,
+        .id_table       = da9052_wled_ids,
+        .driver = {
+                .name   = "da9052-wled",
+                .owner  = THIS_MODULE,
+        },
+};
+
+module_platform_driver(da9052_wled_driver);
+
+MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
+MODULE_DESCRIPTION("Backlight driver for DA9052 PMIC");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9052-backlight");
diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c
index 21e93605161c..5dfafdd1dbd3 100644
--- a/fs/debugfs/file.c
+++ b/fs/debugfs/file.c
@@ -33,18 +33,10 @@ static ssize_t default_write_file(struct file *file, const char __user *buf,
         return count;
 }
 
-static int default_open(struct inode *inode, struct file *file)
-{
-        if (inode->i_private)
-                file->private_data = inode->i_private;
-
-        return 0;
-}
-
 const struct file_operations debugfs_file_operations = {
         .read =         default_read_file,
         .write =        default_write_file,
-        .open =         default_open,
+        .open =         simple_open,
         .llseek =       noop_llseek,
 };
 
@@ -447,7 +439,7 @@ static ssize_t write_file_bool(struct file *file, const char __user *user_buf,
 static const struct file_operations fops_bool = {
         .read =         read_file_bool,
         .write =        write_file_bool,
-        .open =         default_open,
+        .open =         simple_open,
         .llseek =       default_llseek,
 };
 
@@ -492,7 +484,7 @@ static ssize_t read_file_blob(struct file *file, char __user *user_buf,
 
 static const struct file_operations fops_blob = {
         .read =         read_file_blob,
-        .open =         default_open,
+        .open =         simple_open,
         .llseek =       default_llseek,
 };
 
diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c
index 3dca2b39e83f..1c9b08095f98 100644
--- a/fs/dlm/debug_fs.c
+++ b/fs/dlm/debug_fs.c
@@ -609,13 +609,6 @@ static const struct file_operations format3_fops = {
 /*
  * dump lkb's on the ls_waiters list
  */
-
-static int waiters_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t waiters_read(struct file *file, char __user *userbuf,
                             size_t count, loff_t *ppos)
 {
@@ -644,7 +637,7 @@ static ssize_t waiters_read(struct file *file, char __user *userbuf,
 
 static const struct file_operations waiters_fops = {
         .owner   = THIS_MODULE,
-        .open    = waiters_open,
+        .open    = simple_open,
         .read    = waiters_read,
         .llseek  = default_llseek,
 };
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index ea251749d9d5..28cf06e4ec84 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -1031,7 +1031,6 @@ static int __init init_hugetlbfs_fs(void)
         }
 
         error = PTR_ERR(vfsmount);
-        unregister_filesystem(&hugetlbfs_fs_type);
 
  out:
         kmem_cache_destroy(hugetlbfs_inode_cachep);
diff --git a/fs/libfs.c b/fs/libfs.c
index 4a0d1f06da57..358094f0433d 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -264,6 +264,13 @@ Enomem:
         return ERR_PTR(-ENOMEM);
 }
 
+int simple_open(struct inode *inode, struct file *file)
+{
+        if (inode->i_private)
+                file->private_data = inode->i_private;
+        return 0;
+}
+
 int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
 {
         struct inode *inode = old_dentry->d_inode;
@@ -984,6 +991,7 @@ EXPORT_SYMBOL(simple_dir_operations);
 EXPORT_SYMBOL(simple_empty);
 EXPORT_SYMBOL(simple_fill_super);
 EXPORT_SYMBOL(simple_getattr);
+EXPORT_SYMBOL(simple_open);
 EXPORT_SYMBOL(simple_link);
 EXPORT_SYMBOL(simple_lookup);
 EXPORT_SYMBOL(simple_pin_fs);
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 46a15d8a29ca..eed44bfc85db 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -115,12 +115,13 @@ static struct dentry *proc_mount(struct file_system_type *fs_type,
         if (IS_ERR(sb))
                 return ERR_CAST(sb);
 
+        if (!proc_parse_options(options, ns)) {
+                deactivate_locked_super(sb);
+                return ERR_PTR(-EINVAL);
+        }
+
         if (!sb->s_root) {
                 sb->s_flags = flags;
-                if (!proc_parse_options(options, ns)) {
-                        deactivate_locked_super(sb);
-                        return ERR_PTR(-EINVAL);
-                }
                 err = proc_fill_super(sb);
                 if (err) {
                         deactivate_locked_super(sb);
diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index 50952c9bd06c..19507889bb7f 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -52,12 +52,6 @@ struct pstore_private {
         char    data[];
 };
 
-static int pstore_file_open(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t pstore_file_read(struct file *file, char __user *userbuf,
                                                 size_t count, loff_t *ppos)
 {
@@ -67,7 +61,7 @@ static ssize_t pstore_file_read(struct file *file, char __user *userbuf,
 }
 
 static const struct file_operations pstore_file_operations = {
-        .open   = pstore_file_open,
+        .open   = simple_open,
         .read   = pstore_file_read,
         .llseek = default_llseek,
 };
diff --git a/fs/xattr.c b/fs/xattr.c
index d6dfd247bb2f..3c8c1cc333c7 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -19,8 +19,9 @@
 #include <linux/export.h>
 #include <linux/fsnotify.h>
 #include <linux/audit.h>
-#include <asm/uaccess.h>
+#include <linux/vmalloc.h>
 
+#include <asm/uaccess.h>
 
 /*
  * Check permissions for extended attribute access.  This is a bit complicated
@@ -320,6 +321,7 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value,
 {
         int error;
         void *kvalue = NULL;
+        void *vvalue = NULL;    /* If non-NULL, we used vmalloc() */
         char kname[XATTR_NAME_MAX + 1];
 
         if (flags & ~(XATTR_CREATE|XATTR_REPLACE))
@@ -334,13 +336,25 @@ setxattr(struct dentry *d, const char __user *name, const void __user *value,
         if (size) {
                 if (size > XATTR_SIZE_MAX)
                         return -E2BIG;
-                kvalue = memdup_user(value, size);
-                if (IS_ERR(kvalue))
-                        return PTR_ERR(kvalue);
+                kvalue = kmalloc(size, GFP_KERNEL | __GFP_NOWARN);
+                if (!kvalue) {
+                        vvalue = vmalloc(size);
+                        if (!vvalue)
+                                return -ENOMEM;
+                        kvalue = vvalue;
+                }
+                if (copy_from_user(kvalue, value, size)) {
+                        error = -EFAULT;
+                        goto out;
+                }
         }
 
         error = vfs_setxattr(d, kname, kvalue, size, flags);
-        kfree(kvalue);
+out:
+        if (vvalue)
+                vfree(vvalue);
+        else
+                kfree(kvalue);
         return error;
 }
 
@@ -492,13 +506,18 @@ listxattr(struct dentry *d, char __user *list, size_t size)
 {
         ssize_t error;
         char *klist = NULL;
+        char *vlist = NULL;     /* If non-NULL, we used vmalloc() */
 
         if (size) {
                 if (size > XATTR_LIST_MAX)
                         size = XATTR_LIST_MAX;
-                klist = kmalloc(size, GFP_KERNEL);
-                if (!klist)
-                        return -ENOMEM;
+                klist = kmalloc(size, __GFP_NOWARN | GFP_KERNEL);
+                if (!klist) {
+                        vlist = vmalloc(size);
+                        if (!vlist)
+                                return -ENOMEM;
+                        klist = vlist;
+                }
         }
 
         error = vfs_listxattr(d, klist, size);
@@ -510,7 +529,10 @@ listxattr(struct dentry *d, char __user *list, size_t size)
                    than XATTR_LIST_MAX bytes. Not possible. */
                 error = -E2BIG;
         }
-        kfree(klist);
+        if (vlist)
+                vfree(vlist);
+        else
+                kfree(klist);
         return error;
 }
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 528611843ba0..8de675523e46 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2511,6 +2511,7 @@ extern int dcache_readdir(struct file *, void *, filldir_t);
 extern int simple_setattr(struct dentry *, struct iattr *);
 extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *);
 extern int simple_statfs(struct dentry *, struct kstatfs *);
+extern int simple_open(struct inode *inode, struct file *file);
 extern int simple_link(struct dentry *, struct inode *, struct dentry *);
 extern int simple_unlink(struct inode *, struct dentry *);
 extern int simple_rmdir(struct inode *, struct dentry *);
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 8dc0ea7caf02..b1fd5c7925fe 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -305,6 +305,13 @@ static inline int mem_cgroup_swappiness(struct mem_cgroup *mem)
         return vm_swappiness;
 }
 #endif
+#ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP
+extern void mem_cgroup_uncharge_swap(swp_entry_t ent);
+#else
+static inline void mem_cgroup_uncharge_swap(swp_entry_t ent)
+{
+}
+#endif
 #ifdef CONFIG_SWAP
 /* linux/mm/page_io.c */
 extern int swap_readpage(struct page *);
@@ -375,13 +382,6 @@ mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent, bool swapout)
 {
 }
 #endif
-#ifdef CONFIG_CGROUP_MEM_RES_CTLR_SWAP
-extern void mem_cgroup_uncharge_swap(swp_entry_t ent);
-#else
-static inline void mem_cgroup_uncharge_swap(swp_entry_t ent)
-{
-}
-#endif
 
 #else /* CONFIG_SWAP */
 
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index cdea7b56b0c9..c0bd0308741c 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -311,13 +311,6 @@ int blk_trace_remove(struct request_queue *q)
 }
 EXPORT_SYMBOL_GPL(blk_trace_remove);
 
-static int blk_dropped_open(struct inode *inode, struct file *filp)
-{
-        filp->private_data = inode->i_private;
-
-        return 0;
-}
-
 static ssize_t blk_dropped_read(struct file *filp, char __user *buffer,
                                 size_t count, loff_t *ppos)
 {
@@ -331,18 +324,11 @@ static ssize_t blk_dropped_read(struct file *filp, char __user *buffer,
 
 static const struct file_operations blk_dropped_fops = {
         .owner =        THIS_MODULE,
-        .open =         blk_dropped_open,
+        .open =         simple_open,
         .read =         blk_dropped_read,
         .llseek =       default_llseek,
 };
 
-static int blk_msg_open(struct inode *inode, struct file *filp)
-{
-        filp->private_data = inode->i_private;
-
-        return 0;
-}
-
 static ssize_t blk_msg_write(struct file *filp, const char __user *buffer,
                                 size_t count, loff_t *ppos)
 {
@@ -371,7 +357,7 @@ static ssize_t blk_msg_write(struct file *filp, const char __user *buffer,
 
 static const struct file_operations blk_msg_fops = {
         .owner =        THIS_MODULE,
-        .open =         blk_msg_open,
+        .open =         simple_open,
         .write =        blk_msg_write,
         .llseek =       noop_llseek,
 };
diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index cc5b7a6e7e0b..778e5916d7c3 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -15,12 +15,6 @@
 #include "rate.h"
 #include "debugfs.h"
 
-int mac80211_open_file_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 #define DEBUGFS_FORMAT_BUFFER_SIZE 100
 
 int mac80211_format_buffer(char __user *userbuf, size_t count,
@@ -50,7 +44,7 @@ static ssize_t name## _read(struct file *file, char __user *userbuf,	\
 #define DEBUGFS_READONLY_FILE_OPS(name)                 \
 static const struct file_operations name## _ops = {                     \
         .read = name## _read,                                           \
-        .open = mac80211_open_file_generic,                             \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
@@ -93,7 +87,7 @@ static ssize_t reset_write(struct file *file, const char __user *user_buf,
 
 static const struct file_operations reset_ops = {
         .write = reset_write,
-        .open = mac80211_open_file_generic,
+        .open = simple_open,
         .llseek = noop_llseek,
 };
 
@@ -254,7 +248,7 @@ static ssize_t stats_ ##name## _read(struct file *file,			\
                                                                         \
 static const struct file_operations stats_ ##name## _ops = {            \
         .read = stats_ ##name## _read,                                  \
-        .open = mac80211_open_file_generic,                             \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
diff --git a/net/mac80211/debugfs.h b/net/mac80211/debugfs.h
index 7c87529630f5..9be4e6d71d00 100644
--- a/net/mac80211/debugfs.h
+++ b/net/mac80211/debugfs.h
@@ -3,7 +3,6 @@
 
 #ifdef CONFIG_MAC80211_DEBUGFS
 extern void debugfs_hw_add(struct ieee80211_local *local);
-extern int mac80211_open_file_generic(struct inode *inode, struct file *file);
 extern int mac80211_format_buffer(char __user *userbuf, size_t count,
                                   loff_t *ppos, char *fmt, ...);
 #else
diff --git a/net/mac80211/debugfs_key.c b/net/mac80211/debugfs_key.c
index 59edcd95a58d..7932767bb482 100644
--- a/net/mac80211/debugfs_key.c
+++ b/net/mac80211/debugfs_key.c
@@ -30,7 +30,7 @@ static ssize_t key_##name##_read(struct file *file,			\
 #define KEY_OPS(name)                                                   \
 static const struct file_operations key_ ##name## _ops = {              \
         .read = key_##name##_read,                                      \
-        .open = mac80211_open_file_generic,                             \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 }
 
@@ -45,7 +45,7 @@ static const struct file_operations key_ ##name## _ops = {		\
 #define KEY_CONF_OPS(name)                                              \
 static const struct file_operations key_ ##name## _ops = {              \
         .read = key_conf_##name##_read,                                 \
-        .open = mac80211_open_file_generic,                             \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 }
 
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index a32eeda04aa3..30f99c344847 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -135,7 +135,7 @@ static ssize_t ieee80211_if_read_##name(struct file *file,		\
 static const struct file_operations name##_ops = {                      \
         .read = ieee80211_if_read_##name,                               \
         .write = (_write),                                              \
-        .open = mac80211_open_file_generic,                             \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 }
 
diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c
index 6d45804d09bc..832b2da5e4cd 100644
--- a/net/mac80211/debugfs_sta.c
+++ b/net/mac80211/debugfs_sta.c
@@ -33,7 +33,7 @@ static ssize_t sta_ ##name## _read(struct file *file,			\
 #define STA_OPS(name)                                                   \
 static const struct file_operations sta_ ##name## _ops = {              \
         .read = sta_##name##_read,                                      \
-        .open = mac80211_open_file_generic,                             \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 }
 
@@ -41,7 +41,7 @@ static const struct file_operations sta_ ##name## _ops = {		\
 static const struct file_operations sta_ ##name## _ops = {              \
         .read = sta_##name##_read,                                      \
         .write = sta_##name##_write,                                    \
-        .open = mac80211_open_file_generic,                             \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 }
 
diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index b4f7600a3e36..3313c117b322 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -145,7 +145,7 @@ static ssize_t rcname_read(struct file *file, char __user *userbuf,
 
 static const struct file_operations rcname_ops = {
         .read = rcname_read,
-        .open = mac80211_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 #endif
diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
index 39765bcfb472..920cabe0461b 100644
--- a/net/wireless/debugfs.c
+++ b/net/wireless/debugfs.c
@@ -13,12 +13,6 @@
 #include "core.h"
 #include "debugfs.h"
 
-static int cfg80211_open_file_generic(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 #define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...)              \
 static ssize_t name## _read(struct file *file, char __user *userbuf,    \
                             size_t count, loff_t *ppos)                 \
@@ -33,7 +27,7 @@ static ssize_t name## _read(struct file *file, char __user *userbuf,	\
                                                                         \
 static const struct file_operations name## _ops = {                     \
         .read = name## _read,                                           \
-        .open = cfg80211_open_file_generic,                             \
+        .open = simple_open,                                            \
         .llseek = generic_file_llseek,                                  \
 };
 
@@ -102,7 +96,7 @@ static ssize_t ht40allow_map_read(struct file *file,
 
 static const struct file_operations ht40allow_map_ops = {
         .read = ht40allow_map_read,
-        .open = cfg80211_open_file_generic,
+        .open = simple_open,
         .llseek = default_llseek,
 };
 
diff --git a/scripts/coccinelle/api/simple_open.cocci b/scripts/coccinelle/api/simple_open.cocci
new file mode 100644
index 000000000000..05962f7be155
--- /dev/null
+++ b/scripts/coccinelle/api/simple_open.cocci
@@ -0,0 +1,70 @@
+/// This removes an open coded simple_open() function
+/// and replaces file operations references to the function
+/// with simple_open() instead.
+///
+// Confidence: High
+// Comments:
+// Options: -no_includes -include_headers
+
+virtual patch
+virtual report
+
+@ open depends on patch @
+identifier open_f != simple_open;
+identifier i, f;
+@@
+-int open_f(struct inode *i, struct file *f)
+-{
+(
+-if (i->i_private)
+-f->private_data = i->i_private;
+|
+-f->private_data = i->i_private;
+)
+-return 0;
+-}
+
+@ has_open depends on open @
+identifier fops;
+identifier open.open_f;
+@@
+struct file_operations fops = {
+...,
+-.open = open_f,
++.open = simple_open,
+...
+};
+
+@ openr depends on report @
+identifier open_f != simple_open;
+identifier i, f;
+position p;
+@@
+int open_f@p(struct inode *i, struct file *f)
+{
+(
+if (i->i_private)
+f->private_data = i->i_private;
+|
+f->private_data = i->i_private;
+)
+return 0;
+}
+
+@ has_openr depends on openr @
+identifier fops;
+identifier openr.open_f;
+position p;
+@@
+struct file_operations fops = {
+...,
+.open = open_f@p,
+...
+};
+
+@script:python@
+pf << openr.p;
+ps << has_openr.p;
+@@
+
+coccilib.report.print_report(pf[0],"WARNING opportunity for simple_open, see also structure on line %s"%(ps[0].line))
diff --git a/sound/soc/imx/imx-audmux.c b/sound/soc/imx/imx-audmux.c
index 601df809a26a..1765a197acb0 100644
--- a/sound/soc/imx/imx-audmux.c
+++ b/sound/soc/imx/imx-audmux.c
@@ -40,12 +40,6 @@ static void __iomem *audmux_base;
 #ifdef CONFIG_DEBUG_FS
 static struct dentry *audmux_debugfs_root;
 
-static int audmux_open_file(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 /* There is an annoying discontinuity in the SSI numbering with regard
  * to the Linux number of the devices */
 static const char *audmux_port_string(int port)
@@ -142,7 +136,7 @@ static ssize_t audmux_read_file(struct file *file, char __user *user_buf,
 }
 
 static const struct file_operations audmux_debugfs_fops = {
-        .open = audmux_open_file,
+        .open = simple_open,
         .read = audmux_read_file,
         .llseek = default_llseek,
 };
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index a4deebc0801a..e19c24ade414 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -201,12 +201,6 @@ static ssize_t pmdown_time_set(struct device *dev,
 static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set);
 
 #ifdef CONFIG_DEBUG_FS
-static int codec_reg_open_file(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
                                    size_t count, loff_t *ppos)
 {
@@ -264,7 +258,7 @@ static ssize_t codec_reg_write_file(struct file *file,
 }
 
 static const struct file_operations codec_reg_fops = {
-        .open = codec_reg_open_file,
+        .open = simple_open,
         .read = codec_reg_read_file,
         .write = codec_reg_write_file,
         .llseek = default_llseek,
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 6241490fff30..5cbd2d7623b8 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1544,12 +1544,6 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event)
 }
 
 #ifdef CONFIG_DEBUG_FS
-static int dapm_widget_power_open_file(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t dapm_widget_power_read_file(struct file *file,
                                            char __user *user_buf,
                                            size_t count, loff_t *ppos)
@@ -1613,17 +1607,11 @@ static ssize_t dapm_widget_power_read_file(struct file *file,
 }
 
 static const struct file_operations dapm_widget_power_fops = {
-        .open = dapm_widget_power_open_file,
+        .open = simple_open,
         .read = dapm_widget_power_read_file,
         .llseek = default_llseek,
 };
 
-static int dapm_bias_open_file(struct inode *inode, struct file *file)
-{
-        file->private_data = inode->i_private;
-        return 0;
-}
-
 static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf,
                                    size_t count, loff_t *ppos)
 {
@@ -1654,7 +1642,7 @@ static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf,
 }
 
 static const struct file_operations dapm_bias_fops = {
-        .open = dapm_bias_open_file,
+        .open = simple_open,
         .read = dapm_bias_read_file,
         .llseek = default_llseek,
 };