llseek: automatically add .llseek fop

All file_operations should get a .llseek operation so we can make
nonseekable_open the default for future file operations without a
.llseek pointer.

The three cases that we can automatically detect are no_llseek, seq_lseek
and default_llseek. For cases where we can we can automatically prove that
the file offset is always ignored, we use noop_llseek, which maintains
the current behavior of not returning an error from a seek.

New drivers should normally not use noop_llseek but instead use no_llseek
and call nonseekable_open at open time.  Existing drivers can be converted
to do the same when the maintainer knows for certain that no user code
relies on calling seek on the device file.

The generated code is often incorrectly indented and right now contains
comments that clarify for each added line why a specific variant was
chosen. In the version that gets submitted upstream, the comments will
be gone and I will manually fix the indentation, because there does not
seem to be a way to do that using coccinelle.

Some amount of new code is currently sitting in linux-next that should get
the same modifications, which I will do at the end of the merge window.

Many thanks to Julia Lawall for helping me learn to write a semantic
patch that does all this.

===== begin semantic patch =====
// This adds an llseek= method to all file operations,
// as a preparation for making no_llseek the default.
//
// The rules are
// - use no_llseek explicitly if we do nonseekable_open
// - use seq_lseek for sequential files
// - use default_llseek if we know we access f_pos
// - use noop_llseek if we know we don't access f_pos,
//   but we still want to allow users to call lseek
//
@ open1 exists @
identifier nested_open;
@@
nested_open(...)
{
<+...
nonseekable_open(...)
...+>
}

@ open exists@
identifier open_f;
identifier i, f;
identifier open1.nested_open;
@@
int open_f(struct inode *i, struct file *f)
{
<+...
(
nonseekable_open(...)
|
nested_open(...)
)
...+>
}

@ read disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
<+...
(
   *off = E
|
   *off += E
|
   func(..., off, ...)
|
   E = *off
)
...+>
}

@ read_no_fpos disable optional_qualifier exists @
identifier read_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t read_f(struct file *f, char *p, size_t s, loff_t *off)
{
... when != off
}

@ write @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
expression E;
identifier func;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
<+...
(
  *off = E
|
  *off += E
|
  func(..., off, ...)
|
  E = *off
)
...+>
}

@ write_no_fpos @
identifier write_f;
identifier f, p, s, off;
type ssize_t, size_t, loff_t;
@@
ssize_t write_f(struct file *f, const char *p, size_t s, loff_t *off)
{
... when != off
}

@ fops0 @
identifier fops;
@@
struct file_operations fops = {
 ...
};

@ has_llseek depends on fops0 @
identifier fops0.fops;
identifier llseek_f;
@@
struct file_operations fops = {
...
 .llseek = llseek_f,
...
};

@ has_read depends on fops0 @
identifier fops0.fops;
identifier read_f;
@@
struct file_operations fops = {
...
 .read = read_f,
...
};

@ has_write depends on fops0 @
identifier fops0.fops;
identifier write_f;
@@
struct file_operations fops = {
...
 .write = write_f,
...
};

@ has_open depends on fops0 @
identifier fops0.fops;
identifier open_f;
@@
struct file_operations fops = {
...
 .open = open_f,
...
};

// use no_llseek if we call nonseekable_open
////////////////////////////////////////////
@ nonseekable1 depends on !has_llseek && has_open @
identifier fops0.fops;
identifier nso ~= "nonseekable_open";
@@
struct file_operations fops = {
...  .open = nso, ...
+.llseek = no_llseek, /* nonseekable */
};

@ nonseekable2 depends on !has_llseek @
identifier fops0.fops;
identifier open.open_f;
@@
struct file_operations fops = {
...  .open = open_f, ...
+.llseek = no_llseek, /* open uses nonseekable */
};

// use seq_lseek for sequential files
/////////////////////////////////////
@ seq depends on !has_llseek @
identifier fops0.fops;
identifier sr ~= "seq_read";
@@
struct file_operations fops = {
...  .read = sr, ...
+.llseek = seq_lseek, /* we have seq_read */
};

// use default_llseek if there is a readdir
///////////////////////////////////////////
@ fops1 depends on !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier readdir_e;
@@
// any other fop is used that changes pos
struct file_operations fops = {
... .readdir = readdir_e, ...
+.llseek = default_llseek, /* readdir is present */
};

// use default_llseek if at least one of read/write touches f_pos
/////////////////////////////////////////////////////////////////
@ fops2 depends on !fops1 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read.read_f;
@@
// read fops use offset
struct file_operations fops = {
... .read = read_f, ...
+.llseek = default_llseek, /* read accesses f_pos */
};

@ fops3 depends on !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write.write_f;
@@
// write fops use offset
struct file_operations fops = {
... .write = write_f, ...
+	.llseek = default_llseek, /* write accesses f_pos */
};

// Use noop_llseek if neither read nor write accesses f_pos
///////////////////////////////////////////////////////////

@ fops4 depends on !fops1 && !fops2 && !fops3 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
identifier write_no_fpos.write_f;
@@
// write fops use offset
struct file_operations fops = {
...
 .write = write_f,
 .read = read_f,
...
+.llseek = noop_llseek, /* read and write both use no f_pos */
};

@ depends on has_write && !has_read && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier write_no_fpos.write_f;
@@
struct file_operations fops = {
... .write = write_f, ...
+.llseek = noop_llseek, /* write uses no f_pos */
};

@ depends on has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
identifier read_no_fpos.read_f;
@@
struct file_operations fops = {
... .read = read_f, ...
+.llseek = noop_llseek, /* read uses no f_pos */
};

@ depends on !has_read && !has_write && !fops1 && !fops2 && !has_llseek && !nonseekable1 && !nonseekable2 && !seq @
identifier fops0.fops;
@@
struct file_operations fops = {
...
+.llseek = noop_llseek, /* no read or write fn */
};
===== End semantic patch =====

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Julia Lawall <julia@diku.dk>
Cc: Christoph Hellwig <hch@infradead.org>

207 files changed, 342 insertions, 52 deletions

diff --git a/drivers/acpi/apei/erst-dbg.c b/drivers/acpi/apei/erst-dbg.c
index 5281ddda2777..cbab9b07bf28 100644
--- a/drivers/acpi/apei/erst-dbg.c
+++ b/drivers/acpi/apei/erst-dbg.c
@@ -180,6 +180,7 @@ static const struct file_operations erst_dbg_ops = {
         .read           = erst_dbg_read,
         .write          = erst_dbg_write,
         .unlocked_ioctl = erst_dbg_ioctl,
+        .llseek         = no_llseek,
 };
 
 static struct miscdevice erst_dbg_dev = {
diff --git a/drivers/acpi/debugfs.c b/drivers/acpi/debugfs.c
index 7de27d49c4b9..6355b575ee5a 100644
--- a/drivers/acpi/debugfs.c
+++ b/drivers/acpi/debugfs.c
@@ -69,6 +69,7 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf,
 
 static const struct file_operations cm_fops = {
         .write = cm_write,
+        .llseek = default_llseek,
 };
 
 int __init acpi_debugfs_init(void)
diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c
index 0e869b3f81ca..411620ef84c2 100644
--- a/drivers/acpi/ec_sys.c
+++ b/drivers/acpi/ec_sys.c
@@ -101,6 +101,7 @@ static struct file_operations acpi_ec_io_ops = {
         .open  = acpi_ec_open_io,
         .read  = acpi_ec_read_io,
         .write = acpi_ec_write_io,
+        .llseek = default_llseek,
 };
 
 int acpi_ec_add_debugfs(struct acpi_ec *ec, unsigned int ec_device_count)
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index d439314a75d8..85d908993809 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -110,6 +110,7 @@ static const struct file_operations acpi_system_event_ops = {
         .read = acpi_system_read_event,
         .release = acpi_system_close_event,
         .poll = acpi_system_poll_event,
+        .llseek = default_llseek,
 };
 #endif  /* CONFIG_ACPI_PROC_EVENT */
 
diff --git a/drivers/block/DAC960.c b/drivers/block/DAC960.c
index 4e2c367fec11..dfcb33e8d405 100644
--- a/drivers/block/DAC960.c
+++ b/drivers/block/DAC960.c
@@ -7062,7 +7062,8 @@ static long DAC960_gam_ioctl(struct file *file, unsigned int Request,
 
 static const struct file_operations DAC960_gam_fops = {
         .owner          = THIS_MODULE,
-        .unlocked_ioctl = DAC960_gam_ioctl
+        .unlocked_ioctl = DAC960_gam_ioctl,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice DAC960_gam_dev = {
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index 4a1b9e7464aa..32b484ba21bd 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -265,6 +265,7 @@ static const struct file_operations aoe_fops = {
         .open = aoechr_open,
         .release = aoechr_rel,
         .owner = THIS_MODULE,
+        .llseek = noop_llseek,
 };
 
 static char *aoe_devnode(struct device *dev, mode_t *mode)
diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c
index c397b3ddba9b..aa27cd84f633 100644
--- a/drivers/block/paride/pg.c
+++ b/drivers/block/paride/pg.c
@@ -234,6 +234,7 @@ static const struct file_operations pg_fops = {
         .write = pg_write,
         .open = pg_open,
         .release = pg_release,
+        .llseek = noop_llseek,
 };
 
 static void pg_init_units(void)
diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c
index bc5825fdeaab..c372c32e0db3 100644
--- a/drivers/block/paride/pt.c
+++ b/drivers/block/paride/pt.c
@@ -239,6 +239,7 @@ static const struct file_operations pt_fops = {
         .unlocked_ioctl = pt_ioctl,
         .open = pt_open,
         .release = pt_release,
+        .llseek = noop_llseek,
 };
 
 /* sysfs class support */
diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index b1cbeb59bb76..6a4642dd8283 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -3046,6 +3046,7 @@ static const struct file_operations pkt_ctl_fops = {
         .compat_ioctl   = pkt_ctl_compat_ioctl,
 #endif
         .owner          = THIS_MODULE,
+        .llseek         = no_llseek,
 };
 
 static struct miscdevice pkt_misc = {
diff --git a/drivers/bluetooth/btmrvl_debugfs.c b/drivers/bluetooth/btmrvl_debugfs.c
index 54739b08c308..fd6305bf953e 100644
--- a/drivers/bluetooth/btmrvl_debugfs.c
+++ b/drivers/bluetooth/btmrvl_debugfs.c
@@ -92,6 +92,7 @@ static const struct file_operations btmrvl_hscfgcmd_fops = {
         .read   = btmrvl_hscfgcmd_read,
         .write  = btmrvl_hscfgcmd_write,
         .open   = btmrvl_open_generic,
+        .llseek = default_llseek,
 };
 
 static ssize_t btmrvl_psmode_write(struct file *file, const char __user *ubuf,
@@ -130,6 +131,7 @@ static const struct file_operations btmrvl_psmode_fops = {
         .read   = btmrvl_psmode_read,
         .write  = btmrvl_psmode_write,
         .open   = btmrvl_open_generic,
+        .llseek = default_llseek,
 };
 
 static ssize_t btmrvl_pscmd_write(struct file *file, const char __user *ubuf,
@@ -173,6 +175,7 @@ static const struct file_operations btmrvl_pscmd_fops = {
         .read = btmrvl_pscmd_read,
         .write = btmrvl_pscmd_write,
         .open = btmrvl_open_generic,
+        .llseek = default_llseek,
 };
 
 static ssize_t btmrvl_gpiogap_write(struct file *file, const char __user *ubuf,
@@ -211,6 +214,7 @@ static const struct file_operations btmrvl_gpiogap_fops = {
         .read   = btmrvl_gpiogap_read,
         .write  = btmrvl_gpiogap_write,
         .open   = btmrvl_open_generic,
+        .llseek = default_llseek,
 };
 
 static ssize_t btmrvl_hscmd_write(struct file *file, const char __user *ubuf,
@@ -252,6 +256,7 @@ static const struct file_operations btmrvl_hscmd_fops = {
         .read   = btmrvl_hscmd_read,
         .write  = btmrvl_hscmd_write,
         .open   = btmrvl_open_generic,
+        .llseek = default_llseek,
 };
 
 static ssize_t btmrvl_hsmode_write(struct file *file, const char __user *ubuf,
@@ -289,6 +294,7 @@ static const struct file_operations btmrvl_hsmode_fops = {
         .read   = btmrvl_hsmode_read,
         .write  = btmrvl_hsmode_write,
         .open   = btmrvl_open_generic,
+        .llseek = default_llseek,
 };
 
 static ssize_t btmrvl_curpsmode_read(struct file *file, char __user *userbuf,
@@ -306,6 +312,7 @@ 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,
+        .llseek = default_llseek,
 };
 
 static ssize_t btmrvl_psstate_read(struct file *file, char __user * userbuf,
@@ -323,6 +330,7 @@ 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,
+        .llseek = default_llseek,
 };
 
 static ssize_t btmrvl_hsstate_read(struct file *file, char __user *userbuf,
@@ -340,6 +348,7 @@ 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,
+        .llseek = default_llseek,
 };
 
 static ssize_t btmrvl_txdnldready_read(struct file *file, char __user *userbuf,
@@ -358,6 +367,7 @@ 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,
+        .llseek = default_llseek,
 };
 
 void btmrvl_debugfs_init(struct hci_dev *hdev)
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 3aa7b2a54b6f..67c180c2c1e0 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -282,6 +282,7 @@ static const struct file_operations vhci_fops = {
         .poll           = vhci_poll,
         .open           = vhci_open,
         .release        = vhci_release,
+        .llseek         = no_llseek,
 };
 
 static struct miscdevice vhci_miscdev= {
diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c
index 033e1505fca9..5ffa6904ea6b 100644
--- a/drivers/char/apm-emulation.c
+++ b/drivers/char/apm-emulation.c
@@ -402,6 +402,7 @@ static const struct file_operations apm_bios_fops = {
         .unlocked_ioctl = apm_ioctl,
         .open           = apm_open,
         .release        = apm_release,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice apm_device = {
diff --git a/drivers/char/bfin-otp.c b/drivers/char/bfin-otp.c
index 836d4f0a876f..44660f1c4849 100644
--- a/drivers/char/bfin-otp.c
+++ b/drivers/char/bfin-otp.c
@@ -222,6 +222,7 @@ static const struct file_operations bfin_otp_fops = {
         .unlocked_ioctl = bfin_otp_ioctl,
         .read           = bfin_otp_read,
         .write          = bfin_otp_write,
+        .llseek         = default_llseek,
 };
 
 static struct miscdevice bfin_otp_misc_device = {
diff --git a/drivers/char/briq_panel.c b/drivers/char/briq_panel.c
index d5fa113afe37..f6718f05dad4 100644
--- a/drivers/char/briq_panel.c
+++ b/drivers/char/briq_panel.c
@@ -186,6 +186,7 @@ static const struct file_operations briq_panel_fops = {
         .write          = briq_panel_write,
         .open           = briq_panel_open,
         .release        = briq_panel_release,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice briq_panel_miscdev = {
diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c
index 91917133ae0a..a4a6c2f044b5 100644
--- a/drivers/char/bsr.c
+++ b/drivers/char/bsr.c
@@ -155,6 +155,7 @@ static const struct file_operations bsr_fops = {
         .owner = THIS_MODULE,
         .mmap  = bsr_mmap,
         .open  = bsr_open,
+        .llseek = noop_llseek,
 };
 
 static void bsr_cleanup_devs(void)
diff --git a/drivers/char/cs5535_gpio.c b/drivers/char/cs5535_gpio.c
index 4d830dc482ef..0cf1e5fad9ab 100644
--- a/drivers/char/cs5535_gpio.c
+++ b/drivers/char/cs5535_gpio.c
@@ -169,7 +169,8 @@ static const struct file_operations cs5535_gpio_fops = {
         .owner  = THIS_MODULE,
         .write  = cs5535_gpio_write,
         .read   = cs5535_gpio_read,
-        .open   = cs5535_gpio_open
+        .open   = cs5535_gpio_open,
+        .llseek = no_llseek,
 };
 
 static int __init cs5535_gpio_init(void)
diff --git a/drivers/char/ds1302.c b/drivers/char/ds1302.c
index 170693c93c73..4f7aa364167c 100644
--- a/drivers/char/ds1302.c
+++ b/drivers/char/ds1302.c
@@ -288,6 +288,7 @@ get_rtc_status(char *buf)
 static const struct file_operations rtc_fops = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = rtc_ioctl,
+        .llseek         = noop_llseek,
 };
 
 /* Probe for the chip by writing something to its RAM and try reading it back. */
diff --git a/drivers/char/ds1620.c b/drivers/char/ds1620.c
index dbee8688f75c..50462b63e51b 100644
--- a/drivers/char/ds1620.c
+++ b/drivers/char/ds1620.c
@@ -357,6 +357,7 @@ static const struct file_operations ds1620_fops = {
         .open           = ds1620_open,
         .read           = ds1620_read,
         .unlocked_ioctl = ds1620_unlocked_ioctl,
+        .llseek         = no_llseek,
 };
 
 static struct miscdevice ds1620_miscdev = {
diff --git a/drivers/char/dsp56k.c b/drivers/char/dsp56k.c
index 8a1b28a10ef0..353be4707d92 100644
--- a/drivers/char/dsp56k.c
+++ b/drivers/char/dsp56k.c
@@ -482,6 +482,7 @@ static const struct file_operations dsp56k_fops = {
         .unlocked_ioctl = dsp56k_ioctl,
         .open           = dsp56k_open,
         .release        = dsp56k_release,
+        .llseek         = noop_llseek,
 };
 
 
diff --git a/drivers/char/dtlk.c b/drivers/char/dtlk.c
index e3859d4eaead..007eca3ed77c 100644
--- a/drivers/char/dtlk.c
+++ b/drivers/char/dtlk.c
@@ -105,6 +105,7 @@ static const struct file_operations dtlk_fops =
         .unlocked_ioctl = dtlk_ioctl,
         .open           = dtlk_open,
         .release        = dtlk_release,
+        .llseek         = no_llseek,
 };
 
 /* local prototypes */
diff --git a/drivers/char/genrtc.c b/drivers/char/genrtc.c
index b6c2cc167c11..eaa0e4264e16 100644
--- a/drivers/char/genrtc.c
+++ b/drivers/char/genrtc.c
@@ -497,6 +497,7 @@ static const struct file_operations gen_rtc_fops = {
         .unlocked_ioctl = gen_rtc_unlocked_ioctl,
         .open           = gen_rtc_open,
         .release        = gen_rtc_release,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice rtc_gen_dev =
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 3d9c61e5acbf..788da05190cc 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -170,6 +170,7 @@ static const struct file_operations rng_chrdev_ops = {
         .owner          = THIS_MODULE,
         .open           = rng_dev_open,
         .read           = rng_dev_read,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice rng_miscdev = {
diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index d4b71e8d0d23..2e49e515d8e7 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -236,6 +236,7 @@ static const struct file_operations ip2_ipl = {
         .write          = ip2_ipl_write,
         .unlocked_ioctl = ip2_ipl_ioctl,
         .open           = ip2_ipl_open,
+        .llseek         = noop_llseek,
 }; 
 
 static unsigned long irq_counter;
diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c
index d8ec92a38980..c6709d6b0fd0 100644
--- a/drivers/char/ipmi/ipmi_devintf.c
+++ b/drivers/char/ipmi/ipmi_devintf.c
@@ -850,6 +850,7 @@ static const struct file_operations ipmi_fops = {
         .release        = ipmi_release,
         .fasync         = ipmi_fasync,
         .poll           = ipmi_poll,
+        .llseek         = noop_llseek,
 };
 
 #define DEVICE_NAME     "ipmidev"
diff --git a/drivers/char/ipmi/ipmi_watchdog.c b/drivers/char/ipmi/ipmi_watchdog.c
index 654d566ca57c..da041f88f64a 100644
--- a/drivers/char/ipmi/ipmi_watchdog.c
+++ b/drivers/char/ipmi/ipmi_watchdog.c
@@ -909,6 +909,7 @@ static const struct file_operations ipmi_wdog_fops = {
         .open    = ipmi_open,
         .release = ipmi_close,
         .fasync  = ipmi_fasync,
+        .llseek  = no_llseek,
 };
 
 static struct miscdevice ipmi_wdog_miscdev = {
diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index be28391adb79..667abd23ad6a 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -704,6 +704,7 @@ static const struct file_operations	stli_fsiomem = {
         .read           = stli_memread,
         .write          = stli_memwrite,
         .unlocked_ioctl = stli_memioctl,
+        .llseek         = default_llseek,
 };
 
 /*****************************************************************************/
diff --git a/drivers/char/lp.c b/drivers/char/lp.c
index 938a3a273886..d2344117eaf5 100644
--- a/drivers/char/lp.c
+++ b/drivers/char/lp.c
@@ -748,6 +748,7 @@ static const struct file_operations lp_fops = {
 #ifdef CONFIG_PARPORT_1284
         .read           = lp_read,
 #endif
+        .llseek         = noop_llseek,
 };
 
 /* --- support for console on the line printer ----------------- */
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index a398ecdbd758..8ebd232132fd 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -804,6 +804,7 @@ static const struct file_operations full_fops = {
 static const struct file_operations oldmem_fops = {
         .read   = read_oldmem,
         .open   = open_oldmem,
+        .llseek = default_llseek,
 };
 #endif
 
@@ -830,6 +831,7 @@ static ssize_t kmsg_write(struct file *file, const char __user *buf,
 
 static const struct file_operations kmsg_fops = {
         .write = kmsg_write,
+        .llseek = noop_llseek,
 };
 
 static const struct memdev {
@@ -881,6 +883,7 @@ static int memory_open(struct inode *inode, struct file *filp)
 
 static const struct file_operations memory_fops = {
         .open = memory_open,
+        .llseek = noop_llseek,
 };
 
 static char *mem_devnode(struct device *dev, mode_t *mode)
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index abdafd488980..778273c93242 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -162,6 +162,7 @@ static struct class *misc_class;
 static const struct file_operations misc_fops = {
         .owner          = THIS_MODULE,
         .open           = misc_open,
+        .llseek         = noop_llseek,
 };
 
 /**
diff --git a/drivers/char/mmtimer.c b/drivers/char/mmtimer.c
index ea7c99fa978f..1c4070ced066 100644
--- a/drivers/char/mmtimer.c
+++ b/drivers/char/mmtimer.c
@@ -72,6 +72,7 @@ static const struct file_operations mmtimer_fops = {
         .owner = THIS_MODULE,
         .mmap = mmtimer_mmap,
         .unlocked_ioctl = mmtimer_ioctl,
+        .llseek = noop_llseek,
 };
 
 /*
diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c
index ecb89d798e35..966a95bc974b 100644
--- a/drivers/char/mspec.c
+++ b/drivers/char/mspec.c
@@ -316,7 +316,8 @@ uncached_mmap(struct file *file, struct vm_area_struct *vma)
 
 static const struct file_operations fetchop_fops = {
         .owner = THIS_MODULE,
-        .mmap = fetchop_mmap
+        .mmap = fetchop_mmap,
+        .llseek = noop_llseek,
 };
 
 static struct miscdevice fetchop_miscdev = {
@@ -327,7 +328,8 @@ static struct miscdevice fetchop_miscdev = {
 
 static const struct file_operations cached_fops = {
         .owner = THIS_MODULE,
-        .mmap = cached_mmap
+        .mmap = cached_mmap,
+        .llseek = noop_llseek,
 };
 
 static struct miscdevice cached_miscdev = {
@@ -338,7 +340,8 @@ static struct miscdevice cached_miscdev = {
 
 static const struct file_operations uncached_fops = {
         .owner = THIS_MODULE,
-        .mmap = uncached_mmap
+        .mmap = uncached_mmap,
+        .llseek = noop_llseek,
 };
 
 static struct miscdevice uncached_miscdev = {
diff --git a/drivers/char/mwave/mwavedd.c b/drivers/char/mwave/mwavedd.c
index a4ec50c95072..0464822eac53 100644
--- a/drivers/char/mwave/mwavedd.c
+++ b/drivers/char/mwave/mwavedd.c
@@ -479,7 +479,8 @@ static const struct file_operations mwave_fops = {
         .write          = mwave_write,
         .unlocked_ioctl = mwave_ioctl,
         .open           = mwave_open,
-        .release        = mwave_close
+        .release        = mwave_close,
+        .llseek         = default_llseek,
 };
 
 
diff --git a/drivers/char/nwbutton.c b/drivers/char/nwbutton.c
index 2604246501e4..8994ce32e6c7 100644
--- a/drivers/char/nwbutton.c
+++ b/drivers/char/nwbutton.c
@@ -182,6 +182,7 @@ static int button_read (struct file *filp, char __user *buffer,
 static const struct file_operations button_fops = {
         .owner          = THIS_MODULE,
         .read           = button_read,
+        .llseek         = noop_llseek,
 };
 
 /* 
diff --git a/drivers/char/pc8736x_gpio.c b/drivers/char/pc8736x_gpio.c
index 8ecbcc174c15..b304ec052501 100644
--- a/drivers/char/pc8736x_gpio.c
+++ b/drivers/char/pc8736x_gpio.c
@@ -234,6 +234,7 @@ static const struct file_operations pc8736x_gpio_fileops = {
         .open   = pc8736x_gpio_open,
         .write  = nsc_gpio_write,
         .read   = nsc_gpio_read,
+        .llseek = no_llseek,
 };
 
 static void __init pc8736x_init_shadow(void)
diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c
index ec73d9f6d9ed..c99f6997e5e7 100644
--- a/drivers/char/pcmcia/cm4000_cs.c
+++ b/drivers/char/pcmcia/cm4000_cs.c
@@ -1880,6 +1880,7 @@ static const struct file_operations cm4000_fops = {
         .unlocked_ioctl = cmm_ioctl,
         .open   = cmm_open,
         .release= cmm_close,
+        .llseek = no_llseek,
 };
 
 static struct pcmcia_device_id cm4000_ids[] = {
diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c
index 815cde1d0570..9ecc58baa8f3 100644
--- a/drivers/char/pcmcia/cm4040_cs.c
+++ b/drivers/char/pcmcia/cm4040_cs.c
@@ -650,6 +650,7 @@ static const struct file_operations reader_fops = {
         .open           = cm4040_open,
         .release        = cm4040_close,
         .poll           = cm4040_poll,
+        .llseek         = no_llseek,
 };
 
 static struct pcmcia_device_id cm4040_ids[] = {
diff --git a/drivers/char/random.c b/drivers/char/random.c
index caef35a46890..5a1aa64f4e76 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1165,6 +1165,7 @@ const struct file_operations random_fops = {
         .poll  = random_poll,
         .unlocked_ioctl = random_ioctl,
         .fasync = random_fasync,
+        .llseek = noop_llseek,
 };
 
 const struct file_operations urandom_fops = {
@@ -1172,6 +1173,7 @@ const struct file_operations urandom_fops = {
         .write = random_write,
         .unlocked_ioctl = random_ioctl,
         .fasync = random_fasync,
+        .llseek = noop_llseek,
 };
 
 /***************************************************************
diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c
index d58c2eb07f07..1e87a93164bf 100644
--- a/drivers/char/rio/rio_linux.c
+++ b/drivers/char/rio/rio_linux.c
@@ -241,6 +241,7 @@ static struct real_driver rio_real_driver = {
 static const struct file_operations rio_fw_fops = {
         .owner = THIS_MODULE,
         .unlocked_ioctl = rio_fw_ioctl,
+        .llseek = noop_llseek,
 };
 
 static struct miscdevice rio_fw_device = {
diff --git a/drivers/char/scx200_gpio.c b/drivers/char/scx200_gpio.c
index 99e5272e3c53..0bc135b9b16f 100644
--- a/drivers/char/scx200_gpio.c
+++ b/drivers/char/scx200_gpio.c
@@ -67,6 +67,7 @@ static const struct file_operations scx200_gpio_fileops = {
         .read    = nsc_gpio_read,
         .open    = scx200_gpio_open,
         .release = scx200_gpio_release,
+        .llseek  = no_llseek,
 };
 
 static struct cdev scx200_gpio_cdev;  /* use 1 cdev for all pins */
diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c
index 32b74de18f5f..444ce17ac722 100644
--- a/drivers/char/snsc.c
+++ b/drivers/char/snsc.c
@@ -357,6 +357,7 @@ static const struct file_operations scdrv_fops = {
         .poll =         scdrv_poll,
         .open =         scdrv_open,
         .release =      scdrv_release,
+        .llseek =       noop_llseek,
 };
 
 static struct class *snsc_class;
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index f2167f8e5aab..8ef16490810c 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -608,6 +608,7 @@ static unsigned int	sc26198_baudtable[] = {
 static const struct file_operations     stl_fsiomem = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = stl_memioctl,
+        .llseek         = noop_llseek,
 };
 
 static struct class *stallion_class;
diff --git a/drivers/char/sx.c b/drivers/char/sx.c
index 5b24db4ff7f1..e53f16865397 100644
--- a/drivers/char/sx.c
+++ b/drivers/char/sx.c
@@ -397,6 +397,7 @@ static struct real_driver sx_real_driver = {
 static const struct file_operations sx_fw_fops = {
         .owner = THIS_MODULE,
         .unlocked_ioctl = sx_fw_ioctl,
+        .llseek = noop_llseek,
 };
 
 static struct miscdevice sx_fw_device = {
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index ef31bb81e843..f3019f53e875 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -772,6 +772,7 @@ static ssize_t write_sysrq_trigger(struct file *file, const char __user *buf,
 
 static const struct file_operations proc_sysrq_trigger_operations = {
         .write          = write_sysrq_trigger,
+        .llseek         = noop_llseek,
 };
 
 static void sysrq_init_procfs(void)
diff --git a/drivers/char/tb0219.c b/drivers/char/tb0219.c
index cad4eb65f13d..ad264185eb10 100644
--- a/drivers/char/tb0219.c
+++ b/drivers/char/tb0219.c
@@ -261,6 +261,7 @@ static const struct file_operations tb0219_fops = {
         .write          = tanbac_tb0219_write,
         .open           = tanbac_tb0219_open,
         .release        = tanbac_tb0219_release,
+        .llseek         = no_llseek,
 };
 
 static void tb0219_restart(char *command)
diff --git a/drivers/char/tlclk.c b/drivers/char/tlclk.c
index 80ea6bcfffdc..d087532b29d7 100644
--- a/drivers/char/tlclk.c
+++ b/drivers/char/tlclk.c
@@ -267,6 +267,7 @@ static const struct file_operations tlclk_fops = {
         .read = tlclk_read,
         .open = tlclk_open,
         .release = tlclk_release,
+        .llseek = noop_llseek,
 
 };
 
diff --git a/drivers/char/toshiba.c b/drivers/char/toshiba.c
index f8bc79f6de34..3d6e96172453 100644
--- a/drivers/char/toshiba.c
+++ b/drivers/char/toshiba.c
@@ -95,6 +95,7 @@ static long tosh_ioctl(struct file *, unsigned int,
 static const struct file_operations tosh_fops = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = tosh_ioctl,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice tosh_device = {
diff --git a/drivers/char/uv_mmtimer.c b/drivers/char/uv_mmtimer.c
index c7072ba14f48..493b47a0d511 100644
--- a/drivers/char/uv_mmtimer.c
+++ b/drivers/char/uv_mmtimer.c
@@ -52,6 +52,7 @@ static const struct file_operations uv_mmtimer_fops = {
         .owner = THIS_MODULE,
         .mmap = uv_mmtimer_mmap,
         .unlocked_ioctl = uv_mmtimer_ioctl,
+        .llseek = noop_llseek,
 };
 
 /**
diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
index b663d573aad9..be6d6fb47cc5 100644
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
@@ -567,6 +567,7 @@ static const struct file_operations hwicap_fops = {
         .read = hwicap_read,
         .open = hwicap_open,
         .release = hwicap_release,
+        .llseek = noop_llseek,
 };
 
 static int __devinit hwicap_setup(struct device *dev, int id,
diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c
index 557e2272e5b3..ae2b8714d190 100644
--- a/drivers/dma/coh901318.c
+++ b/drivers/dma/coh901318.c
@@ -157,6 +157,7 @@ static const struct file_operations coh901318_debugfs_status_operations = {
         .owner          = THIS_MODULE,
         .open           = coh901318_debugfs_open,
         .read           = coh901318_debugfs_read,
+        .llseek         = default_llseek,
 };
 
 
diff --git a/drivers/firewire/nosy.c b/drivers/firewire/nosy.c
index 8528b10763ed..bf184fb59a5e 100644
--- a/drivers/firewire/nosy.c
+++ b/drivers/firewire/nosy.c
@@ -405,6 +405,7 @@ static const struct file_operations nosy_ops = {
         .poll =                 nosy_poll,
         .open =                 nosy_open,
         .release =              nosy_release,
+        .llseek =               noop_llseek,
 };
 
 #define PHY_PACKET_SIZE 12 /* 1 payload, 1 inverse, 1 ack = 3 quadlets */
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 84da748555bc..ff6690f4fc87 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -284,7 +284,8 @@ EXPORT_SYMBOL(drm_exit);
 /** File operations structure */
 static const struct file_operations drm_stub_fops = {
         .owner = THIS_MODULE,
-        .open = drm_stub_open
+        .open = drm_stub_open,
+        .llseek = noop_llseek,
 };
 
 static int __init drm_core_init(void)
diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
index 61b4caf220fa..00f1bdaa65cd 100644
--- a/drivers/gpu/drm/i810/i810_dma.c
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -119,6 +119,7 @@ static const struct file_operations i810_buffer_fops = {
         .unlocked_ioctl = drm_ioctl,
         .mmap = i810_mmap_buffers,
         .fasync = drm_fasync,
+        .llseek = noop_llseek,
 };
 
 static int i810_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
diff --git a/drivers/gpu/drm/i830/i830_dma.c b/drivers/gpu/drm/i830/i830_dma.c
index 671aa18415ac..5c6eb65f4e51 100644
--- a/drivers/gpu/drm/i830/i830_dma.c
+++ b/drivers/gpu/drm/i830/i830_dma.c
@@ -121,6 +121,7 @@ static const struct file_operations i830_buffer_fops = {
         .unlocked_ioctl = drm_ioctl,
         .mmap = i830_mmap_buffers,
         .fasync = drm_fasync,
+        .llseek = noop_llseek,
 };
 
 static int i830_map_buffer(struct drm_buf *buf, struct drm_file *file_priv)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 5e43d7076789..048149748fdc 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -782,6 +782,7 @@ static const struct file_operations i915_wedged_fops = {
         .open = i915_wedged_open,
         .read = i915_wedged_read,
         .write = i915_wedged_write,
+        .llseek = default_llseek,
 };
 
 /* As the drm_debugfs_init() routines are called before dev->dev_private is
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
index b87569e96b16..3b7e0acf8164 100644
--- a/drivers/gpu/vga/vgaarb.c
+++ b/drivers/gpu/vga/vgaarb.c
@@ -1211,6 +1211,7 @@ static const struct file_operations vga_arb_device_fops = {
         .poll = vga_arb_fpoll,
         .open = vga_arb_open,
         .release = vga_arb_release,
+        .llseek = noop_llseek,
 };
 
 static struct miscdevice vga_arb_device = {
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 850d02a7a925..61a3e572224a 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -1051,6 +1051,7 @@ static const struct file_operations hid_debug_events_fops = {
         .read           = hid_debug_events_read,
         .poll           = hid_debug_events_poll,
         .release        = hid_debug_events_release,
+        .llseek         = noop_llseek,
 };
 
 
diff --git a/drivers/hid/hid-roccat.c b/drivers/hid/hid-roccat.c
index f6e80c7ca61e..5a6879e235ac 100644
--- a/drivers/hid/hid-roccat.c
+++ b/drivers/hid/hid-roccat.c
@@ -384,6 +384,7 @@ static const struct file_operations roccat_ops = {
         .poll = roccat_poll,
         .open = roccat_open,
         .release = roccat_release,
+        .llseek = noop_llseek,
 };
 
 static int __init roccat_init(void)
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index 47d70c523d93..bb98fa87aa86 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -329,6 +329,7 @@ static const struct file_operations hidraw_ops = {
         .open =         hidraw_open,
         .release =      hidraw_release,
         .unlocked_ioctl = hidraw_ioctl,
+        .llseek =       noop_llseek,
 };
 
 void hidraw_report_event(struct hid_device *hid, u8 *data, int len)
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 0a29c51114aa..e8f45d7ef3b2 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -847,6 +847,7 @@ static const struct file_operations hiddev_fops = {
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = hiddev_compat_ioctl,
 #endif
+        .llseek         = noop_llseek,
 };
 
 static char *hiddev_devnode(struct device *dev, mode_t *mode)
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index 653db1bda934..23b8555215d2 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -762,6 +762,7 @@ static const struct file_operations atk_debugfs_ggrp_fops = {
         .read           = atk_debugfs_ggrp_read,
         .open           = atk_debugfs_ggrp_open,
         .release        = atk_debugfs_ggrp_release,
+        .llseek         = no_llseek,
 };
 
 static void atk_debugfs_init(struct atk_data *data)
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 6d622cb5ac81..23d1d1c5587c 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1903,6 +1903,7 @@ static const struct file_operations idetape_fops = {
         .unlocked_ioctl = idetape_chrdev_ioctl,
         .open           = idetape_chrdev_open,
         .release        = idetape_chrdev_release,
+        .llseek         = noop_llseek,
 };
 
 static int idetape_open(struct block_device *bdev, fmode_t mode)
diff --git a/drivers/idle/i7300_idle.c b/drivers/idle/i7300_idle.c
index 15341fc1c68b..c976285d313e 100644
--- a/drivers/idle/i7300_idle.c
+++ b/drivers/idle/i7300_idle.c
@@ -536,6 +536,7 @@ 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,
         .read   = stats_read_ul,
+        .llseek = default_llseek,
 };
 
 struct debugfs_file_info {
diff --git a/drivers/infiniband/hw/ipath/ipath_diag.c b/drivers/infiniband/hw/ipath/ipath_diag.c
index d4ce8b63e19e..daef61d5e5bb 100644
--- a/drivers/infiniband/hw/ipath/ipath_diag.c
+++ b/drivers/infiniband/hw/ipath/ipath_diag.c
@@ -65,7 +65,8 @@ static const struct file_operations diag_file_ops = {
         .write = ipath_diag_write,
         .read = ipath_diag_read,
         .open = ipath_diag_open,
-        .release = ipath_diag_release
+        .release = ipath_diag_release,
+        .llseek = default_llseek,
 };
 
 static ssize_t ipath_diagpkt_write(struct file *fp,
@@ -75,6 +76,7 @@ static ssize_t ipath_diagpkt_write(struct file *fp,
 static const struct file_operations diagpkt_file_ops = {
         .owner = THIS_MODULE,
         .write = ipath_diagpkt_write,
+        .llseek = noop_llseek,
 };
 
 static atomic_t diagpkt_count = ATOMIC_INIT(0);
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c
index 65eb8929db22..6078992da3f0 100644
--- a/drivers/infiniband/hw/ipath/ipath_file_ops.c
+++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c
@@ -63,7 +63,8 @@ static const struct file_operations ipath_file_ops = {
         .open = ipath_open,
         .release = ipath_close,
         .poll = ipath_poll,
-        .mmap = ipath_mmap
+        .mmap = ipath_mmap,
+        .llseek = noop_llseek,
 };
 
 /*
diff --git a/drivers/infiniband/hw/ipath/ipath_fs.c b/drivers/infiniband/hw/ipath/ipath_fs.c
index 2fca70836dae..d13e72685dcf 100644
--- a/drivers/infiniband/hw/ipath/ipath_fs.c
+++ b/drivers/infiniband/hw/ipath/ipath_fs.c
@@ -103,6 +103,7 @@ static ssize_t atomic_stats_read(struct file *file, char __user *buf,
 
 static const struct file_operations atomic_stats_ops = {
         .read = atomic_stats_read,
+        .llseek = default_llseek,
 };
 
 static ssize_t atomic_counters_read(struct file *file, char __user *buf,
@@ -120,6 +121,7 @@ static ssize_t atomic_counters_read(struct file *file, char __user *buf,
 
 static const struct file_operations atomic_counters_ops = {
         .read = atomic_counters_read,
+        .llseek = default_llseek,
 };
 
 static ssize_t flash_read(struct file *file, char __user *buf,
@@ -224,6 +226,7 @@ bail:
 static const struct file_operations flash_ops = {
         .read = flash_read,
         .write = flash_write,
+        .llseek = default_llseek,
 };
 
 static int create_device_files(struct super_block *sb,
diff --git a/drivers/infiniband/hw/qib/qib_diag.c b/drivers/infiniband/hw/qib/qib_diag.c
index 05dcf0d9a7d3..204c4dd9dce0 100644
--- a/drivers/infiniband/hw/qib/qib_diag.c
+++ b/drivers/infiniband/hw/qib/qib_diag.c
@@ -136,7 +136,8 @@ static const struct file_operations diag_file_ops = {
         .write = qib_diag_write,
         .read = qib_diag_read,
         .open = qib_diag_open,
-        .release = qib_diag_release
+        .release = qib_diag_release,
+        .llseek = default_llseek,
 };
 
 static atomic_t diagpkt_count = ATOMIC_INIT(0);
@@ -149,6 +150,7 @@ static ssize_t qib_diagpkt_write(struct file *fp, const char __user *data,
 static const struct file_operations diagpkt_file_ops = {
         .owner = THIS_MODULE,
         .write = qib_diagpkt_write,
+        .llseek = noop_llseek,
 };
 
 int qib_diag_add(struct qib_devdata *dd)
diff --git a/drivers/infiniband/hw/qib/qib_file_ops.c b/drivers/infiniband/hw/qib/qib_file_ops.c
index 6b11645edf35..aa2be214270f 100644
--- a/drivers/infiniband/hw/qib/qib_file_ops.c
+++ b/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -63,7 +63,8 @@ static const struct file_operations qib_file_ops = {
         .open = qib_open,
         .release = qib_close,
         .poll = qib_poll,
-        .mmap = qib_mmapf
+        .mmap = qib_mmapf,
+        .llseek = noop_llseek,
 };
 
 /*
diff --git a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c
index 9f989c0ba9d3..a0e6613e8be6 100644
--- a/drivers/infiniband/hw/qib/qib_fs.c
+++ b/drivers/infiniband/hw/qib/qib_fs.c
@@ -367,6 +367,7 @@ bail:
 static const struct file_operations flash_ops = {
         .read = flash_read,
         .write = flash_write,
+        .llseek = default_llseek,
 };
 
 static int add_cntr_files(struct super_block *sb, struct qib_devdata *dd)
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index c908c5f83645..51330363c0eb 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -761,7 +761,8 @@ static const struct file_operations evdev_fops = {
         .compat_ioctl   = evdev_ioctl_compat,
 #endif
         .fasync         = evdev_fasync,
-        .flush          = evdev_flush
+        .flush          = evdev_flush,
+        .llseek         = no_llseek,
 };
 
 static int evdev_install_chrdev(struct evdev *evdev)
diff --git a/drivers/input/input.c b/drivers/input/input.c
index ab6982056518..7919c2537225 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -2047,6 +2047,7 @@ out:
 static const struct file_operations input_fops = {
         .owner = THIS_MODULE,
         .open = input_open_file,
+        .llseek = noop_llseek,
 };
 
 static int __init input_init(void)
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index d85bd8a7967d..502b2f73b434 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -736,6 +736,7 @@ static const struct file_operations joydev_fops = {
         .compat_ioctl   = joydev_compat_ioctl,
 #endif
         .fasync         = joydev_fasync,
+        .llseek         = no_llseek,
 };
 
 static int joydev_install_chrdev(struct joydev *joydev)
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 0d4266a533a5..2771ea778d34 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -804,6 +804,7 @@ static const struct file_operations uinput_fops = {
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = uinput_compat_ioctl,
 #endif
+        .llseek         = no_llseek,
 };
 
 static struct miscdevice uinput_misc = {
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index d528a2dba064..31ec7265aac6 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -792,6 +792,7 @@ static const struct file_operations mousedev_fops = {
         .open =         mousedev_open,
         .release =      mousedev_release,
         .fasync =       mousedev_fasync,
+        .llseek = noop_llseek,
 };
 
 static int mousedev_install_chrdev(struct mousedev *mousedev)
diff --git a/drivers/input/serio/serio_raw.c b/drivers/input/serio/serio_raw.c
index 998664854440..cd82bb125915 100644
--- a/drivers/input/serio/serio_raw.c
+++ b/drivers/input/serio/serio_raw.c
@@ -243,6 +243,7 @@ static const struct file_operations serio_raw_fops = {
         .write =        serio_raw_write,
         .poll =         serio_raw_poll,
         .fasync =       serio_raw_fasync,
+        .llseek = noop_llseek,
 };
 
 
diff --git a/drivers/isdn/mISDN/timerdev.c b/drivers/isdn/mISDN/timerdev.c
index de43c8c70ad0..859c81e9483b 100644
--- a/drivers/isdn/mISDN/timerdev.c
+++ b/drivers/isdn/mISDN/timerdev.c
@@ -267,6 +267,7 @@ static const struct file_operations mISDN_fops = {
         .unlocked_ioctl = mISDN_ioctl,
         .open           = mISDN_open,
         .release        = mISDN_close,
+        .llseek         = no_llseek,
 };
 
 static struct miscdevice mISDNtimer = {
diff --git a/drivers/lguest/lguest_user.c b/drivers/lguest/lguest_user.c
index 85b714df8eae..3c781cdddda9 100644
--- a/drivers/lguest/lguest_user.c
+++ b/drivers/lguest/lguest_user.c
@@ -514,6 +514,7 @@ static const struct file_operations lguest_fops = {
         .release = close,
         .write   = write,
         .read    = read,
+        .llseek  = default_llseek,
 };
 
 /*
diff --git a/drivers/macintosh/ans-lcd.c b/drivers/macintosh/ans-lcd.c
index a3d25da2f275..1a57e88a38f7 100644
--- a/drivers/macintosh/ans-lcd.c
+++ b/drivers/macintosh/ans-lcd.c
@@ -137,6 +137,7 @@ const struct file_operations anslcd_fops = {
         .write          = anslcd_write,
         .unlocked_ioctl = anslcd_ioctl,
         .open           = anslcd_open,
+        .llseek         = default_llseek,
 };
 
 static struct miscdevice anslcd_dev = {
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 2d17e76066bd..44d171cc2252 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -2398,6 +2398,7 @@ static const struct file_operations pmu_device_fops = {
 #endif
         .open           = pmu_open,
         .release        = pmu_release,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice pmu_device = {
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index 3e39193e5036..4b54618b4159 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1596,6 +1596,7 @@ static const struct file_operations _ctl_fops = {
         .unlocked_ioctl  = dm_ctl_ioctl,
         .compat_ioctl = dm_compat_ctl_ioctl,
         .owner   = THIS_MODULE,
+        .llseek  = noop_llseek,
 };
 
 static struct miscdevice _dm_misc = {
diff --git a/drivers/media/IR/imon.c b/drivers/media/IR/imon.c
index c185422ef28c..faed5a332c71 100644
--- a/drivers/media/IR/imon.c
+++ b/drivers/media/IR/imon.c
@@ -151,7 +151,8 @@ static const struct file_operations vfd_fops = {
         .owner          = THIS_MODULE,
         .open           = &display_open,
         .write          = &vfd_write,
-        .release        = &display_close
+        .release        = &display_close,
+        .llseek         = noop_llseek,
 };
 
 /* lcd character device file operations */
@@ -159,7 +160,8 @@ static const struct file_operations lcd_fops = {
         .owner          = THIS_MODULE,
         .open           = &display_open,
         .write          = &lcd_write,
-        .release        = &display_close
+        .release        = &display_close,
+        .llseek         = noop_llseek,
 };
 
 enum {
diff --git a/drivers/media/IR/lirc_dev.c b/drivers/media/IR/lirc_dev.c
index 5b145e8672fe..0acf6396e068 100644
--- a/drivers/media/IR/lirc_dev.c
+++ b/drivers/media/IR/lirc_dev.c
@@ -163,6 +163,7 @@ static struct file_operations fops = {
         .unlocked_ioctl = lirc_dev_fop_ioctl,
         .open           = lirc_dev_fop_open,
         .release        = lirc_dev_fop_close,
+        .llseek         = noop_llseek,
 };
 
 static int lirc_cdev_add(struct irctl *ir)
diff --git a/drivers/media/dvb/bt8xx/dst_ca.c b/drivers/media/dvb/bt8xx/dst_ca.c
index cf8705162845..7ed74dfc6b92 100644
--- a/drivers/media/dvb/bt8xx/dst_ca.c
+++ b/drivers/media/dvb/bt8xx/dst_ca.c
@@ -694,7 +694,8 @@ static const struct file_operations dst_ca_fops = {
         .open = dst_ca_open,
         .release = dst_ca_release,
         .read = dst_ca_read,
-        .write = dst_ca_write
+        .write = dst_ca_write,
+        .llseek = noop_llseek,
 };
 
 static struct dvb_device dvbdev_ca = {
diff --git a/drivers/media/dvb/dvb-core/dmxdev.c b/drivers/media/dvb/dvb-core/dmxdev.c
index 0042306ea11b..75c20ac82c0f 100644
--- a/drivers/media/dvb/dvb-core/dmxdev.c
+++ b/drivers/media/dvb/dvb-core/dmxdev.c
@@ -1150,6 +1150,7 @@ static const struct file_operations dvb_demux_fops = {
         .open = dvb_demux_open,
         .release = dvb_demux_release,
         .poll = dvb_demux_poll,
+        .llseek = default_llseek,
 };
 
 static struct dvb_device dvbdev_demux = {
@@ -1225,6 +1226,7 @@ static const struct file_operations dvb_dvr_fops = {
         .open = dvb_dvr_open,
         .release = dvb_dvr_release,
         .poll = dvb_dvr_poll,
+        .llseek = default_llseek,
 };
 
 static struct dvb_device dvbdev_dvr = {
diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
index cb97e6b85432..ff8921dd737f 100644
--- a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
@@ -1628,6 +1628,7 @@ static const struct file_operations dvb_ca_fops = {
         .open = dvb_ca_en50221_io_open,
         .release = dvb_ca_en50221_io_release,
         .poll = dvb_ca_en50221_io_poll,
+        .llseek = noop_llseek,
 };
 
 static struct dvb_device dvbdev_ca = {
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 4d45b7d6b3fb..970c9b8882d4 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -2034,7 +2034,8 @@ static const struct file_operations dvb_frontend_fops = {
         .unlocked_ioctl = dvb_generic_ioctl,
         .poll           = dvb_frontend_poll,
         .open           = dvb_frontend_open,
-        .release        = dvb_frontend_release
+        .release        = dvb_frontend_release,
+        .llseek         = noop_llseek,
 };
 
 int dvb_register_frontend(struct dvb_adapter* dvb,
diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c
index 6c3a8a06ccab..82636f517b9e 100644
--- a/drivers/media/dvb/dvb-core/dvb_net.c
+++ b/drivers/media/dvb/dvb-core/dvb_net.c
@@ -1475,6 +1475,7 @@ static const struct file_operations dvb_net_fops = {
         .unlocked_ioctl = dvb_net_ioctl,
         .open = dvb_generic_open,
         .release = dvb_net_close,
+        .llseek = noop_llseek,
 };
 
 static struct dvb_device dvbdev_net = {
diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
index b915c39d782f..774b40e4f589 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -105,6 +105,7 @@ static const struct file_operations dvb_device_fops =
 {
         .owner =        THIS_MODULE,
         .open =         dvb_device_open,
+        .llseek =       noop_llseek,
 };
 
 static struct cdev dvb_device_cdev;
diff --git a/drivers/media/dvb/firewire/firedtv-ci.c b/drivers/media/dvb/firewire/firedtv-ci.c
index d3c2cf60de76..8ffb565f0704 100644
--- a/drivers/media/dvb/firewire/firedtv-ci.c
+++ b/drivers/media/dvb/firewire/firedtv-ci.c
@@ -220,6 +220,7 @@ static const struct file_operations fdtv_ca_fops = {
         .open           = dvb_generic_open,
         .release        = dvb_generic_release,
         .poll           = fdtv_ca_io_poll,
+        .llseek         = noop_llseek,
 };
 
 static struct dvb_device fdtv_ca = {
diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c
index a6be529eec5c..893fbc57c72f 100644
--- a/drivers/media/dvb/ttpci/av7110.c
+++ b/drivers/media/dvb/ttpci/av7110.c
@@ -730,6 +730,7 @@ static const struct file_operations dvb_osd_fops = {
         .unlocked_ioctl = dvb_generic_ioctl,
         .open           = dvb_generic_open,
         .release        = dvb_generic_release,
+        .llseek         = noop_llseek,
 };
 
 static struct dvb_device dvbdev_osd = {
diff --git a/drivers/media/dvb/ttpci/av7110_av.c b/drivers/media/dvb/ttpci/av7110_av.c
index 13efba942dac..6ef3996565ad 100644
--- a/drivers/media/dvb/ttpci/av7110_av.c
+++ b/drivers/media/dvb/ttpci/av7110_av.c
@@ -1521,6 +1521,7 @@ static const struct file_operations dvb_video_fops = {
         .open           = dvb_video_open,
         .release        = dvb_video_release,
         .poll           = dvb_video_poll,
+        .llseek         = noop_llseek,
 };
 
 static struct dvb_device dvbdev_video = {
@@ -1539,6 +1540,7 @@ static const struct file_operations dvb_audio_fops = {
         .open           = dvb_audio_open,
         .release        = dvb_audio_release,
         .poll           = dvb_audio_poll,
+        .llseek         = noop_llseek,
 };
 
 static struct dvb_device dvbdev_audio = {
diff --git a/drivers/media/dvb/ttpci/av7110_ca.c b/drivers/media/dvb/ttpci/av7110_ca.c
index 4eba35a018e3..43f61f2eca98 100644
--- a/drivers/media/dvb/ttpci/av7110_ca.c
+++ b/drivers/media/dvb/ttpci/av7110_ca.c
@@ -353,6 +353,7 @@ static const struct file_operations dvb_ca_fops = {
         .open           = dvb_ca_open,
         .release        = dvb_generic_release,
         .poll           = dvb_ca_poll,
+        .llseek         = default_llseek,
 };
 
 static struct dvb_device dvbdev_ca = {
diff --git a/drivers/media/dvb/ttpci/av7110_ir.c b/drivers/media/dvb/ttpci/av7110_ir.c
index b070e88d8c6b..908f272fe26c 100644
--- a/drivers/media/dvb/ttpci/av7110_ir.c
+++ b/drivers/media/dvb/ttpci/av7110_ir.c
@@ -312,6 +312,7 @@ static ssize_t av7110_ir_proc_write(struct file *file, const char __user *buffer
 static const struct file_operations av7110_ir_proc_fops = {
         .owner          = THIS_MODULE,
         .write          = av7110_ir_proc_write,
+        .llseek         = noop_llseek,
 };
 
 /* interrupt handler */
diff --git a/drivers/mfd/ab3100-core.c b/drivers/mfd/ab3100-core.c
index 66379b413906..b048ecc56db9 100644
--- a/drivers/mfd/ab3100-core.c
+++ b/drivers/mfd/ab3100-core.c
@@ -583,6 +583,7 @@ 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,
         .write = ab3100_get_set_reg,
+        .llseek = noop_llseek,
 };
 
 static struct dentry *ab3100_dir;
diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c
index 557a8c2a7336..69c1f2fca141 100644
--- a/drivers/misc/hpilo.c
+++ b/drivers/misc/hpilo.c
@@ -640,6 +640,7 @@ static const struct file_operations ilo_fops = {
         .poll           = ilo_poll,
         .open           = ilo_open,
         .release        = ilo_close,
+        .llseek         = noop_llseek,
 };
 
 static irqreturn_t ilo_isr(int irq, void *data)
diff --git a/drivers/misc/phantom.c b/drivers/misc/phantom.c
index 75ee0d3f6f45..6b38b5964294 100644
--- a/drivers/misc/phantom.c
+++ b/drivers/misc/phantom.c
@@ -279,6 +279,7 @@ static const struct file_operations phantom_file_ops = {
         .unlocked_ioctl = phantom_ioctl,
         .compat_ioctl = phantom_compat_ioctl,
         .poll = phantom_poll,
+        .llseek = no_llseek,
 };
 
 static irqreturn_t phantom_isr(int irq, void *data)
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index cb3b4d228475..28852dfa310d 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -587,6 +587,7 @@ static const struct file_operations gru_fops = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = gru_file_unlocked_ioctl,
         .mmap           = gru_file_mmap,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice gru_miscdev = {
diff --git a/drivers/mmc/core/debugfs.c b/drivers/mmc/core/debugfs.c
index 53cb380c0987..46bc6d7551a3 100644
--- a/drivers/mmc/core/debugfs.c
+++ b/drivers/mmc/core/debugfs.c
@@ -245,6 +245,7 @@ static const struct file_operations mmc_dbg_ext_csd_fops = {
         .open           = mmc_ext_csd_open,
         .read           = mmc_ext_csd_read,
         .release        = mmc_ext_csd_release,
+        .llseek         = default_llseek,
 };
 
 void mmc_add_card_debugfs(struct mmc_card *card)
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c
index 3d2d1a69e9a0..af9fb0ff8210 100644
--- a/drivers/mtd/ubi/cdev.c
+++ b/drivers/mtd/ubi/cdev.c
@@ -1100,4 +1100,5 @@ const struct file_operations ubi_ctrl_cdev_operations = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = ctrl_cdev_ioctl,
         .compat_ioctl   = ctrl_cdev_compat_ioctl,
+        .llseek         = noop_llseek,
 };
diff --git a/drivers/net/caif/caif_spi.c b/drivers/net/caif/caif_spi.c
index f5058ff2b210..8427533fe313 100644
--- a/drivers/net/caif/caif_spi.c
+++ b/drivers/net/caif/caif_spi.c
@@ -240,13 +240,15 @@ static ssize_t dbgfs_frame(struct file *file, char __user *user_buf,
 static const struct file_operations dbgfs_state_fops = {
         .open = dbgfs_open,
         .read = dbgfs_state,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 static const struct file_operations dbgfs_frame_fops = {
         .open = dbgfs_open,
         .read = dbgfs_frame,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 static inline void dev_debugfs_add(struct cfspi *cfspi)
diff --git a/drivers/net/cxgb4/cxgb4_main.c b/drivers/net/cxgb4/cxgb4_main.c
index c327527fbbc8..e2bf10d90add 100644
--- a/drivers/net/cxgb4/cxgb4_main.c
+++ b/drivers/net/cxgb4/cxgb4_main.c
@@ -2026,6 +2026,7 @@ static const struct file_operations mem_debugfs_fops = {
         .owner   = THIS_MODULE,
         .open    = mem_open,
         .read    = mem_read,
+        .llseek  = default_llseek,
 };
 
 static void __devinit add_debugfs_mem(struct adapter *adap, const char *name,
diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c
index 6695a51e09e9..323e81e9e808 100644
--- a/drivers/net/ppp_generic.c
+++ b/drivers/net/ppp_generic.c
@@ -856,7 +856,8 @@ static const struct file_operations ppp_device_fops = {
         .poll           = ppp_poll,
         .unlocked_ioctl = ppp_ioctl,
         .open           = ppp_open,
-        .release        = ppp_release
+        .release        = ppp_release,
+        .llseek         = noop_llseek,
 };
 
 static __net_init int ppp_init_net(struct net *net)
diff --git a/drivers/net/wimax/i2400m/debugfs.c b/drivers/net/wimax/i2400m/debugfs.c
index b1aec3e1892f..9c70b5fa3f51 100644
--- a/drivers/net/wimax/i2400m/debugfs.c
+++ b/drivers/net/wimax/i2400m/debugfs.c
@@ -119,6 +119,7 @@ const struct file_operations i2400m_rx_stats_fops = {
         .open =         i2400m_stats_open,
         .read =         i2400m_rx_stats_read,
         .write =        i2400m_rx_stats_write,
+        .llseek =       default_llseek,
 };
 
 
@@ -171,6 +172,7 @@ const struct file_operations i2400m_tx_stats_fops = {
         .open =         i2400m_stats_open,
         .read =         i2400m_tx_stats_read,
         .write =        i2400m_tx_stats_write,
+        .llseek =       default_llseek,
 };
 
 
diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 1d05445d4ba3..ce77575e88b3 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -4430,21 +4430,24 @@ static const struct file_operations proc_statsdelta_ops = {
         .owner          = THIS_MODULE,
         .read           = proc_read,
         .open           = proc_statsdelta_open,
-        .release        = proc_close
+        .release        = proc_close,
+        .llseek         = default_llseek,
 };
 
 static const struct file_operations proc_stats_ops = {
         .owner          = THIS_MODULE,
         .read           = proc_read,
         .open           = proc_stats_open,
-        .release        = proc_close
+        .release        = proc_close,
+        .llseek         = default_llseek,
 };
 
 static const struct file_operations proc_status_ops = {
         .owner          = THIS_MODULE,
         .read           = proc_read,
         .open           = proc_status_open,
-        .release        = proc_close
+        .release        = proc_close,
+        .llseek         = default_llseek,
 };
 
 static const struct file_operations proc_SSID_ops = {
@@ -4452,7 +4455,8 @@ static const struct file_operations proc_SSID_ops = {
         .read           = proc_read,
         .write          = proc_write,
         .open           = proc_SSID_open,
-        .release        = proc_close
+        .release        = proc_close,
+        .llseek         = default_llseek,
 };
 
 static const struct file_operations proc_BSSList_ops = {
@@ -4460,7 +4464,8 @@ static const struct file_operations proc_BSSList_ops = {
         .read           = proc_read,
         .write          = proc_write,
         .open           = proc_BSSList_open,
-        .release        = proc_close
+        .release        = proc_close,
+        .llseek         = default_llseek,
 };
 
 static const struct file_operations proc_APList_ops = {
@@ -4468,7 +4473,8 @@ static const struct file_operations proc_APList_ops = {
         .read           = proc_read,
         .write          = proc_write,
         .open           = proc_APList_open,
-        .release        = proc_close
+        .release        = proc_close,
+        .llseek         = default_llseek,
 };
 
 static const struct file_operations proc_config_ops = {
@@ -4476,7 +4482,8 @@ static const struct file_operations proc_config_ops = {
         .read           = proc_read,
         .write          = proc_write,
         .open           = proc_config_open,
-        .release        = proc_close
+        .release        = proc_close,
+        .llseek         = default_llseek,
 };
 
 static const struct file_operations proc_wepkey_ops = {
@@ -4484,7 +4491,8 @@ static const struct file_operations proc_wepkey_ops = {
         .read           = proc_read,
         .write          = proc_write,
         .open           = proc_wepkey_open,
-        .release        = proc_close
+        .release        = proc_close,
+        .llseek         = default_llseek,
 };
 
 static struct proc_dir_entry *airo_entry;
diff --git a/drivers/net/wireless/ath/ath5k/debug.c b/drivers/net/wireless/ath/ath5k/debug.c
index 4cccc29964f6..fb339c3852ee 100644
--- a/drivers/net/wireless/ath/ath5k/debug.c
+++ b/drivers/net/wireless/ath/ath5k/debug.c
@@ -271,6 +271,7 @@ static const struct file_operations fops_beacon = {
         .write = write_file_beacon,
         .open = ath5k_debugfs_open,
         .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 
@@ -290,6 +291,7 @@ static const struct file_operations fops_reset = {
         .write = write_file_reset,
         .open = ath5k_debugfs_open,
         .owner = THIS_MODULE,
+        .llseek = noop_llseek,
 };
 
 
@@ -369,6 +371,7 @@ static const struct file_operations fops_debug = {
         .write = write_file_debug,
         .open = ath5k_debugfs_open,
         .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 
@@ -480,6 +483,7 @@ static const struct file_operations fops_antenna = {
         .write = write_file_antenna,
         .open = ath5k_debugfs_open,
         .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 
@@ -591,6 +595,7 @@ static const struct file_operations fops_frameerrors = {
         .write = write_file_frameerrors,
         .open = ath5k_debugfs_open,
         .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 
@@ -748,6 +753,7 @@ static const struct file_operations fops_ani = {
         .write = write_file_ani,
         .open = ath5k_debugfs_open,
         .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 
@@ -811,6 +817,7 @@ static const struct file_operations fops_queue = {
         .write = write_file_queue,
         .open = ath5k_debugfs_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 54aae931424e..cf500bf25ad5 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -71,7 +71,8 @@ static const struct file_operations fops_debug = {
         .read = read_file_debug,
         .write = write_file_debug,
         .open = ath9k_debugfs_open,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 #endif
@@ -116,7 +117,8 @@ static const struct file_operations fops_tx_chainmask = {
         .read = read_file_tx_chainmask,
         .write = write_file_tx_chainmask,
         .open = ath9k_debugfs_open,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 
@@ -158,7 +160,8 @@ static const struct file_operations fops_rx_chainmask = {
         .read = read_file_rx_chainmask,
         .write = write_file_rx_chainmask,
         .open = ath9k_debugfs_open,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 
@@ -259,7 +262,8 @@ 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,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 
@@ -375,7 +379,8 @@ 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,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 void ath_debug_stat_rc(struct ath_softc *sc, int final_rate)
@@ -464,7 +469,8 @@ 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,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 static const char * ath_wiphy_state_str(enum ath_wiphy_state state)
@@ -623,7 +629,8 @@ static const struct file_operations fops_wiphy = {
         .read = read_file_wiphy,
         .write = write_file_wiphy,
         .open = ath9k_debugfs_open,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 #define PR(str, elem)                                                   \
@@ -702,7 +709,8 @@ void ath_debug_stat_tx(struct ath_softc *sc, struct ath_txq *txq,
 static const struct file_operations fops_xmit = {
         .read = read_file_xmit,
         .open = ath9k_debugfs_open,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
@@ -814,7 +822,8 @@ 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,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
@@ -852,7 +861,8 @@ static const struct file_operations fops_regidx = {
         .read = read_file_regidx,
         .write = write_file_regidx,
         .open = ath9k_debugfs_open,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 static ssize_t read_file_regval(struct file *file, char __user *user_buf,
@@ -894,7 +904,8 @@ static const struct file_operations fops_regval = {
         .read = read_file_regval,
         .write = write_file_regval,
         .open = ath9k_debugfs_open,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 int ath9k_init_debug(struct ath_hw *ah)
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index 7d09b4b17bbd..bc2ca7d898e9 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -536,7 +536,8 @@ 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 = ath9k_debugfs_open,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
@@ -584,7 +585,8 @@ 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,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 static ssize_t read_file_recv(struct file *file, char __user *user_buf,
@@ -613,7 +615,8 @@ 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,
-        .owner = THIS_MODULE
+        .owner = THIS_MODULE,
+        .llseek = default_llseek,
 };
 
 int ath9k_htc_init_debug(struct ath_hw *ah)
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
index 8e84a08ff951..293e1dbc166c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-3945-rs.c
@@ -873,6 +873,7 @@ static ssize_t iwl3945_sta_dbgfs_stats_table_read(struct file *file,
 static const struct file_operations rs_sta_dbgfs_stats_table_ops = {
         .read = iwl3945_sta_dbgfs_stats_table_read,
         .open = iwl3945_open_file_generic,
+        .llseek = default_llseek,
 };
 
 static void iwl3945_add_debugfs(void *priv, void *priv_sta,
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
index 23e5c42e7d7e..a4378ba31ef6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-rs.c
@@ -2873,6 +2873,7 @@ 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,
+        .llseek = default_llseek,
 };
 static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
                         char __user *user_buf, size_t count, loff_t *ppos)
@@ -2915,6 +2916,7 @@ 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,
+        .llseek = default_llseek,
 };
 
 static ssize_t rs_sta_dbgfs_rate_scale_data_read(struct file *file,
@@ -2946,6 +2948,7 @@ 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,
+        .llseek = default_llseek,
 };
 
 static void rs_add_debugfs(void *priv, void *priv_sta,
diff --git a/drivers/net/wireless/iwmc3200wifi/debugfs.c b/drivers/net/wireless/iwmc3200wifi/debugfs.c
index 53b0b7711f02..0a0cc9667cd6 100644
--- a/drivers/net/wireless/iwmc3200wifi/debugfs.c
+++ b/drivers/net/wireless/iwmc3200wifi/debugfs.c
@@ -402,24 +402,28 @@ static const struct file_operations iwm_debugfs_txq_fops = {
         .owner =        THIS_MODULE,
         .open =         iwm_generic_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,
         .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,
         .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,
         .read =         iwm_debugfs_fw_err_read,
+        .llseek =       default_llseek,
 };
 
 void iwm_debugfs_init(struct iwm_priv *iwm)
diff --git a/drivers/net/wireless/iwmc3200wifi/sdio.c b/drivers/net/wireless/iwmc3200wifi/sdio.c
index edcb52330cf5..56383e7be835 100644
--- a/drivers/net/wireless/iwmc3200wifi/sdio.c
+++ b/drivers/net/wireless/iwmc3200wifi/sdio.c
@@ -364,6 +364,7 @@ static const struct file_operations iwm_debugfs_sdio_fops = {
         .owner =        THIS_MODULE,
         .open =         iwm_debugfs_sdio_open,
         .read =         iwm_debugfs_sdio_read,
+        .llseek =       default_llseek,
 };
 
 static void if_sdio_debugfs_init(struct iwm_priv *iwm, struct dentry *parent_dir)
diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index 74e94cc10e01..fbf3b0332bb7 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -962,6 +962,7 @@ static const struct file_operations lbs_debug_fops = {
         .open = open_file_generic,
         .write = lbs_debugfs_write,
         .read = lbs_debugfs_read,
+        .llseek = default_llseek,
 };
 
 /**
diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
index 88560d0ae50a..dab30a8c7470 100644
--- a/drivers/net/wireless/ray_cs.c
+++ b/drivers/net/wireless/ray_cs.c
@@ -2802,6 +2802,7 @@ static ssize_t ray_cs_essid_proc_write(struct file *file,
 static const struct file_operations ray_cs_essid_proc_fops = {
         .owner          = THIS_MODULE,
         .write          = ray_cs_essid_proc_write,
+        .llseek         = noop_llseek,
 };
 
 static ssize_t int_proc_write(struct file *file, const char __user *buffer,
@@ -2835,6 +2836,7 @@ static ssize_t int_proc_write(struct file *file, const char __user *buffer,
 static const struct file_operations int_proc_fops = {
         .owner          = THIS_MODULE,
         .write          = int_proc_write,
+        .llseek         = noop_llseek,
 };
 #endif
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00debug.c b/drivers/net/wireless/rt2x00/rt2x00debug.c
index 7d6f19a2805e..cea81e4c5c82 100644
--- a/drivers/net/wireless/rt2x00/rt2x00debug.c
+++ b/drivers/net/wireless/rt2x00/rt2x00debug.c
@@ -315,6 +315,7 @@ static const struct file_operations rt2x00debug_fop_queue_dump = {
         .poll           = rt2x00debug_poll_queue_dump,
         .open           = rt2x00debug_open_queue_dump,
         .release        = rt2x00debug_release_queue_dump,
+        .llseek         = default_llseek,
 };
 
 static ssize_t rt2x00debug_read_queue_stats(struct file *file,
@@ -371,6 +372,7 @@ static const struct file_operations rt2x00debug_fop_queue_stats = {
         .read           = rt2x00debug_read_queue_stats,
         .open           = rt2x00debug_file_open,
         .release        = rt2x00debug_file_release,
+        .llseek         = default_llseek,
 };
 
 #ifdef CONFIG_RT2X00_LIB_CRYPTO
@@ -423,6 +425,7 @@ static const struct file_operations rt2x00debug_fop_crypto_stats = {
         .read           = rt2x00debug_read_crypto_stats,
         .open           = rt2x00debug_file_open,
         .release        = rt2x00debug_file_release,
+        .llseek         = default_llseek,
 };
 #endif
 
@@ -543,6 +546,7 @@ static const struct file_operations rt2x00debug_fop_dev_flags = {
         .read           = rt2x00debug_read_dev_flags,
         .open           = rt2x00debug_file_open,
         .release        = rt2x00debug_file_release,
+        .llseek         = default_llseek,
 };
 
 static struct dentry *rt2x00debug_create_file_driver(const char *name,
diff --git a/drivers/net/wireless/wl12xx/wl1251_debugfs.c b/drivers/net/wireless/wl12xx/wl1251_debugfs.c
index a4ae7c4d94b5..fa620a5e5303 100644
--- a/drivers/net/wireless/wl12xx/wl1251_debugfs.c
+++ b/drivers/net/wireless/wl12xx/wl1251_debugfs.c
@@ -238,6 +238,7 @@ 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,
+        .llseek = generic_file_llseek,
 };
 
 static ssize_t tx_queue_status_read(struct file *file, char __user *userbuf,
@@ -259,6 +260,7 @@ 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,
+        .llseek = generic_file_llseek,
 };
 
 static void wl1251_debugfs_delete_files(struct wl1251 *wl)
diff --git a/drivers/net/wireless/wl12xx/wl1271_debugfs.c b/drivers/net/wireless/wl12xx/wl1271_debugfs.c
index 6e25303a8e7f..66c2b90ddfd4 100644
--- a/drivers/net/wireless/wl12xx/wl1271_debugfs.c
+++ b/drivers/net/wireless/wl12xx/wl1271_debugfs.c
@@ -239,6 +239,7 @@ 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,
+        .llseek = default_llseek,
 };
 
 static ssize_t gpio_power_read(struct file *file, char __user *user_buf,
@@ -293,7 +294,8 @@ out:
 static const struct file_operations gpio_power_ops = {
         .read = gpio_power_read,
         .write = gpio_power_write,
-        .open = wl1271_open_file_generic
+        .open = wl1271_open_file_generic,
+        .llseek = default_llseek,
 };
 
 static void wl1271_debugfs_delete_files(struct wl1271 *wl)
diff --git a/drivers/oprofile/oprofile_files.c b/drivers/oprofile/oprofile_files.c
index bbd7516e0869..9bb4d4bdc237 100644
--- a/drivers/oprofile/oprofile_files.c
+++ b/drivers/oprofile/oprofile_files.c
@@ -59,6 +59,7 @@ static ssize_t timeout_write(struct file *file, char const __user *buf,
 static const struct file_operations timeout_fops = {
         .read           = timeout_read,
         .write          = timeout_write,
+        .llseek         = default_llseek,
 };
 
 #endif
@@ -93,7 +94,8 @@ static ssize_t depth_write(struct file *file, char const __user *buf, size_t cou
 
 static const struct file_operations depth_fops = {
         .read           = depth_read,
-        .write          = depth_write
+        .write          = depth_write,
+        .llseek         = default_llseek,
 };
 
 
@@ -105,6 +107,7 @@ static ssize_t pointer_size_read(struct file *file, char __user *buf, size_t cou
 
 static const struct file_operations pointer_size_fops = {
         .read           = pointer_size_read,
+        .llseek         = default_llseek,
 };
 
 
@@ -116,6 +119,7 @@ static ssize_t cpu_type_read(struct file *file, char __user *buf, size_t count,
 
 static const struct file_operations cpu_type_fops = {
         .read           = cpu_type_read,
+        .llseek         = default_llseek,
 };
 
 
@@ -151,6 +155,7 @@ static ssize_t enable_write(struct file *file, char const __user *buf, size_t co
 static const struct file_operations enable_fops = {
         .read           = enable_read,
         .write          = enable_write,
+        .llseek         = default_llseek,
 };
 
 
@@ -163,6 +168,7 @@ static ssize_t dump_write(struct file *file, char const __user *buf, size_t coun
 
 static const struct file_operations dump_fops = {
         .write          = dump_write,
+        .llseek         = noop_llseek,
 };
 
 void oprofile_create_files(struct super_block *sb, struct dentry *root)
diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c
index 2766a6d3c2e9..6b6a1f71957d 100644
--- a/drivers/oprofile/oprofilefs.c
+++ b/drivers/oprofile/oprofilefs.c
@@ -117,12 +117,14 @@ static const struct file_operations ulong_fops = {
         .read           = ulong_read_file,
         .write          = ulong_write_file,
         .open           = default_open,
+        .llseek         = default_llseek,
 };
 
 
 static const struct file_operations ulong_ro_fops = {
         .read           = ulong_read_file,
         .open           = default_open,
+        .llseek         = default_llseek,
 };
 
 
@@ -183,6 +185,7 @@ 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,
+        .llseek         = default_llseek,
 };
 
 
diff --git a/drivers/pci/pcie/aer/aer_inject.c b/drivers/pci/pcie/aer/aer_inject.c
index 909924692b8a..b3cf6223f63a 100644
--- a/drivers/pci/pcie/aer/aer_inject.c
+++ b/drivers/pci/pcie/aer/aer_inject.c
@@ -472,6 +472,7 @@ static ssize_t aer_inject_write(struct file *filp, const char __user *ubuf,
 static const struct file_operations aer_inject_fops = {
         .write = aer_inject_write,
         .owner = THIS_MODULE,
+        .llseek = noop_llseek,
 };
 
 static struct miscdevice aer_inject_device = {
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index e3154ff7a39f..f200677851b8 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -2360,6 +2360,7 @@ static const struct file_operations sonypi_misc_fops = {
         .release        = sonypi_misc_release,
         .fasync         = sonypi_misc_fasync,
         .unlocked_ioctl = sonypi_misc_ioctl,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice sonypi_misc_device = {
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index d60557cae8ef..ef151ce04430 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -748,6 +748,7 @@ static const struct file_operations wdt_fops = {
         .write  = wdt_write,
         .open   = wdt_open,
         .release = wdt_release,
+        .llseek = no_llseek,
 };
 
 static struct miscdevice wdt_dev = {
diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c
index 7158f9528ecc..c71d89dba302 100644
--- a/drivers/s390/block/dasd_eer.c
+++ b/drivers/s390/block/dasd_eer.c
@@ -670,6 +670,7 @@ static const struct file_operations dasd_eer_fops = {
         .read           = &dasd_eer_read,
         .poll           = &dasd_eer_poll,
         .owner          = THIS_MODULE,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice *dasd_eer_dev = NULL;
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index 857dfcb7b359..eb28fb01a38a 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -520,6 +520,7 @@ static const struct file_operations fs3270_fops = {
         .compat_ioctl    = fs3270_ioctl,        /* ioctl */
         .open            = fs3270_open,         /* open */
         .release         = fs3270_close,        /* release */
+        .llseek         = no_llseek,
 };
 
 /*
diff --git a/drivers/s390/char/monreader.c b/drivers/s390/char/monreader.c
index e021ec663ef9..5b8b8592d311 100644
--- a/drivers/s390/char/monreader.c
+++ b/drivers/s390/char/monreader.c
@@ -447,6 +447,7 @@ static const struct file_operations mon_fops = {
         .release = &mon_close,
         .read    = &mon_read,
         .poll    = &mon_poll,
+        .llseek  = noop_llseek,
 };
 
 static struct miscdevice mon_dev = {
diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c
index 572a1e7fd099..e0702d3ea33b 100644
--- a/drivers/s390/char/monwriter.c
+++ b/drivers/s390/char/monwriter.c
@@ -274,6 +274,7 @@ static const struct file_operations monwrite_fops = {
         .open    = &monwrite_open,
         .release = &monwrite_close,
         .write   = &monwrite_write,
+        .llseek  = noop_llseek,
 };
 
 static struct miscdevice mon_dev = {
diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index 539045acaad4..883e2db02bd3 100644
--- a/drivers/s390/char/tape_char.c
+++ b/drivers/s390/char/tape_char.c
@@ -53,6 +53,7 @@ static const struct file_operations tape_fops =
 #endif
         .open = tapechar_open,
         .release = tapechar_release,
+        .llseek = no_llseek,
 };
 
 static int tapechar_major = TAPECHAR_MAJOR;
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 04e532eec032..0e7cb1a84151 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -177,6 +177,7 @@ static const struct file_operations vmcp_fops = {
         .write          = vmcp_write,
         .unlocked_ioctl = vmcp_ioctl,
         .compat_ioctl   = vmcp_ioctl,
+        .llseek         = no_llseek,
 };
 
 static struct miscdevice vmcp_dev = {
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index e40a1b892866..0d6dc4b92cc2 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -97,6 +97,7 @@ static const struct file_operations vmlogrdr_fops = {
         .open    = vmlogrdr_open,
         .release = vmlogrdr_release,
         .read    = vmlogrdr_read,
+        .llseek  = no_llseek,
 };
 
 
diff --git a/drivers/s390/char/vmwatchdog.c b/drivers/s390/char/vmwatchdog.c
index e13508c98b1a..12ef9121d4f0 100644
--- a/drivers/s390/char/vmwatchdog.c
+++ b/drivers/s390/char/vmwatchdog.c
@@ -297,6 +297,7 @@ static const struct file_operations vmwdt_fops = {
         .unlocked_ioctl = &vmwdt_ioctl,
         .write   = &vmwdt_write,
         .owner   = THIS_MODULE,
+        .llseek  = noop_llseek,
 };
 
 static struct miscdevice vmwdt_dev = {
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index f5ea3384a4b9..3b94044027c2 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -459,6 +459,7 @@ static const struct file_operations zcore_memmap_fops = {
         .read           = zcore_memmap_read,
         .open           = zcore_memmap_open,
         .release        = zcore_memmap_release,
+        .llseek         = no_llseek,
 };
 
 static ssize_t zcore_reipl_write(struct file *filp, const char __user *buf,
@@ -486,6 +487,7 @@ static const struct file_operations zcore_reipl_fops = {
         .write          = zcore_reipl_write,
         .open           = zcore_reipl_open,
         .release        = zcore_reipl_release,
+        .llseek         = no_llseek,
 };
 
 #ifdef CONFIG_32BIT
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index a83877c664a6..f2b77e7bfc6f 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -806,6 +806,7 @@ static const struct file_operations chsc_fops = {
         .open = nonseekable_open,
         .unlocked_ioctl = chsc_ioctl,
         .compat_ioctl = chsc_ioctl,
+        .llseek = no_llseek,
 };
 
 static struct miscdevice chsc_misc_device = {
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index ac94ac751459..ca8e1c240c3c 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -1067,6 +1067,7 @@ static ssize_t cio_settle_write(struct file *file, const char __user *buf,
 static const struct file_operations cio_settle_proc_fops = {
         .open = nonseekable_open,
         .write = cio_settle_write,
+        .llseek = no_llseek,
 };
 
 static int __init cio_settle_init(void)
diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c
index 41e0aaefafd5..f5221749d180 100644
--- a/drivers/s390/crypto/zcrypt_api.c
+++ b/drivers/s390/crypto/zcrypt_api.c
@@ -897,7 +897,8 @@ static const struct file_operations zcrypt_fops = {
         .compat_ioctl   = zcrypt_compat_ioctl,
 #endif
         .open           = zcrypt_open,
-        .release        = zcrypt_release
+        .release        = zcrypt_release,
+        .llseek         = no_llseek,
 };
 
 /*
diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c
index fcbd2b756da4..1838cda68ba8 100644
--- a/drivers/s390/scsi/zfcp_cfdc.c
+++ b/drivers/s390/scsi/zfcp_cfdc.c
@@ -251,8 +251,9 @@ static const struct file_operations zfcp_cfdc_fops = {
         .open = nonseekable_open,
         .unlocked_ioctl = zfcp_cfdc_dev_ioctl,
 #ifdef CONFIG_COMPAT
-        .compat_ioctl = zfcp_cfdc_dev_ioctl
+        .compat_ioctl = zfcp_cfdc_dev_ioctl,
 #endif
+        .llseek = no_llseek,
 };
 
 struct miscdevice zfcp_cfdc_misc = {
diff --git a/drivers/sbus/char/display7seg.c b/drivers/sbus/char/display7seg.c
index 1690e53fb84a..55f71ea9c418 100644
--- a/drivers/sbus/char/display7seg.c
+++ b/drivers/sbus/char/display7seg.c
@@ -162,6 +162,7 @@ static const struct file_operations d7s_fops = {
         .compat_ioctl =         d7s_ioctl,
         .open =                 d7s_open,
         .release =              d7s_release,
+        .llseek = noop_llseek,
 };
 
 static struct miscdevice d7s_miscdev = {
diff --git a/drivers/sbus/char/envctrl.c b/drivers/sbus/char/envctrl.c
index 078e5f4520ef..8ce414e39489 100644
--- a/drivers/sbus/char/envctrl.c
+++ b/drivers/sbus/char/envctrl.c
@@ -720,6 +720,7 @@ static const struct file_operations envctrl_fops = {
 #endif
         .open =                 envctrl_open,
         .release =              envctrl_release,
+        .llseek =               noop_llseek,
 };      
 
 static struct miscdevice envctrl_dev = {
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index e20b7bdd4c78..67aad69cfbc2 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -222,7 +222,8 @@ static const struct file_operations twa_fops = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = twa_chrdev_ioctl,
         .open           = twa_chrdev_open,
-        .release        = NULL
+        .release        = NULL,
+        .llseek         = noop_llseek,
 };
 
 /* This function will complete an aen request from the isr */
diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c
index f481e734aad4..7afac93d889f 100644
--- a/drivers/scsi/3w-sas.c
+++ b/drivers/scsi/3w-sas.c
@@ -890,7 +890,8 @@ static const struct file_operations twl_fops = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = twl_chrdev_ioctl,
         .open           = twl_chrdev_open,
-        .release        = NULL
+        .release        = NULL,
+        .llseek         = noop_llseek,
 };
 
 /* This function passes sense data from firmware to scsi layer */
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index 30d735ad35b5..5a2337306037 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -1059,7 +1059,8 @@ static const struct file_operations tw_fops = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = tw_chrdev_ioctl,
         .open           = tw_chrdev_open,
-        .release        = NULL
+        .release        = NULL,
+        .llseek         = noop_llseek,
 };
 
 /* This function will free up device extension resources */
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index cad6f9abaeb9..13af86eec96e 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1039,6 +1039,7 @@ static const struct file_operations aac_cfg_fops = {
         .compat_ioctl   = aac_compat_cfg_ioctl,
 #endif
         .open           = aac_cfg_open,
+        .llseek         = noop_llseek,
 };
 
 static struct scsi_host_template aac_driver_template = {
diff --git a/drivers/scsi/ch.c b/drivers/scsi/ch.c
index d6532187f616..e40c9f7a002a 100644
--- a/drivers/scsi/ch.c
+++ b/drivers/scsi/ch.c
@@ -981,6 +981,7 @@ static const struct file_operations changer_fops = {
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = ch_ioctl_compat,
 #endif
+        .llseek         = noop_llseek,
 };
 
 static int __init init_ch_module(void)
diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index ffc1edf5e80d..7a61206ed1c0 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -126,6 +126,7 @@ static const struct file_operations adpt_fops = {
 #ifdef CONFIG_COMPAT
         .compat_ioctl   = compat_adpt_ioctl,
 #endif
+        .llseek         = noop_llseek,
 };
 
 /* Structures and definitions for synchronous message posting.
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index b860d650a563..9886586df01f 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -372,6 +372,7 @@ static const struct file_operations gdth_fops = {
     .unlocked_ioctl   = gdth_unlocked_ioctl,
     .open    = gdth_open,
     .release = gdth_close,
+    .llseek = noop_llseek,
 };
 
 #include "gdth_proc.h"
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 0b6e3228610a..aac80f7bb999 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -101,6 +101,7 @@ static const struct file_operations megadev_fops = {
         .owner          = THIS_MODULE,
         .unlocked_ioctl = megadev_unlocked_ioctl,
         .open           = megadev_open,
+        .llseek         = noop_llseek,
 };
 
 /*
diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c
index 41f82f76d884..ab801232d777 100644
--- a/drivers/scsi/megaraid/megaraid_mm.c
+++ b/drivers/scsi/megaraid/megaraid_mm.c
@@ -75,6 +75,7 @@ static const struct file_operations lsi_fops = {
         .compat_ioctl = mraid_mm_compat_ioctl,
 #endif
         .owner  = THIS_MODULE,
+        .llseek = noop_llseek,
 };
 
 static struct miscdevice megaraid_mm_dev = {
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index 99e4478c3f3e..209cc87b9a32 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -3957,6 +3957,7 @@ static const struct file_operations megasas_mgmt_fops = {
 #ifdef CONFIG_COMPAT
         .compat_ioctl = megasas_mgmt_compat_ioctl,
 #endif
+        .llseek = noop_llseek,
 };
 
 /*
diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
index b774973f0765..9a4e584ae3cc 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
@@ -2952,6 +2952,7 @@ static const struct file_operations ctl_fops = {
 #ifdef CONFIG_COMPAT
         .compat_ioctl = _ctl_ioctl_compat,
 #endif
+        .llseek = noop_llseek,
 };
 
 static struct miscdevice ctl_dev = {
diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
index ffdd9fdb9995..b31a8e3841d7 100644
--- a/drivers/scsi/osd/osd_uld.c
+++ b/drivers/scsi/osd/osd_uld.c
@@ -182,6 +182,7 @@ static const struct file_operations osd_fops = {
         .open           = osd_uld_open,
         .release        = osd_uld_release,
         .unlocked_ioctl = osd_uld_ioctl,
+        .llseek         = noop_llseek,
 };
 
 struct osd_dev *osduld_path_lookup(const char *name)
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index ecc45c8b4e6b..4b8765785aeb 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -4165,6 +4165,7 @@ static const struct file_operations pmcraid_fops = {
 #ifdef CONFIG_COMPAT
         .compat_ioctl = pmcraid_chr_ioctl,
 #endif
+        .llseek = noop_llseek,
 };
 
 
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 1e4bff695254..9946fac54255 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -3948,6 +3948,7 @@ static struct pci_driver qla2xxx_pci_driver = {
 
 static struct file_operations apidev_fops = {
         .owner = THIS_MODULE,
+        .llseek = noop_llseek,
 };
 
 /**
diff --git a/drivers/scsi/scsi_tgt_if.c b/drivers/scsi/scsi_tgt_if.c
index a87e21c35ef2..bbb02f6e917c 100644
--- a/drivers/scsi/scsi_tgt_if.c
+++ b/drivers/scsi/scsi_tgt_if.c
@@ -333,6 +333,7 @@ static const struct file_operations tgt_fops = {
         .poll           = tgt_poll,
         .write          = tgt_write,
         .mmap           = tgt_mmap,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice tgt_miscdev = {
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 78d616315d8e..00baea1e2dbf 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1351,6 +1351,7 @@ static const struct file_operations sg_fops = {
         .mmap = sg_mmap,
         .release = sg_release,
         .fasync = sg_fasync,
+        .llseek = no_llseek,
 };
 
 static struct class *sg_sysfs_class;
diff --git a/drivers/serial/mfd.c b/drivers/serial/mfd.c
index bc9af503907f..6703f3e802a2 100644
--- a/drivers/serial/mfd.c
+++ b/drivers/serial/mfd.c
@@ -227,12 +227,14 @@ static const struct file_operations port_regs_ops = {
         .owner          = THIS_MODULE,
         .open           = hsu_show_regs_open,
         .read           = port_show_regs,
+        .llseek         = default_llseek,
 };
 
 static const struct file_operations dma_regs_ops = {
         .owner          = THIS_MODULE,
         .open           = hsu_show_regs_open,
         .read           = dma_show_regs,
+        .llseek         = default_llseek,
 };
 
 static int hsu_debugfs_init(struct hsu_port *hsu)
diff --git a/drivers/spi/dw_spi.c b/drivers/spi/dw_spi.c
index d256cb00604c..a32aa66d66bf 100644
--- a/drivers/spi/dw_spi.c
+++ b/drivers/spi/dw_spi.c
@@ -131,6 +131,7 @@ static const struct file_operations mrst_spi_regs_ops = {
         .owner          = THIS_MODULE,
         .open           = spi_show_regs_open,
         .read           = spi_show_regs,
+        .llseek         = default_llseek,
 };
 
 static int mrst_spi_debugfs_init(struct dw_spi *dws)
diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index ea1bec3c9a13..4e6245e67995 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -545,6 +545,7 @@ static const struct file_operations spidev_fops = {
         .unlocked_ioctl = spidev_ioctl,
         .open =         spidev_open,
         .release =      spidev_release,
+        .llseek =       no_llseek,
 };
 
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 14091313cebb..fecb89e8c663 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -1922,6 +1922,7 @@ const struct file_operations comedi_fops = {
         .mmap = comedi_mmap,
         .poll = comedi_poll,
         .fasync = comedi_fasync,
+        .llseek = noop_llseek,
 };
 
 struct class *comedi_class;
diff --git a/drivers/staging/crystalhd/crystalhd_lnx.c b/drivers/staging/crystalhd/crystalhd_lnx.c
index fbb80f09a3d9..af258991fe7f 100644
--- a/drivers/staging/crystalhd/crystalhd_lnx.c
+++ b/drivers/staging/crystalhd/crystalhd_lnx.c
@@ -351,6 +351,7 @@ static const struct file_operations chd_dec_fops = {
         .unlocked_ioctl = chd_dec_ioctl,
         .open    = chd_dec_open,
         .release = chd_dec_close,
+        .llseek = noop_llseek,
 };
 
 static int __devinit chd_dec_init_chdev(struct crystalhd_adp *adp)
diff --git a/drivers/staging/dream/camera/msm_camera.c b/drivers/staging/dream/camera/msm_camera.c
index 81bd71fd816e..de4ab61efd4b 100644
--- a/drivers/staging/dream/camera/msm_camera.c
+++ b/drivers/staging/dream/camera/msm_camera.c
@@ -1941,6 +1941,7 @@ static const struct file_operations msm_fops_config = {
         .open = msm_open,
         .unlocked_ioctl = msm_ioctl_config,
         .release = msm_release_config,
+        .llseek = no_llseek,
 };
 
 static const struct file_operations msm_fops_control = {
@@ -1948,6 +1949,7 @@ static const struct file_operations msm_fops_control = {
         .open = msm_open_control,
         .unlocked_ioctl = msm_ioctl_control,
         .release = msm_release_control,
+        .llseek = no_llseek,
 };
 
 static const struct file_operations msm_fops_frame = {
@@ -1956,6 +1958,7 @@ static const struct file_operations msm_fops_frame = {
         .unlocked_ioctl = msm_ioctl_frame,
         .release = msm_release_frame,
         .poll = msm_poll_frame,
+        .llseek = no_llseek,
 };
 
 static int msm_setup_cdev(struct msm_device *msm,
diff --git a/drivers/staging/dream/pmem.c b/drivers/staging/dream/pmem.c
index 7d6bbadd7fc7..3640d1f2376d 100644
--- a/drivers/staging/dream/pmem.c
+++ b/drivers/staging/dream/pmem.c
@@ -180,6 +180,7 @@ const struct file_operations pmem_fops = {
         .mmap = pmem_mmap,
         .open = pmem_open,
         .unlocked_ioctl = pmem_ioctl,
+        .llseek = noop_llseek,
 };
 
 static int get_id(struct file *file)
@@ -1204,6 +1205,7 @@ static ssize_t debug_read(struct file *file, char __user *buf, size_t count,
 static struct file_operations debug_fops = {
         .read = debug_read,
         .open = debug_open,
+        .llseek = default_llseek,
 };
 #endif
 
diff --git a/drivers/staging/dream/qdsp5/adsp_driver.c b/drivers/staging/dream/qdsp5/adsp_driver.c
index 8197765aae1e..28a6f8da9477 100644
--- a/drivers/staging/dream/qdsp5/adsp_driver.c
+++ b/drivers/staging/dream/qdsp5/adsp_driver.c
@@ -582,6 +582,7 @@ static struct file_operations adsp_fops = {
         .open = adsp_open,
         .unlocked_ioctl = adsp_ioctl,
         .release = adsp_release,
+        .llseek = no_llseek,
 };
 
 static void adsp_create(struct adsp_device *adev, const char *name,
diff --git a/drivers/staging/dream/qdsp5/audio_aac.c b/drivers/staging/dream/qdsp5/audio_aac.c
index a373f3522384..45f4c78ab6e7 100644
--- a/drivers/staging/dream/qdsp5/audio_aac.c
+++ b/drivers/staging/dream/qdsp5/audio_aac.c
@@ -1030,6 +1030,7 @@ static struct file_operations audio_aac_fops = {
         .read = audio_read,
         .write = audio_write,
         .unlocked_ioctl = audio_ioctl,
+        .llseek = noop_llseek,
 };
 
 struct miscdevice audio_aac_misc = {
diff --git a/drivers/staging/dream/qdsp5/audio_amrnb.c b/drivers/staging/dream/qdsp5/audio_amrnb.c
index 07b79d5836e5..402bbc13281a 100644
--- a/drivers/staging/dream/qdsp5/audio_amrnb.c
+++ b/drivers/staging/dream/qdsp5/audio_amrnb.c
@@ -841,6 +841,7 @@ static struct file_operations audio_amrnb_fops = {
         .read = audamrnb_read,
         .write = audamrnb_write,
         .unlocked_ioctl = audamrnb_ioctl,
+        .llseek = noop_llseek,
 };
 
 struct miscdevice audio_amrnb_misc = {
diff --git a/drivers/staging/dream/qdsp5/audio_evrc.c b/drivers/staging/dream/qdsp5/audio_evrc.c
index ad989ee87690..24a892647370 100644
--- a/drivers/staging/dream/qdsp5/audio_evrc.c
+++ b/drivers/staging/dream/qdsp5/audio_evrc.c
@@ -813,6 +813,7 @@ static struct file_operations audio_evrc_fops = {
         .read = audevrc_read,
         .write = audevrc_write,
         .unlocked_ioctl = audevrc_ioctl,
+        .llseek = noop_llseek,
 };
 
 struct miscdevice audio_evrc_misc = {
diff --git a/drivers/staging/dream/qdsp5/audio_in.c b/drivers/staging/dream/qdsp5/audio_in.c
index 6ae48e72d145..b51fa096074e 100644
--- a/drivers/staging/dream/qdsp5/audio_in.c
+++ b/drivers/staging/dream/qdsp5/audio_in.c
@@ -921,12 +921,14 @@ static struct file_operations audio_fops = {
         .read           = audio_in_read,
         .write          = audio_in_write,
         .unlocked_ioctl = audio_in_ioctl,
+        .llseek         = noop_llseek,
 };
 
 static struct file_operations audpre_fops = {
         .owner          = THIS_MODULE,
         .open           = audpre_open,
         .unlocked_ioctl = audpre_ioctl,
+        .llseek         = noop_llseek,
 };
 
 struct miscdevice audio_in_misc = {
diff --git a/drivers/staging/dream/qdsp5/audio_mp3.c b/drivers/staging/dream/qdsp5/audio_mp3.c
index 530e1f35eed3..409a19ce6039 100644
--- a/drivers/staging/dream/qdsp5/audio_mp3.c
+++ b/drivers/staging/dream/qdsp5/audio_mp3.c
@@ -948,6 +948,7 @@ static struct file_operations audio_mp3_fops = {
         .read           = audio_read,
         .write          = audio_write,
         .unlocked_ioctl = audio_ioctl,
+        .llseek         = noop_llseek,
 };
 
 struct miscdevice audio_mp3_misc = {
diff --git a/drivers/staging/dream/qdsp5/audio_out.c b/drivers/staging/dream/qdsp5/audio_out.c
index 76d7fa5667d5..d20e89541567 100644
--- a/drivers/staging/dream/qdsp5/audio_out.c
+++ b/drivers/staging/dream/qdsp5/audio_out.c
@@ -807,12 +807,14 @@ static struct file_operations audio_fops = {
         .read           = audio_read,
         .write          = audio_write,
         .unlocked_ioctl = audio_ioctl,
+        .llseek         = noop_llseek,
 };
 
 static struct file_operations audpp_fops = {
         .owner          = THIS_MODULE,
         .open           = audpp_open,
         .unlocked_ioctl = audpp_ioctl,
+        .llseek         = noop_llseek,
 };
 
 struct miscdevice audio_misc = {
diff --git a/drivers/staging/dream/qdsp5/audio_qcelp.c b/drivers/staging/dream/qdsp5/audio_qcelp.c
index effa96f34fdc..911bab416b85 100644
--- a/drivers/staging/dream/qdsp5/audio_qcelp.c
+++ b/drivers/staging/dream/qdsp5/audio_qcelp.c
@@ -824,6 +824,7 @@ static struct file_operations audio_qcelp_fops = {
         .read = audqcelp_read,
         .write = audqcelp_write,
         .unlocked_ioctl = audqcelp_ioctl,
+        .llseek = noop_llseek,
 };
 
 struct miscdevice audio_qcelp_misc = {
diff --git a/drivers/staging/dream/qdsp5/evlog.h b/drivers/staging/dream/qdsp5/evlog.h
index 922ce670a32a..e5ab86b9dd7c 100644
--- a/drivers/staging/dream/qdsp5/evlog.h
+++ b/drivers/staging/dream/qdsp5/evlog.h
@@ -123,6 +123,7 @@ static int ev_log_open(struct inode *inode, struct file *file)
 static const struct file_operations ev_log_ops = {
         .read = ev_log_read,
         .open = ev_log_open,
+        .llseek = default_llseek,
 };
 
 static int ev_log_init(struct ev_log *log)
diff --git a/drivers/staging/dream/qdsp5/snd.c b/drivers/staging/dream/qdsp5/snd.c
index 037d7ffb7e67..e0f2f7bca29e 100644
--- a/drivers/staging/dream/qdsp5/snd.c
+++ b/drivers/staging/dream/qdsp5/snd.c
@@ -247,6 +247,7 @@ static struct file_operations snd_fops = {
         .open           = snd_open,
         .release        = snd_release,
         .unlocked_ioctl = snd_ioctl,
+        .llseek         = noop_llseek,
 };
 
 struct miscdevice snd_misc = {
diff --git a/drivers/staging/frontier/alphatrack.c b/drivers/staging/frontier/alphatrack.c
index 4e52105e6070..689099b57fd2 100644
--- a/drivers/staging/frontier/alphatrack.c
+++ b/drivers/staging/frontier/alphatrack.c
@@ -641,6 +641,7 @@ static const struct file_operations usb_alphatrack_fops = {
         .open = usb_alphatrack_open,
         .release = usb_alphatrack_release,
         .poll = usb_alphatrack_poll,
+        .llseek = no_llseek,
 };
 
 /*
diff --git a/drivers/staging/frontier/tranzport.c b/drivers/staging/frontier/tranzport.c
index eed74f0fe0b6..3d12c1737edc 100644
--- a/drivers/staging/frontier/tranzport.c
+++ b/drivers/staging/frontier/tranzport.c
@@ -767,6 +767,7 @@ static const struct file_operations usb_tranzport_fops = {
         .open = usb_tranzport_open,
         .release = usb_tranzport_release,
         .poll = usb_tranzport_poll,
+        .llseek = no_llseek,
 };
 
 /*
diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c
index dd4d87a8bcaf..92a212f064bd 100644
--- a/drivers/staging/iio/industrialio-core.c
+++ b/drivers/staging/iio/industrialio-core.c
@@ -349,6 +349,7 @@ static const struct file_operations iio_event_chrdev_fileops = {
         .release = iio_event_chrdev_release,
         .open = iio_event_chrdev_open,
         .owner = THIS_MODULE,
+        .llseek = noop_llseek,
 };
 
 static void iio_event_dev_release(struct device *dev)
diff --git a/drivers/staging/iio/industrialio-ring.c b/drivers/staging/iio/industrialio-ring.c
index 6ab578e4f5f3..1c5f67253b82 100644
--- a/drivers/staging/iio/industrialio-ring.c
+++ b/drivers/staging/iio/industrialio-ring.c
@@ -133,6 +133,7 @@ static const struct file_operations iio_ring_fileops = {
         .release = iio_ring_release,
         .open = iio_ring_open,
         .owner = THIS_MODULE,
+        .llseek = noop_llseek,
 };
 
 /**
diff --git a/drivers/staging/lirc/lirc_imon.c b/drivers/staging/lirc/lirc_imon.c
index 66493253042e..ed5c5fe022c9 100644
--- a/drivers/staging/lirc/lirc_imon.c
+++ b/drivers/staging/lirc/lirc_imon.c
@@ -115,7 +115,8 @@ static const struct file_operations display_fops = {
         .owner          = THIS_MODULE,
         .open           = &display_open,
         .write          = &vfd_write,
-        .release        = &display_close
+        .release        = &display_close,
+        .llseek         = noop_llseek,
 };
 
 /*
diff --git a/drivers/staging/lirc/lirc_it87.c b/drivers/staging/lirc/lirc_it87.c
index ec11c0e949a0..543c5c3bf907 100644
--- a/drivers/staging/lirc/lirc_it87.c
+++ b/drivers/staging/lirc/lirc_it87.c
@@ -342,6 +342,7 @@ static const struct file_operations lirc_fops = {
         .unlocked_ioctl = lirc_ioctl,
         .open           = lirc_open,
         .release        = lirc_close,
+        .llseek         = noop_llseek,
 };
 
 static int set_use_inc(void *data)
diff --git a/drivers/staging/lirc/lirc_sasem.c b/drivers/staging/lirc/lirc_sasem.c
index 73166c3f581f..8f72a84f34ec 100644
--- a/drivers/staging/lirc/lirc_sasem.c
+++ b/drivers/staging/lirc/lirc_sasem.c
@@ -125,6 +125,7 @@ static const struct file_operations vfd_fops = {
         .write          = &vfd_write,
         .unlocked_ioctl = &vfd_ioctl,
         .release        = &vfd_close,
+        .llseek         = noop_llseek,
 };
 
 /* USB Device ID for Sasem USB Control Board */
diff --git a/drivers/staging/memrar/memrar_handler.c b/drivers/staging/memrar/memrar_handler.c
index a98b3f1f11e0..cfcaa8e5b8e6 100644
--- a/drivers/staging/memrar/memrar_handler.c
+++ b/drivers/staging/memrar/memrar_handler.c
@@ -890,6 +890,7 @@ static const struct file_operations memrar_fops = {
         .mmap           = memrar_mmap,
         .open           = memrar_open,
         .release        = memrar_release,
+        .llseek         = no_llseek,
 };
 
 static struct miscdevice memrar_miscdev = {
diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
index 3221814a856e..6885f9a46609 100644
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -1631,6 +1631,7 @@ static const struct file_operations keypad_fops = {
         .read    = keypad_read,         /* read */
         .open    = keypad_open,         /* open */
         .release = keypad_release,      /* close */
+        .llseek  = default_llseek,
 };
 
 static struct miscdevice keypad_dev = {
diff --git a/drivers/staging/tidspbridge/rmgr/drv_interface.c b/drivers/staging/tidspbridge/rmgr/drv_interface.c
index 7ee89492a755..7b3a7d04a109 100644
--- a/drivers/staging/tidspbridge/rmgr/drv_interface.c
+++ b/drivers/staging/tidspbridge/rmgr/drv_interface.c
@@ -144,6 +144,7 @@ static const struct file_operations bridge_fops = {
         .release = bridge_release,
         .unlocked_ioctl = bridge_ioctl,
         .mmap = bridge_mmap,
+        .llseek = noop_llseek,
 };
 
 #ifdef CONFIG_PM
diff --git a/drivers/telephony/ixj.c b/drivers/telephony/ixj.c
index b53deee25d74..5c6239e5aa21 100644
--- a/drivers/telephony/ixj.c
+++ b/drivers/telephony/ixj.c
@@ -6676,7 +6676,8 @@ static const struct file_operations ixj_fops =
         .poll           = ixj_poll,
         .unlocked_ioctl = ixj_ioctl,
         .release        = ixj_release,
-        .fasync         = ixj_fasync
+        .fasync         = ixj_fasync,
+        .llseek  = default_llseek,
 };
 
 static int ixj_linetest(IXJ *j)
diff --git a/drivers/telephony/phonedev.c b/drivers/telephony/phonedev.c
index f3873f650bb4..1915af201175 100644
--- a/drivers/telephony/phonedev.c
+++ b/drivers/telephony/phonedev.c
@@ -130,6 +130,7 @@ static const struct file_operations phone_fops =
 {
         .owner          = THIS_MODULE,
         .open           = phone_open,
+        .llseek         = noop_llseek,
 };
 
 /*
diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index bff1afbde5a4..4d3a6fd1a152 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -740,6 +740,7 @@ static const struct file_operations uio_fops = {
         .mmap           = uio_mmap,
         .poll           = uio_poll,
         .fasync         = uio_fasync,
+        .llseek         = noop_llseek,
 };
 
 static int uio_major_init(void)
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 094c76b5de17..6ee4451bfe2d 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -584,7 +584,8 @@ static const struct file_operations wdm_fops = {
         .open =         wdm_open,
         .flush =        wdm_flush,
         .release =      wdm_release,
-        .poll =         wdm_poll
+        .poll =         wdm_poll,
+        .llseek =       noop_llseek,
 };
 
 static struct usb_class_driver wdm_class = {
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index e325162859b0..9eca4053312e 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -1043,6 +1043,7 @@ static const struct file_operations usblp_fops = {
         .compat_ioctl =         usblp_ioctl,
         .open =         usblp_open,
         .release =      usblp_release,
+        .llseek =       noop_llseek,
 };
 
 static char *usblp_devnode(struct device *dev, mode_t *mode)
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 3e7c1b800ebb..6a54634ab823 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -987,6 +987,7 @@ static const struct file_operations fops = {
         .open           = usbtmc_open,
         .release        = usbtmc_release,
         .unlocked_ioctl = usbtmc_ioctl,
+        .llseek         = default_llseek,
 };
 
 static struct usb_class_driver usbtmc_class = {
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index f06f5dbc8cdc..580bcd396839 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -59,6 +59,7 @@ static int usb_open(struct inode * inode, struct file * file)
 static const struct file_operations usb_fops = {
         .owner =        THIS_MODULE,
         .open =         usb_open,
+        .llseek =       noop_llseek,
 };
 
 static struct usb_class {
diff --git a/drivers/usb/gadget/f_hid.c b/drivers/usb/gadget/f_hid.c
index 53e120208e99..2b98bd26364b 100644
--- a/drivers/usb/gadget/f_hid.c
+++ b/drivers/usb/gadget/f_hid.c
@@ -451,6 +451,7 @@ const struct file_operations f_hidg_fops = {
         .write          = f_hidg_write,
         .read           = f_hidg_read,
         .poll           = f_hidg_poll,
+        .llseek         = noop_llseek,
 };
 
 static int __init hidg_bind(struct usb_configuration *c, struct usb_function *f)
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index cf241c371a71..327a92a137b4 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -884,7 +884,8 @@ static const struct file_operations printer_io_operations = {
         .fsync =        printer_fsync,
         .poll =         printer_poll,
         .unlocked_ioctl = printer_ioctl,
-        .release =      printer_close
+        .release =      printer_close,
+        .llseek =       noop_llseek,
 };
 
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index 76b7fd2d838a..86afdc73322f 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -369,18 +369,21 @@ static const struct file_operations debug_async_fops = {
         .open           = debug_async_open,
         .read           = debug_output,
         .release        = debug_close,
+        .llseek         = default_llseek,
 };
 static const struct file_operations debug_periodic_fops = {
         .owner          = THIS_MODULE,
         .open           = debug_periodic_open,
         .read           = debug_output,
         .release        = debug_close,
+        .llseek         = default_llseek,
 };
 static const struct file_operations debug_registers_fops = {
         .owner          = THIS_MODULE,
         .open           = debug_registers_open,
         .read           = debug_output,
         .release        = debug_close,
+        .llseek         = default_llseek,
 };
 static const struct file_operations debug_lpm_fops = {
         .owner          = THIS_MODULE,
@@ -388,6 +391,7 @@ static const struct file_operations debug_lpm_fops = {
         .read           = debug_lpm_read,
         .write          = debug_lpm_write,
         .release        = debug_lpm_close,
+        .llseek         = noop_llseek,
 };
 
 static struct dentry *ehci_debug_root;
diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c
index 36abd2baa3ea..d7d34492934a 100644
--- a/drivers/usb/host/ohci-dbg.c
+++ b/drivers/usb/host/ohci-dbg.c
@@ -413,18 +413,21 @@ static const struct file_operations debug_async_fops = {
         .open           = debug_async_open,
         .read           = debug_output,
         .release        = debug_close,
+        .llseek         = default_llseek,
 };
 static const struct file_operations debug_periodic_fops = {
         .owner          = THIS_MODULE,
         .open           = debug_periodic_open,
         .read           = debug_output,
         .release        = debug_close,
+        .llseek         = default_llseek,
 };
 static const struct file_operations debug_registers_fops = {
         .owner          = THIS_MODULE,
         .open           = debug_registers_open,
         .read           = debug_output,
         .release        = debug_close,
+        .llseek         = default_llseek,
 };
 
 static struct dentry *ohci_debug_root;
diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c
index e192e8f7c560..575b56c79e97 100644
--- a/drivers/usb/image/mdc800.c
+++ b/drivers/usb/image/mdc800.c
@@ -963,6 +963,7 @@ static const struct file_operations mdc800_device_ops =
         .write =        mdc800_device_write,
         .open =         mdc800_device_open,
         .release =      mdc800_device_release,
+        .llseek =       noop_llseek,
 };
 
 
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 801324af9470..44f8b9225054 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -679,6 +679,7 @@ static const struct file_operations adu_fops = {
         .write = adu_write,
         .open = adu_open,
         .release = adu_release,
+        .llseek = noop_llseek,
 };
 
 /*
diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
index a54c3cb804ce..c6184b4d1695 100644
--- a/drivers/usb/misc/idmouse.c
+++ b/drivers/usb/misc/idmouse.c
@@ -105,6 +105,7 @@ static const struct file_operations idmouse_fops = {
         .read = idmouse_read,
         .open = idmouse_open,
         .release = idmouse_release,
+        .llseek = default_llseek,
 };
 
 /* class driver information */
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index bc88c79875a1..9b50db257019 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -730,6 +730,7 @@ static const struct file_operations iowarrior_fops = {
         .open = iowarrior_open,
         .release = iowarrior_release,
         .poll = iowarrior_poll,
+        .llseek = noop_llseek,
 };
 
 static char *iowarrior_devnode(struct device *dev, mode_t *mode)
diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c
index dd41d8710043..edffef642337 100644
--- a/drivers/usb/misc/ldusb.c
+++ b/drivers/usb/misc/ldusb.c
@@ -613,6 +613,7 @@ static const struct file_operations ld_usb_fops = {
         .open =         ld_usb_open,
         .release =      ld_usb_release,
         .poll =         ld_usb_poll,
+        .llseek =       no_llseek,
 };
 
 /*
diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c
index cc13ae61712a..4e23d3841b43 100644
--- a/drivers/usb/misc/rio500.c
+++ b/drivers/usb/misc/rio500.c
@@ -439,6 +439,7 @@ static const struct file_operations usb_rio_fops = {
         .unlocked_ioctl = ioctl_rio,
         .open =         open_rio,
         .release =      close_rio,
+        .llseek =       noop_llseek,
 };
 
 static struct usb_class_driver usb_rio_class = {
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index d00dde19194c..51648154bb44 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -282,6 +282,7 @@ static const struct file_operations lcd_fops = {
         .open =         lcd_open,
         .unlocked_ioctl = lcd_ioctl,
         .release =      lcd_release,
+        .llseek =        noop_llseek,
 };
 
 /*
diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c
index 552679b8dbd1..e24ce3123071 100644
--- a/drivers/usb/usb-skeleton.c
+++ b/drivers/usb/usb-skeleton.c
@@ -507,6 +507,7 @@ static const struct file_operations skel_fops = {
         .open =         skel_open,
         .release =      skel_release,
         .flush =        skel_flush,
+        .llseek =       noop_llseek,
 };
 
 /*
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
index 29e850a7a2f9..c8523ce2e4c6 100644
--- a/drivers/vhost/net.c
+++ b/drivers/vhost/net.c
@@ -869,6 +869,7 @@ static const struct file_operations vhost_net_fops = {
         .compat_ioctl   = vhost_net_compat_ioctl,
 #endif
         .open           = vhost_net_open,
+        .llseek         = noop_llseek,
 };
 
 static struct miscdevice vhost_net_misc = {
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index b06647517c0e..42e303ff862a 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1439,6 +1439,7 @@ static const struct file_operations fb_fops = {
 #ifdef CONFIG_FB_DEFERRED_IO
         .fsync =        fb_deferred_io_fsync,
 #endif
+        .llseek =       default_llseek,
 };
 
 struct class *fb_class;
diff --git a/drivers/video/mbx/mbxdebugfs.c b/drivers/video/mbx/mbxdebugfs.c
index ecad96524570..12dec7634c55 100644
--- a/drivers/video/mbx/mbxdebugfs.c
+++ b/drivers/video/mbx/mbxdebugfs.c
@@ -175,36 +175,42 @@ static const struct file_operations sysconf_fops = {
         .read = sysconf_read_file,
         .write = write_file_dummy,
         .open = open_file_generic,
+        .llseek = default_llseek,
 };
 
 static const struct file_operations clock_fops = {
         .read = clock_read_file,
         .write = write_file_dummy,
         .open = open_file_generic,
+        .llseek = default_llseek,
 };
 
 static const struct file_operations display_fops = {
         .read = display_read_file,
         .write = write_file_dummy,
         .open = open_file_generic,
+        .llseek = default_llseek,
 };
 
 static const struct file_operations gsctl_fops = {
         .read = gsctl_read_file,
         .write = write_file_dummy,
         .open = open_file_generic,
+        .llseek = default_llseek,
 };
 
 static const struct file_operations sdram_fops = {
         .read = sdram_read_file,
         .write = write_file_dummy,
         .open = open_file_generic,
+        .llseek = default_llseek,
 };
 
 static const struct file_operations misc_fops = {
         .read = misc_read_file,
         .write = write_file_dummy,
         .open = open_file_generic,
+        .llseek = default_llseek,
 };
 
 static void __devinit mbxfb_debugfs_init(struct fb_info *fbi)
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index c764c52412e4..b29221783598 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -267,6 +267,7 @@ static const struct file_operations ar7_wdt_fops = {
         .unlocked_ioctl = ar7_wdt_ioctl,
         .open           = ar7_wdt_open,
         .release        = ar7_wdt_release,
+        .llseek         = no_llseek,
 };
 
 static struct miscdevice ar7_wdt_miscdev = {
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index 566343b3c131..51ae4e84f4f9 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -524,6 +524,7 @@ static const struct file_operations cpwd_fops = {
         .write =                cpwd_write,
         .read =                 cpwd_read,
         .release =              cpwd_release,
+        .llseek =               no_llseek,
 };
 
 static int __devinit cpwd_probe(struct platform_device *op,
diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c
index 59359c9a5e01..726b7df61fd0 100644
--- a/drivers/watchdog/ep93xx_wdt.c
+++ b/drivers/watchdog/ep93xx_wdt.c
@@ -188,6 +188,7 @@ static const struct file_operations ep93xx_wdt_fops = {
         .unlocked_ioctl = ep93xx_wdt_ioctl,
         .open           = ep93xx_wdt_open,
         .release        = ep93xx_wdt_release,
+        .llseek         = no_llseek,
 };
 
 static struct miscdevice ep93xx_wdt_miscdev = {
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 76b58abf4451..81e3d6100894 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -258,6 +258,7 @@ static const struct file_operations omap_wdt_fops = {
         .unlocked_ioctl = omap_wdt_ioctl,
         .open = omap_wdt_open,
         .release = omap_wdt_release,
+        .llseek = no_llseek,
 };
 
 static int __devinit omap_wdt_probe(struct platform_device *pdev)
diff --git a/drivers/xen/evtchn.c b/drivers/xen/evtchn.c
index 66e185cfe92f..fec6ba3c08a8 100644
--- a/drivers/xen/evtchn.c
+++ b/drivers/xen/evtchn.c
@@ -467,6 +467,7 @@ static const struct file_operations evtchn_fops = {
         .fasync  = evtchn_fasync,
         .open    = evtchn_open,
         .release = evtchn_release,
+        .llseek = noop_llseek,
 };
 
 static struct miscdevice evtchn_miscdev = {
diff --git a/drivers/xen/xenfs/super.c b/drivers/xen/xenfs/super.c
index 78bfab0700ba..bd96340063c1 100644
--- a/drivers/xen/xenfs/super.c
+++ b/drivers/xen/xenfs/super.c
@@ -35,6 +35,7 @@ static ssize_t capabilities_read(struct file *file, char __user *buf,
 
 static const struct file_operations capabilities_file_ops = {
         .read = capabilities_read,
+        .llseek = default_llseek,
 };
 
 static int xenfs_fill_super(struct super_block *sb, void *data, int silent)
diff --git a/drivers/xen/xenfs/xenbus.c b/drivers/xen/xenfs/xenbus.c
index 3b39c3752e21..1c1236087f78 100644
--- a/drivers/xen/xenfs/xenbus.c
+++ b/drivers/xen/xenfs/xenbus.c
@@ -594,4 +594,5 @@ const struct file_operations xenbus_file_ops = {
         .open = xenbus_file_open,
         .release = xenbus_file_release,
         .poll = xenbus_file_poll,
+        .llseek = no_llseek,
 };