seq_file: constify seq_operations

Make all seq_operations structs const, to help mitigate against
revectoring user-triggerable function pointers.

This is derived from the grsecurity patch, although generated from scratch
because it's simpler than extracting the changes from there.

Signed-off-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: Casey Schaufler <casey@schaufler-ca.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

5 files changed, 12 insertions, 12 deletions

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 4f19105f755c..24c3e21ab263 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -363,7 +363,7 @@ static void cciss_seq_stop(struct seq_file *seq, void *v)
         h->busy_configuring = 0;
 }
 
-static struct seq_operations cciss_seq_ops = {
+static const struct seq_operations cciss_seq_ops = {
         .start = cciss_seq_start,
         .show  = cciss_seq_show,
         .next  = cciss_seq_next,
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 1ee27cc23426..07fa612a58d5 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -91,7 +91,7 @@ static int misc_seq_show(struct seq_file *seq, void *v)
 }
 
 
-static struct seq_operations misc_seq_ops = {
+static const struct seq_operations misc_seq_ops = {
         .start = misc_seq_start,
         .next  = misc_seq_next,
         .stop  = misc_seq_stop,
diff --git a/drivers/char/tpm/tpm_bios.c b/drivers/char/tpm/tpm_bios.c
index 0c2f55a38b95..bf2170fb1cdd 100644
--- a/drivers/char/tpm/tpm_bios.c
+++ b/drivers/char/tpm/tpm_bios.c
@@ -343,14 +343,14 @@ static int tpm_ascii_bios_measurements_show(struct seq_file *m, void *v)
         return 0;
 }
 
-static struct seq_operations tpm_ascii_b_measurments_seqops = {
+static const struct seq_operations tpm_ascii_b_measurments_seqops = {
         .start = tpm_bios_measurements_start,
         .next = tpm_bios_measurements_next,
         .stop = tpm_bios_measurements_stop,
         .show = tpm_ascii_bios_measurements_show,
 };
 
-static struct seq_operations tpm_binary_b_measurments_seqops = {
+static const struct seq_operations tpm_binary_b_measurments_seqops = {
         .start = tpm_bios_measurements_start,
         .next = tpm_bios_measurements_next,
         .stop = tpm_bios_measurements_stop,
diff --git a/drivers/isdn/capi/kcapi_proc.c b/drivers/isdn/capi/kcapi_proc.c
index 50ed778f63fc..09d4db764d22 100644
--- a/drivers/isdn/capi/kcapi_proc.c
+++ b/drivers/isdn/capi/kcapi_proc.c
@@ -89,14 +89,14 @@ static int contrstats_show(struct seq_file *seq, void *v)
         return 0;
 }
 
-static struct seq_operations seq_controller_ops = {
+static const struct seq_operations seq_controller_ops = {
         .start  = controller_start,
         .next   = controller_next,
         .stop   = controller_stop,
         .show   = controller_show,
 };
 
-static struct seq_operations seq_contrstats_ops = {
+static const struct seq_operations seq_contrstats_ops = {
         .start  = controller_start,
         .next   = controller_next,
         .stop   = controller_stop,
@@ -194,14 +194,14 @@ applstats_show(struct seq_file *seq, void *v)
         return 0;
 }
 
-static struct seq_operations seq_applications_ops = {
+static const struct seq_operations seq_applications_ops = {
         .start  = applications_start,
         .next   = applications_next,
         .stop   = applications_stop,
         .show   = applications_show,
 };
 
-static struct seq_operations seq_applstats_ops = {
+static const struct seq_operations seq_applstats_ops = {
         .start  = applications_start,
         .next   = applications_next,
         .stop   = applications_stop,
@@ -264,7 +264,7 @@ static int capi_driver_show(struct seq_file *seq, void *v)
         return 0;
 }
 
-static struct seq_operations seq_capi_driver_ops = {
+static const struct seq_operations seq_capi_driver_ops = {
         .start  = capi_driver_start,
         .next   = capi_driver_next,
         .stop   = capi_driver_stop,
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 4968c4ced385..848b59466850 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -2233,7 +2233,7 @@ static struct file_operations dev_fops = {
         .open = sg_proc_open_dev,
         .release = seq_release,
 };
-static struct seq_operations dev_seq_ops = {
+static const struct seq_operations dev_seq_ops = {
         .start = dev_seq_start,
         .next  = dev_seq_next,
         .stop  = dev_seq_stop,
@@ -2246,7 +2246,7 @@ static struct file_operations devstrs_fops = {
         .open = sg_proc_open_devstrs,
         .release = seq_release,
 };
-static struct seq_operations devstrs_seq_ops = {
+static const struct seq_operations devstrs_seq_ops = {
         .start = dev_seq_start,
         .next  = dev_seq_next,
         .stop  = dev_seq_stop,
@@ -2259,7 +2259,7 @@ static struct file_operations debug_fops = {
         .open = sg_proc_open_debug,
         .release = seq_release,
 };
-static struct seq_operations debug_seq_ops = {
+static const struct seq_operations debug_seq_ops = {
         .start = dev_seq_start,
         .next  = dev_seq_next,
         .stop  = dev_seq_stop,