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seq_file: constify seq_operations

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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>
This commit is contained in:
James Morris
2009-09-22 16:43:43 -07:00
committed by Linus Torvalds
parent b7ed698cc9
commit 88e9d34c72
26 changed files with 49 additions and 49 deletions
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4
kernel/trace/ftrace.c
View File

@@ -1520,7 +1520,7 @@ static int t_show(struct seq_file *m, void *v)
return 0;
}
static struct seq_operations show_ftrace_seq_ops = {
static const struct seq_operations show_ftrace_seq_ops = {
.start = t_start,
.next = t_next,
.stop = t_stop,
@@ -2459,7 +2459,7 @@ static int g_show(struct seq_file *m, void *v)
return 0;
}
static struct seq_operations ftrace_graph_seq_ops = {
static const struct seq_operations ftrace_graph_seq_ops = {
.start = g_start,
.next = g_next,
.stop = g_stop,

4
kernel/trace/trace.c
View File

@@ -1949,7 +1949,7 @@ static int s_show(struct seq_file *m, void *v)
return 0;
}
static struct seq_operations tracer_seq_ops = {
static const struct seq_operations tracer_seq_ops = {
.start = s_start,
.next = s_next,
.stop = s_stop,
@@ -2163,7 +2163,7 @@ static int t_show(struct seq_file *m, void *v)
return 0;
}
static struct seq_operations show_traces_seq_ops = {
static const struct seq_operations show_traces_seq_ops = {
.start = t_start,
.next = t_next,
.stop = t_stop,