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audit: rename struct node to struct audit_node to prevent future name collisions 

Future work in the powerpc code results in a name collision with the
identified "node" as struct node defined in kernel/audit_tree.c
conflicts with struct node defined in include/linux/node.h (below).
This patch takes the proactive route and renames the audit code's
struct node to audit_node.

	  CC      kernel/audit_tree.o
	kernel/audit_tree.c:33:9: error: redefinition of 'struct node'
	   33 |  struct node {
	      |         ^~~~
	In file included from ./include/linux/cpu.h:17,
                	 from ./include/linux/static_call.h:102,
                	 from ./arch/powerpc/include/asm/machdep.h:10,
                	 from ./arch/powerpc/include/asm/archrandom.h:7,
                	 from ./include/linux/random.h:121,
                	 from ./include/linux/net.h:18,
                	 from ./include/linux/skbuff.h:26,
                	 from kernel/audit.h:11,
                	 from kernel/audit_tree.c:2:
	./include/linux/node.h:84:8: note: originally defined here
	   84 | struct node {
	      |        ^~~~
	make[2]: *** [kernel/audit_tree.o] Error 1

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
[PM: rewrite subj/desc as the build failure is just a RFC patch]
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Christophe Leroy 2021-09-03 15:48:22 +00:00 committed by Paul Moore
parent 6880fa6c56
commit 57d4374be9
1 changed files with 10 additions and 10 deletions
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20
kernel/audit_tree.c
View File

@ -30,7 +30,7 @@ struct audit_chunk {
int count;
atomic_long_t refs;
struct rcu_head head;
struct node {
struct audit_node {
struct list_head list;
struct audit_tree *owner;
unsigned index; /* index; upper bit indicates 'will prune' */
@ -269,7 +269,7 @@ bool audit_tree_match(struct audit_chunk *chunk, struct audit_tree *tree)
/* tagging and untagging inodes with trees */
static struct audit_chunk *find_chunk(struct node *p)
static struct audit_chunk *find_chunk(struct audit_node *p)
{
int index = p->index & ~(1U<<31);
p -= index;
@ -322,7 +322,7 @@ static void replace_chunk(struct audit_chunk *new, struct audit_chunk *old)
list_replace_rcu(&old->hash, &new->hash);
}
static void remove_chunk_node(struct audit_chunk *chunk, struct node *p)
static void remove_chunk_node(struct audit_chunk *chunk, struct audit_node *p)
{
struct audit_tree *owner = p->owner;
@ -459,7 +459,7 @@ static int tag_chunk(struct inode *inode, struct audit_tree *tree)
{
struct fsnotify_mark *mark;
struct audit_chunk *chunk, *old;
struct node *p;
struct audit_node *p;
int n;
mutex_lock(&audit_tree_group->mark_mutex);
@ -570,11 +570,11 @@ static void prune_tree_chunks(struct audit_tree *victim, bool tagged)
{
spin_lock(&hash_lock);
while (!list_empty(&victim->chunks)) {
struct node *p;
struct audit_node *p;
struct audit_chunk *chunk;
struct fsnotify_mark *mark;
p = list_first_entry(&victim->chunks, struct node, list);
p = list_first_entry(&victim->chunks, struct audit_node, list);
/* have we run out of marked? */
if (tagged && !(p->index & (1U<<31)))
break;
@ -616,7 +616,7 @@ static void trim_marked(struct audit_tree *tree)
}
/* reorder */
for (p = tree->chunks.next; p != &tree->chunks; p = q) {
struct node *node = list_entry(p, struct node, list);
struct audit_node *node = list_entry(p, struct audit_node, list);
q = p->next;
if (node->index & (1U<<31)) {
list_del_init(p);
@ -684,7 +684,7 @@ void audit_trim_trees(void)
struct audit_tree *tree;
struct path path;
struct vfsmount *root_mnt;
struct node *node;
struct audit_node *node;
int err;
tree = container_of(cursor.next, struct audit_tree, list);
@ -839,7 +839,7 @@ int audit_add_tree_rule(struct audit_krule *rule)
drop_collected_mounts(mnt);
if (!err) {
struct node *node;
struct audit_node *node;
spin_lock(&hash_lock);
list_for_each_entry(node, &tree->chunks, list)
node->index &= ~(1U<<31);
@ -938,7 +938,7 @@ int audit_tag_tree(char *old, char *new)
mutex_unlock(&audit_filter_mutex);
if (!failed) {
struct node *node;
struct audit_node *node;
spin_lock(&hash_lock);
list_for_each_entry(node, &tree->chunks, list)
node->index &= ~(1U<<31);