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Commit 7719e437 authored by Harvey Harrison's avatar Harvey Harrison Committed by Al Viro
Browse files

[PATCH 2/2] audit: fix sparse shadowed variable warnings 



Use msglen as the identifier.
kernel/audit.c:724:10: warning: symbol 'len' shadows an earlier one
kernel/audit.c:575:8: originally declared here

Don't use ino_f to check the inode field at the end of the functions.
kernel/auditfilter.c:429:22: warning: symbol 'f' shadows an earlier one
kernel/auditfilter.c:420:21: originally declared here
kernel/auditfilter.c:542:22: warning: symbol 'f' shadows an earlier one
kernel/auditfilter.c:529:21: originally declared here

i always used as a counter for a for loop and initialized to zero before
use.  Eliminate the inner i variables.
kernel/auditsc.c:1295:8: warning: symbol 'i' shadows an earlier one
kernel/auditsc.c:1152:6: originally declared here
kernel/auditsc.c:1320:7: warning: symbol 'i' shadows an earlier one
kernel/auditsc.c:1152:6: originally declared here

Signed-off-by: default avatarHarvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent c782f242

kernel/audit.c

+5 −5
Original line number Diff line number Diff line
@@ -813,21 +813,21 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh) 
	case AUDIT_MAKE_EQUIV: {

		void *bufp = data;

		u32 sizes[2];

		size_t len = nlmsg_len(nlh);

		size_t msglen = nlmsg_len(nlh);

		char *old, *new;



		err = -EINVAL;

		if (len < 2 * sizeof(u32))

		if (msglen < 2 * sizeof(u32))

			break;

		memcpy(sizes, bufp, 2 * sizeof(u32));

		bufp += 2 * sizeof(u32);

		len -= 2 * sizeof(u32);

		old = audit_unpack_string(&bufp, &len, sizes[0]);

		msglen -= 2 * sizeof(u32);

		old = audit_unpack_string(&bufp, &msglen, sizes[0]);

		if (IS_ERR(old)) {

			err = PTR_ERR(old);

			break;

		}

		new = audit_unpack_string(&bufp, &len, sizes[1]);

		new = audit_unpack_string(&bufp, &msglen, sizes[1]);

		if (IS_ERR(new)) {

			err = PTR_ERR(new);

			kfree(old);

kernel/auditfilter.c

+8 −8
Original line number Diff line number Diff line
@@ -417,7 +417,7 @@ static inline struct audit_entry *audit_to_entry_common(struct audit_rule *rule) 
static struct audit_entry *audit_rule_to_entry(struct audit_rule *rule)

{

	struct audit_entry *entry;

	struct audit_field *f;

	struct audit_field *ino_f;

	int err = 0;

	int i;
@@ -499,9 +499,9 @@ static struct audit_entry *audit_rule_to_entry(struct audit_rule *rule) 
		}

	}



	f = entry->rule.inode_f;

	if (f) {

		switch(f->op) {

	ino_f = entry->rule.inode_f;

	if (ino_f) {

		switch(ino_f->op) {

		case AUDIT_NOT_EQUAL:

			entry->rule.inode_f = NULL;

		case AUDIT_EQUAL:
@@ -526,7 +526,7 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data, 
{

	int err = 0;

	struct audit_entry *entry;

	struct audit_field *f;

	struct audit_field *ino_f;

	void *bufp;

	size_t remain = datasz - sizeof(struct audit_rule_data);

	int i;
@@ -654,9 +654,9 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data, 
		}

	}



	f = entry->rule.inode_f;

	if (f) {

		switch(f->op) {

	ino_f = entry->rule.inode_f;

	if (ino_f) {

		switch(ino_f->op) {

		case AUDIT_NOT_EQUAL:

			entry->rule.inode_f = NULL;

		case AUDIT_EQUAL:

kernel/auditsc.c

+0 −2
Original line number Diff line number Diff line
@@ -1293,7 +1293,6 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts 
			break; }



		case AUDIT_SOCKETCALL: {

			int i;

			struct audit_aux_data_socketcall *axs = (void *)aux;

			audit_log_format(ab, "nargs=%d", axs->nargs);

			for (i=0; i<axs->nargs; i++)
@@ -1318,7 +1317,6 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts 


	for (aux = context->aux_pids; aux; aux = aux->next) {

		struct audit_aux_data_pids *axs = (void *)aux;

		int i;



		for (i = 0; i < axs->pid_count; i++)

			if (audit_log_pid_context(context, axs->target_pid[i],