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Date: Tue, 01 Apr 2008 12:24:30 -0700
From: Harvey Harrison <harvey.harrison@...il.com>
To: Al Viro <viro@...IV.linux.org.uk>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: [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: Harvey Harrison <harvey.harrison@...il.com>
---
kernel/audit.c | 10 +++++-----
kernel/auditfilter.c | 18 +++++++++---------
kernel/auditsc.c | 2 --
3 files changed, 14 insertions(+), 16 deletions(-)
diff --git a/kernel/audit.c b/kernel/audit.c
index b782b04..a4c36ed 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -721,21 +721,21 @@ 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);
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index 0c63577..587c893 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -417,7 +417,7 @@ exit_err:
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;
@@ -539,7 +539,7 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
bufp = data->buf;
entry->rule.vers_ops = 2;
for (i = 0; i < data->field_count; i++) {
- struct audit_field *f = &entry->rule.fields[i];
+ audit_field *f = &entry->rule.fields[i];
err = -EINVAL;
if (!(data->fieldflags[i] & AUDIT_OPERATORS) ||
@@ -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:
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 12e7183..16c3abd 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1292,7 +1292,6 @@ 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++)
@@ -1317,7 +1316,6 @@ 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],
--
1.5.5.rc1.135.g8527
--
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