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authorKaiGai Kohei <kaigai@ak.jp.nec.com>2006-05-13 15:20:24 +0900
committerKaiGai Kohei <kaigai@ak.jp.nec.com>2006-05-13 15:20:24 +0900
commitdea80134dc4d54df52c0c59b0ba2bb5aa999bf30 (patch)
tree37bfacafa5f5ad58b211c483497218d0ec82443b
parent5a14959c0700cd389d9e7ba312e15c8e85255e1f (diff)
downloadblackbird-op-linux-dea80134dc4d54df52c0c59b0ba2bb5aa999bf30.tar.gz
blackbird-op-linux-dea80134dc4d54df52c0c59b0ba2bb5aa999bf30.zip
[JFFS2][XATTR] remove redundant pointer cast in acl.c
remove redundant pointer cast in acl.c. [10/10] jffs2-xattr-v5.1-10-remove_pointer_cast.patch Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
-rw-r--r--fs/jffs2/acl.c41
1 files changed, 21 insertions, 20 deletions
diff --git a/fs/jffs2/acl.c b/fs/jffs2/acl.c
index 1682278d9742..320dd48b834e 100644
--- a/fs/jffs2/acl.c
+++ b/fs/jffs2/acl.c
@@ -48,9 +48,11 @@ static int jffs2_acl_count(size_t size)
}
}
-static struct posix_acl *jffs2_acl_from_medium(const void *value, size_t size)
+static struct posix_acl *jffs2_acl_from_medium(void *value, size_t size)
{
- const char *end = (char *)value + size;
+ void *end = value + size;
+ struct jffs2_acl_header *header = value;
+ struct jffs2_acl_entry *entry;
struct posix_acl *acl;
uint32_t ver;
int i, count;
@@ -59,13 +61,13 @@ static struct posix_acl *jffs2_acl_from_medium(const void *value, size_t size)
return NULL;
if (size < sizeof(struct jffs2_acl_header))
return ERR_PTR(-EINVAL);
- ver = je32_to_cpu(((struct jffs2_acl_header *)value)->a_version);
+ ver = je32_to_cpu(header->a_version);
if (ver != JFFS2_ACL_VERSION) {
JFFS2_WARNING("Invalid ACL version. (=%u)\n", ver);
return ERR_PTR(-EINVAL);
}
- value = (char *)value + sizeof(struct jffs2_acl_header);
+ value += sizeof(struct jffs2_acl_header);
count = jffs2_acl_count(size);
if (count < 0)
return ERR_PTR(-EINVAL);
@@ -77,8 +79,8 @@ static struct posix_acl *jffs2_acl_from_medium(const void *value, size_t size)
return ERR_PTR(-ENOMEM);
for (i=0; i < count; i++) {
- struct jffs2_acl_entry *entry = (struct jffs2_acl_entry *)value;
- if ((char *)value + sizeof(struct jffs2_acl_entry_short) > end)
+ entry = value;
+ if (value + sizeof(struct jffs2_acl_entry_short) > end)
goto fail;
acl->a_entries[i].e_tag = je16_to_cpu(entry->e_tag);
acl->a_entries[i].e_perm = je16_to_cpu(entry->e_perm);
@@ -87,14 +89,14 @@ static struct posix_acl *jffs2_acl_from_medium(const void *value, size_t size)
case ACL_GROUP_OBJ:
case ACL_MASK:
case ACL_OTHER:
- value = (char *)value + sizeof(struct jffs2_acl_entry_short);
+ value += sizeof(struct jffs2_acl_entry_short);
acl->a_entries[i].e_id = ACL_UNDEFINED_ID;
break;
case ACL_USER:
case ACL_GROUP:
- value = (char *)value + sizeof(struct jffs2_acl_entry);
- if ((char *)value > end)
+ value += sizeof(struct jffs2_acl_entry);
+ if (value > end)
goto fail;
acl->a_entries[i].e_id = je32_to_cpu(entry->e_id);
break;
@@ -113,20 +115,19 @@ static struct posix_acl *jffs2_acl_from_medium(const void *value, size_t size)
static void *jffs2_acl_to_medium(const struct posix_acl *acl, size_t *size)
{
- struct jffs2_acl_header *jffs2_acl;
- char *e;
+ struct jffs2_acl_header *header;
+ struct jffs2_acl_entry *entry;
+ void *e;
size_t i;
*size = jffs2_acl_size(acl->a_count);
- jffs2_acl = kmalloc(sizeof(struct jffs2_acl_header)
- + acl->a_count * sizeof(struct jffs2_acl_entry),
- GFP_KERNEL);
- if (!jffs2_acl)
+ header = kmalloc(sizeof(*header) + acl->a_count * sizeof(*entry), GFP_KERNEL);
+ if (!header)
return ERR_PTR(-ENOMEM);
- jffs2_acl->a_version = cpu_to_je32(JFFS2_ACL_VERSION);
- e = (char *)jffs2_acl + sizeof(struct jffs2_acl_header);
+ header->a_version = cpu_to_je32(JFFS2_ACL_VERSION);
+ e = header + 1;
for (i=0; i < acl->a_count; i++) {
- struct jffs2_acl_entry *entry = (struct jffs2_acl_entry *)e;
+ entry = e;
entry->e_tag = cpu_to_je16(acl->a_entries[i].e_tag);
entry->e_perm = cpu_to_je16(acl->a_entries[i].e_perm);
switch(acl->a_entries[i].e_tag) {
@@ -147,9 +148,9 @@ static void *jffs2_acl_to_medium(const struct posix_acl *acl, size_t *size)
goto fail;
}
}
- return (char *)jffs2_acl;
+ return header;
fail:
- kfree(jffs2_acl);
+ kfree(header);
return ERR_PTR(-EINVAL);
}
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