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Date: Fri, 08 Aug 2014 21:26:24 -0700
From: "Darrick J. Wong" <darrick.wong@...cle.com>
To: tytso@....edu, darrick.wong@...cle.com
Cc: linux-ext4@...r.kernel.org
Subject: [PATCH 2/6] misc: fix gcc warnings
Signed-off-by: Darrick J. Wong <darrick.wong@...cle.com>
---
debugfs/debugfs.c | 11 +++--------
debugfs/xattrs.c | 3 ---
debugfs/zap.c | 1 -
e2fsck/pass1.c | 1 -
e2fsck/pass2.c | 1 -
e2fsck/pass3.c | 2 +-
e2fsck/pass5.c | 4 ----
lib/ext2fs/ext_attr.c | 13 ++-----------
lib/ext2fs/newdir.c | 2 --
misc/create_inode.c | 5 +----
misc/e2fuzz.c | 3 ++-
misc/tune2fs.c | 4 +---
12 files changed, 10 insertions(+), 40 deletions(-)
diff --git a/debugfs/debugfs.c b/debugfs/debugfs.c
index 6366465..0d8e9e8 100644
--- a/debugfs/debugfs.c
+++ b/debugfs/debugfs.c
@@ -498,11 +498,6 @@ static void internal_dump_inode_extra(FILE *out,
ext2_ino_t inode_num EXT2FS_ATTR((unused)),
struct ext2_inode_large *inode)
{
- struct ext2_ext_attr_entry *entry;
- __u32 *magic;
- char *start, *end;
- unsigned int storage_size;
-
fprintf(out, "Size of extra inode fields: %u\n", inode->i_extra_isize);
if (inode->i_extra_isize > EXT2_INODE_SIZE(current_fs->super) -
EXT2_GOOD_OLD_INODE_SIZE) {
@@ -1595,9 +1590,9 @@ void do_write(int argc, char *argv[])
void do_mknod(int argc, char *argv[])
{
- unsigned long mode, major, minor;
+ unsigned long major, minor;
errcode_t retval;
- int filetype, nr;
+ int nr;
struct stat st;
if (check_fs_open(argv[0]))
@@ -1608,7 +1603,7 @@ void do_mknod(int argc, char *argv[])
return;
}
- mode = minor = major = 0;
+ minor = major = 0;
switch (argv[2][0]) {
case 'p':
st.st_mode = S_IFIFO;
diff --git a/debugfs/xattrs.c b/debugfs/xattrs.c
index 1c19b2f..a80fd0b 100644
--- a/debugfs/xattrs.c
+++ b/debugfs/xattrs.c
@@ -288,9 +288,6 @@ void do_rm_xattr(int argc, char **argv)
goto out;
for (i = 2; i < argc; i++) {
- size_t buflen;
- char *buf;
-
err = ext2fs_xattr_remove(h, argv[i]);
if (err)
goto out;
diff --git a/debugfs/zap.c b/debugfs/zap.c
index 917bddf..0a1ae9b 100644
--- a/debugfs/zap.c
+++ b/debugfs/zap.c
@@ -174,7 +174,6 @@ void do_block_dump(int argc, char *argv[])
errcode_t errcode;
blk64_t block;
char *file = NULL;
- unsigned int i, j;
int c, err;
if (check_fs_open(argv[0]))
diff --git a/e2fsck/pass1.c b/e2fsck/pass1.c
index a473bd7..4fc5311 100644
--- a/e2fsck/pass1.c
+++ b/e2fsck/pass1.c
@@ -2383,7 +2383,6 @@ static void scan_extent_node(e2fsck_t ctx, struct problem_context *pctx,
if (try_repairs && problem) {
report_problem:
if (fix_problem(ctx, problem, pctx)) {
-fix_problem_now:
if (ctx->invalid_bitmaps) {
/*
* If fsck knows the bitmaps are bad,
diff --git a/e2fsck/pass2.c b/e2fsck/pass2.c
index fb98af5..23310f1 100644
--- a/e2fsck/pass2.c
+++ b/e2fsck/pass2.c
@@ -746,7 +746,6 @@ static errcode_t insert_dirent_tail(ext2_filsys fs, void *dirbuf)
struct ext2_dir_entry *d;
void *top;
struct ext2_dir_entry_tail *t;
- unsigned int rec_len;
d = dirbuf;
top = EXT2_DIRENT_TAIL(dirbuf, fs->blocksize);
diff --git a/e2fsck/pass3.c b/e2fsck/pass3.c
index 63b1d70..9860cdf 100644
--- a/e2fsck/pass3.c
+++ b/e2fsck/pass3.c
@@ -831,7 +831,7 @@ errcode_t e2fsck_expand_directory(e2fsck_t ctx, ext2_ino_t dir,
errcode_t retval;
struct expand_dir_struct es;
struct ext2_inode inode;
- blk64_t sz, before, after;
+ blk64_t sz;
if (!(fs->flags & EXT2_FLAG_RW))
return EXT2_ET_RO_FILSYS;
diff --git a/e2fsck/pass5.c b/e2fsck/pass5.c
index bf3f733..86ac9fd 100644
--- a/e2fsck/pass5.c
+++ b/e2fsck/pass5.c
@@ -327,11 +327,7 @@ static void check_block_bitmaps(e2fsck_t ctx)
problem_t problem, save_problem;
int fixit, had_problem;
errcode_t retval;
- int old_desc_blocks = 0;
- int count = 0;
- int cmp_block = 0;
int redo_flag = 0;
- blk64_t super_blk, old_desc_blk, new_desc_blk;
char *actual_buf, *bitmap_buf;
actual_buf = (char *) e2fsck_allocate_memory(ctx, fs->blocksize,
diff --git a/lib/ext2fs/ext_attr.c b/lib/ext2fs/ext_attr.c
index fc191f5..f9b9208 100644
--- a/lib/ext2fs/ext_attr.c
+++ b/lib/ext2fs/ext_attr.c
@@ -302,8 +302,7 @@ errcode_t ext2fs_free_ext_attr(ext2_filsys fs, ext2_ino_t ino,
{
struct ext2_ext_attr_header *header;
void *block_buf = NULL;
- dgrp_t grp;
- blk64_t blk, goal;
+ blk64_t blk;
errcode_t err;
struct ext2_inode_large i;
@@ -621,7 +620,6 @@ static errcode_t read_xattrs_from_buffer(struct ext2_xattr_handle *handle,
struct ext2_xattr *x;
struct ext2_ext_attr_entry *entry;
const char *prefix;
- void *ptr;
unsigned int remain, prefix_len;
errcode_t err;
unsigned int values_size = storage_size +
@@ -719,7 +717,6 @@ static void xattrs_free_keys(struct ext2_xattr_handle *h)
errcode_t ext2fs_xattrs_read(struct ext2_xattr_handle *handle)
{
- struct ext2_xattr *attrs = NULL, *x;
struct ext2_inode_large *inode;
struct ext2_ext_attr_header *header;
__u32 ea_inode_magic;
@@ -822,7 +819,6 @@ errcode_t ext2fs_xattrs_iterate(struct ext2_xattr_handle *h,
void *data)
{
struct ext2_xattr *x;
- errcode_t err;
int ret;
EXT2_CHECK_MAGIC(h, EXT2_ET_MAGIC_EA_HANDLE);
@@ -869,11 +865,10 @@ errcode_t ext2fs_xattr_get(struct ext2_xattr_handle *h, const char *key,
errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
size_t *size)
{
- struct ext2_ext_attr_header *header;
struct ext2_ext_attr_entry *entry;
struct ext2_inode_large *inode;
__u32 ea_inode_magic;
- unsigned int storage_size, freesize, minoff;
+ unsigned int minoff;
void *start;
int i;
errcode_t err;
@@ -903,9 +898,6 @@ errcode_t ext2fs_xattr_inode_max_size(ext2_filsys fs, ext2_ino_t ino,
inode->i_extra_isize, sizeof(__u32));
if (ea_inode_magic == EXT2_EXT_ATTR_MAGIC) {
/* has xattrs. calculate the size */
- storage_size = EXT2_INODE_SIZE(fs->super) -
- EXT2_GOOD_OLD_INODE_SIZE - inode->i_extra_isize -
- sizeof(__u32);
start= ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
inode->i_extra_isize + sizeof(__u32);
entry = start;
@@ -1003,7 +995,6 @@ errcode_t ext2fs_xattr_remove(struct ext2_xattr_handle *handle,
const char *key)
{
struct ext2_xattr *x;
- errcode_t err;
EXT2_CHECK_MAGIC(handle, EXT2_ET_MAGIC_EA_HANDLE);
for (x = handle->attrs; x < handle->attrs + handle->length; x++) {
diff --git a/lib/ext2fs/newdir.c b/lib/ext2fs/newdir.c
index 506d609..f9bf8fc 100644
--- a/lib/ext2fs/newdir.c
+++ b/lib/ext2fs/newdir.c
@@ -102,9 +102,7 @@ errcode_t ext2fs_new_dir_inline_data(ext2_filsys fs, ext2_ino_t dir_ino,
{
struct ext2_dir_entry *dir = NULL;
errcode_t retval;
- char *buf;
int rec_len;
- int filetype = 0;
EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
diff --git a/misc/create_inode.c b/misc/create_inode.c
index 4d56719..7f57979 100644
--- a/misc/create_inode.c
+++ b/misc/create_inode.c
@@ -288,8 +288,6 @@ errcode_t do_symlink_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name,
char *cp;
ext2_ino_t parent_ino;
errcode_t retval;
- struct ext2_inode inode;
- struct stat st;
cp = strrchr(name, '/');
if (cp) {
@@ -324,9 +322,8 @@ errcode_t do_mkdir_internal(ext2_filsys fs, ext2_ino_t cwd, const char *name,
struct stat *st, ext2_ino_t root)
{
char *cp;
- ext2_ino_t parent_ino, ino;
+ ext2_ino_t parent_ino;
errcode_t retval;
- struct ext2_inode inode;
cp = strrchr(name, '/');
diff --git a/misc/e2fuzz.c b/misc/e2fuzz.c
index 91aafe5..741dd67 100644
--- a/misc/e2fuzz.c
+++ b/misc/e2fuzz.c
@@ -52,7 +52,8 @@ int getseed(void)
perror("open");
exit(0);
}
- read(fd, &r, sizeof(r));
+ if (read(fd, &r, sizeof(r)) != sizeof(r))
+ printf("Unable to read random seed!\n");
close(fd);
return r;
}
diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index 75a2735..ee47c04 100644
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -186,7 +186,6 @@ static __u32 clear_ok_features[3] = {
static int get_journal_sb(ext2_filsys jfs, char buf[SUPERBLOCK_SIZE])
{
int retval;
- int start;
journal_superblock_t *jsb;
if (!(jfs->super->s_feature_incompat &
@@ -805,7 +804,7 @@ static void enable_uninit_bg(ext2_filsys fs)
static errcode_t zero_empty_inodes(ext2_filsys fs)
{
int length = EXT2_INODE_SIZE(fs->super);
- struct ext2_inode *inode;
+ struct ext2_inode *inode = NULL;
ext2_inode_scan scan;
errcode_t retval;
ext2_ino_t ino;
@@ -845,7 +844,6 @@ static void disable_uninit_bg(ext2_filsys fs, __u32 csum_feature_flag)
dgrp_t i;
errcode_t retval;
blk64_t b, c, d;
- int has_super;
/* Load bitmaps to ensure that the uninit ones get written out */
fs->super->s_feature_ro_compat |= csum_feature_flag;
--
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