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Message-Id: <1369058339-1925-3-git-send-email-tytso@mit.edu>
Date: Mon, 20 May 2013 09:58:59 -0400
From: Theodore Ts'o <tytso@....edu>
To: Ext4 Developers List <linux-ext4@...r.kernel.org>
Cc: Theodore Ts'o <tytso@....edu>
Subject: [PATCH 3/3] e2fsck: fix gcc -Wall nits
Perhaps the most serious fix up is a type-punning warning which could
result in miscompilation with overly enthusiastic compilers.
Signed-off-by: "Theodore Ts'o" <tytso@....edu>
---
e2fsck/journal.c | 2 +-
e2fsck/message.c | 3 +--
e2fsck/pass1.c | 15 ++++++++-------
e2fsck/pass1b.c | 35 ++++++++++++++++++-----------------
e2fsck/pass2.c | 2 +-
e2fsck/recovery.c | 16 ++++++++++------
e2fsck/rehash.c | 9 ++++-----
e2fsck/sigcatcher.c | 3 ++-
e2fsck/super.c | 2 +-
9 files changed, 46 insertions(+), 41 deletions(-)
diff --git a/e2fsck/journal.c b/e2fsck/journal.c
index 69771da..6908aec 100644
--- a/e2fsck/journal.c
+++ b/e2fsck/journal.c
@@ -314,7 +314,7 @@ static errcode_t e2fsck_get_journal(e2fsck_t ctx, journal_t **ret_journal)
BLOCK_FLAG_HOLE, 0,
process_journal_block, &pb);
if ((pb.last_block + 1) * ctx->fs->blocksize <
- EXT2_I_SIZE(&j_inode->i_ext2)) {
+ (int) EXT2_I_SIZE(&j_inode->i_ext2)) {
retval = EXT2_ET_JOURNAL_TOO_SMALL;
goto try_backup_journal;
}
diff --git a/e2fsck/message.c b/e2fsck/message.c
index b79b895..b99473d 100644
--- a/e2fsck/message.c
+++ b/e2fsck/message.c
@@ -361,8 +361,7 @@ static _INLINE_ void expand_dirent_expression(FILE *f, ext2_filsys fs, char ch,
struct problem_context *ctx)
{
struct ext2_dir_entry *dirent;
- unsigned int rec_len;
- int len;
+ unsigned int rec_len, len;
if (!ctx || !ctx->dirent)
goto no_dirent;
diff --git a/e2fsck/pass1.c b/e2fsck/pass1.c
index 4095703..de00638 100644
--- a/e2fsck/pass1.c
+++ b/e2fsck/pass1.c
@@ -1837,12 +1837,12 @@ report_problem:
}
/* The next extent should match this index's logical start */
if (extent.e_lblk != lblk) {
- struct ext2_extent_info info;
+ struct ext2_extent_info e_info;
- ext2fs_extent_get_info(ehandle, &info);
+ ext2fs_extent_get_info(ehandle, &e_info);
pctx->blk = lblk;
pctx->blk2 = extent.e_lblk;
- pctx->num = info.curr_level - 1;
+ pctx->num = e_info.curr_level - 1;
problem = PR_1_EXTENT_INDEX_START_INVALID;
if (fix_problem(ctx, problem, pctx))
ext2fs_extent_fix_parents(ehandle);
@@ -1882,7 +1882,8 @@ report_problem:
}
pb->fragmented = 1;
}
- while (is_dir && ++pb->last_db_block < extent.e_lblk) {
+ while (is_dir && (++pb->last_db_block <
+ (e2_blkcnt_t) extent.e_lblk)) {
pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist,
pb->ino, 0,
pb->last_db_block);
@@ -1904,7 +1905,7 @@ report_problem:
(EXT2FS_B2C(ctx->fs, blk) ==
EXT2FS_B2C(ctx->fs, pb->previous_block)) &&
(blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
- (blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
+ ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
mark_block_used(ctx, blk);
pb->num_blocks++;
}
@@ -2353,7 +2354,7 @@ static int process_block(ext2_filsys fs,
(EXT2FS_B2C(ctx->fs, blk) ==
EXT2FS_B2C(ctx->fs, p->previous_block)) &&
(blk & EXT2FS_CLUSTER_MASK(ctx->fs)) ==
- (blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
+ ((unsigned) blockcnt & EXT2FS_CLUSTER_MASK(ctx->fs)))) {
mark_block_used(ctx, blk);
p->num_blocks++;
}
@@ -2684,7 +2685,7 @@ static void mark_table_blocks(e2fsck_t ctx)
ext2_filsys fs = ctx->fs;
blk64_t b;
dgrp_t i;
- int j;
+ unsigned int j;
struct problem_context pctx;
clear_problem_context(&pctx);
diff --git a/e2fsck/pass1b.c b/e2fsck/pass1b.c
index 93fb630..cd6c883 100644
--- a/e2fsck/pass1b.c
+++ b/e2fsck/pass1b.c
@@ -624,7 +624,6 @@ static void delete_file(e2fsck_t ctx, ext2_ino_t ino,
{
ext2_filsys fs = ctx->fs;
struct process_block_struct pb;
- struct ext2_inode inode;
struct problem_context pctx;
unsigned int count;
@@ -635,33 +634,35 @@ static void delete_file(e2fsck_t ctx, ext2_ino_t ino,
pctx.str = "delete_file";
pb.cur_cluster = ~0;
- e2fsck_read_inode(ctx, ino, &inode, "delete_file");
- if (ext2fs_inode_has_valid_blocks2(fs, &inode))
- pctx.errcode = ext2fs_block_iterate3(fs, ino, BLOCK_FLAG_READ_ONLY,
- block_buf, delete_file_block, &pb);
+ if (ext2fs_inode_has_valid_blocks2(fs, &dp->inode))
+ pctx.errcode = ext2fs_block_iterate3(fs, ino,
+ BLOCK_FLAG_READ_ONLY,
+ block_buf,
+ delete_file_block, &pb);
if (pctx.errcode)
fix_problem(ctx, PR_1B_BLOCK_ITERATE, &pctx);
if (ctx->inode_bad_map)
ext2fs_unmark_inode_bitmap2(ctx->inode_bad_map, ino);
- ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode));
- quota_data_sub(ctx->qctx, &inode, ino, pb.dup_blocks * fs->blocksize);
- quota_data_inodes(ctx->qctx, &inode, ino, -1);
+ ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(dp->inode.i_mode));
+ quota_data_sub(ctx->qctx, &dp->inode, ino,
+ pb.dup_blocks * fs->blocksize);
+ quota_data_inodes(ctx->qctx, &dp->inode, ino, -1);
/* Inode may have changed by block_iterate, so reread it */
- e2fsck_read_inode(ctx, ino, &inode, "delete_file");
- e2fsck_clear_inode(ctx, ino, &inode, 0, "delete_file");
- if (ext2fs_file_acl_block(fs, &inode) &&
+ e2fsck_read_inode(ctx, ino, &dp->inode, "delete_file");
+ e2fsck_clear_inode(ctx, ino, &dp->inode, 0, "delete_file");
+ if (ext2fs_file_acl_block(fs, &dp->inode) &&
(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) {
count = 1;
pctx.errcode = ext2fs_adjust_ea_refcount2(fs,
- ext2fs_file_acl_block(fs, &inode),
+ ext2fs_file_acl_block(fs, &dp->inode),
block_buf, -1, &count);
if (pctx.errcode == EXT2_ET_BAD_EA_BLOCK_NUM) {
pctx.errcode = 0;
count = 1;
}
if (pctx.errcode) {
- pctx.blk = ext2fs_file_acl_block(fs, &inode);
+ pctx.blk = ext2fs_file_acl_block(fs, &dp->inode);
fix_problem(ctx, PR_1B_ADJ_EA_REFCOUNT, &pctx);
}
/*
@@ -672,12 +673,12 @@ static void delete_file(e2fsck_t ctx, ext2_ino_t ino,
*/
if ((count == 0) ||
ext2fs_test_block_bitmap2(ctx->block_dup_map,
- ext2fs_file_acl_block(fs, &inode))) {
- blk64_t blk = ext2fs_file_acl_block(fs, &inode);
+ ext2fs_file_acl_block(fs, &dp->inode))) {
+ blk64_t blk = ext2fs_file_acl_block(fs, &dp->inode);
delete_file_block(fs, &blk,
BLOCK_COUNT_EXTATTR, 0, 0, &pb);
- ext2fs_file_acl_block_set(fs, &inode, blk);
- quota_data_sub(ctx->qctx, &inode, ino, fs->blocksize);
+ ext2fs_file_acl_block_set(fs, &dp->inode, blk);
+ quota_data_sub(ctx->qctx, &dp->inode, ino, fs->blocksize);
}
}
}
diff --git a/e2fsck/pass2.c b/e2fsck/pass2.c
index 882950d..749d264 100644
--- a/e2fsck/pass2.c
+++ b/e2fsck/pass2.c
@@ -668,7 +668,7 @@ static void salvage_directory(ext2_filsys fs,
*/
if ((left < 0) &&
((int) rec_len + left > 8) &&
- (name_len + 8 <= (int) rec_len + left) &&
+ ((int) name_len + 8 <= (int) rec_len + left) &&
dirent->inode <= fs->super->s_inodes_count &&
strnlen(dirent->name, name_len) == name_len) {
(void) ext2fs_set_rec_len(fs, (int) rec_len + left, dirent);
diff --git a/e2fsck/recovery.c b/e2fsck/recovery.c
index bdfcd19..e4e5ae1 100644
--- a/e2fsck/recovery.c
+++ b/e2fsck/recovery.c
@@ -729,12 +729,16 @@ static int scan_revoke_records(journal_t *journal, struct buffer_head *bh,
unsigned long long blocknr;
int err;
- if (record_len == 4)
- blocknr = ext2fs_be32_to_cpu(*((__be32 *)(bh->b_data +
- offset)));
- else
- blocknr = ext2fs_be64_to_cpu(*((__be64 *)(bh->b_data +
- offset)));
+ if (record_len == 4) {
+ __be32 b;
+ memcpy(&b, bh->b_data + offset, sizeof(__be32));
+ blocknr = ext2fs_be32_to_cpu(b);
+ } else {
+ __be64 b;
+ memcpy(&b, bh->b_data + offset, sizeof(__be64));
+ blocknr = ext2fs_be64_to_cpu(b);
+ }
+
offset += record_len;
err = journal_set_revoke(journal, blocknr, sequence);
if (err)
diff --git a/e2fsck/rehash.c b/e2fsck/rehash.c
index 1f0a0b8..3d509ad 100644
--- a/e2fsck/rehash.c
+++ b/e2fsck/rehash.c
@@ -59,7 +59,7 @@ struct fill_dir_struct {
e2fsck_t ctx;
struct hash_entry *harray;
int max_array, num_array;
- int dir_size;
+ unsigned int dir_size;
int compress;
ino_t parent;
};
@@ -122,7 +122,7 @@ static int fill_dir_block(ext2_filsys fs,
if (((dir_offset + rec_len) > fs->blocksize) ||
(rec_len < 8) ||
((rec_len % 4) != 0) ||
- (((dirent->name_len & 0xFF)+8) > rec_len)) {
+ (((dirent->name_len & 0xFF)+8U) > rec_len)) {
fd->err = EXT2_ET_DIR_CORRUPTED;
return BLOCK_ABORT;
}
@@ -404,10 +404,9 @@ static errcode_t copy_dir_entries(e2fsck_t ctx,
char *block_start;
struct hash_entry *ent;
struct ext2_dir_entry *dirent;
- unsigned int rec_len, prev_rec_len;
- int i, left;
+ unsigned int rec_len, prev_rec_len, left, slack, offset;
+ int i;
ext2_dirhash_t prev_hash;
- int offset, slack;
if (ctx->htree_slack_percentage == 255) {
profile_get_uint(ctx->profile, "options",
diff --git a/e2fsck/sigcatcher.c b/e2fsck/sigcatcher.c
index faafb57..13b9bcc 100644
--- a/e2fsck/sigcatcher.c
+++ b/e2fsck/sigcatcher.c
@@ -331,7 +331,8 @@ static const char *lookup_table_fallback(int num, struct str_table *table)
return buf;
}
-static void die_signal_handler(int signum, siginfo_t *siginfo, void *context)
+static void die_signal_handler(int signum, siginfo_t *siginfo,
+ void *context EXT2FS_ATTR((unused)))
{
void *stack_syms[32];
int frames;
diff --git a/e2fsck/super.c b/e2fsck/super.c
index b9870f7..07f5fe5 100644
--- a/e2fsck/super.c
+++ b/e2fsck/super.c
@@ -465,11 +465,11 @@ void check_super_block(e2fsck_t ctx)
ext2_filsys fs = ctx->fs;
blk64_t first_block, last_block;
struct ext2_super_block *sb = fs->super;
+ unsigned int ipg_max;
problem_t problem;
blk64_t blocks_per_group = fs->super->s_blocks_per_group;
__u32 bpg_max, cpg_max;
int inodes_per_block;
- int ipg_max;
int inode_size;
int accept_time_fudge;
int broken_system_clock;
--
1.7.12.rc0.22.gcdd159b
--
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