[PATCH v2] Fix gcc-4.5.2 "statement with no effect" warnings in UBIFS
maksim.rayskiy at gmail.com
maksim.rayskiy at gmail.com
Tue Apr 12 18:14:56 EDT 2011
From: Maksim Rayskiy <maksim.rayskiy at gmail.com>
When compiling UBIFS with CONFIG_UBIFS_FS_DEBUG not set,
gcc-4.5.2 generates a slew of "warning: statement with no effect"
on references to non-void functions defined as 0.
To avoid these warnings, replace #defines with dummy inline functions.
Signed-off-by: Maksim Rayskiy <maksim.rayskiy at gmail.com>
---
fs/ubifs/debug.h | 137 +++++++++++++++++++++++++++++++----------------------
1 files changed, 80 insertions(+), 57 deletions(-)
diff --git a/fs/ubifs/debug.h b/fs/ubifs/debug.h
index 919f0de..4f6520e 100644
--- a/fs/ubifs/debug.h
+++ b/fs/ubifs/debug.h
@@ -23,6 +23,12 @@
#ifndef __UBIFS_DEBUG_H__
#define __UBIFS_DEBUG_H__
+/* Checking helper functions */
+typedef int (*dbg_leaf_callback)(struct ubifs_info *c,
+ struct ubifs_zbranch *zbr, void *priv);
+typedef int (*dbg_znode_callback)(struct ubifs_info *c,
+ struct ubifs_znode *znode, void *priv);
+
#ifdef CONFIG_UBIFS_FS_DEBUG
/**
@@ -270,11 +276,6 @@ void dbg_dump_tnc(struct ubifs_info *c);
void dbg_dump_index(struct ubifs_info *c);
void dbg_dump_lpt_lebs(const struct ubifs_info *c);
-/* Checking helper functions */
-typedef int (*dbg_leaf_callback)(struct ubifs_info *c,
- struct ubifs_zbranch *zbr, void *priv);
-typedef int (*dbg_znode_callback)(struct ubifs_info *c,
- struct ubifs_znode *znode, void *priv);
int dbg_walk_index(struct ubifs_info *c, dbg_leaf_callback leaf_cb,
dbg_znode_callback znode_cb, void *priv);
@@ -401,58 +402,80 @@ void dbg_debugfs_exit_fs(struct ubifs_info *c);
#define DBGKEY(key) ((char *)(key))
#define DBGKEY1(key) ((char *)(key))
-#define ubifs_debugging_init(c) 0
-#define ubifs_debugging_exit(c) ({})
-
-#define dbg_ntype(type) ""
-#define dbg_cstate(cmt_state) ""
-#define dbg_jhead(jhead) ""
-#define dbg_get_key_dump(c, key) ({})
-#define dbg_dump_inode(c, inode) ({})
-#define dbg_dump_node(c, node) ({})
-#define dbg_dump_lpt_node(c, node, lnum, offs) ({})
-#define dbg_dump_budget_req(req) ({})
-#define dbg_dump_lstats(lst) ({})
-#define dbg_dump_budg(c) ({})
-#define dbg_dump_lprop(c, lp) ({})
-#define dbg_dump_lprops(c) ({})
-#define dbg_dump_lpt_info(c) ({})
-#define dbg_dump_leb(c, lnum) ({})
-#define dbg_dump_znode(c, znode) ({})
-#define dbg_dump_heap(c, heap, cat) ({})
-#define dbg_dump_pnode(c, pnode, parent, iip) ({})
-#define dbg_dump_tnc(c) ({})
-#define dbg_dump_index(c) ({})
-#define dbg_dump_lpt_lebs(c) ({})
-
-#define dbg_walk_index(c, leaf_cb, znode_cb, priv) 0
-#define dbg_old_index_check_init(c, zroot) 0
-#define dbg_save_space_info(c) ({})
-#define dbg_check_space_info(c) 0
-#define dbg_check_old_index(c, zroot) 0
-#define dbg_check_cats(c) 0
-#define dbg_check_ltab(c) 0
-#define dbg_chk_lpt_free_spc(c) 0
-#define dbg_chk_lpt_sz(c, action, len) 0
-#define dbg_check_synced_i_size(inode) 0
-#define dbg_check_dir_size(c, dir) 0
-#define dbg_check_tnc(c, x) 0
-#define dbg_check_idx_size(c, idx_size) 0
-#define dbg_check_filesystem(c) 0
-#define dbg_check_heap(c, heap, cat, add_pos) ({})
-#define dbg_check_lprops(c) 0
-#define dbg_check_lpt_nodes(c, cnode, row, col) 0
-#define dbg_check_inode_size(c, inode, size) 0
-#define dbg_check_data_nodes_order(c, head) 0
-#define dbg_check_nondata_nodes_order(c, head) 0
-#define dbg_force_in_the_gaps_enabled 0
-#define dbg_force_in_the_gaps() 0
-#define dbg_failure_mode 0
-
-#define dbg_debugfs_init() 0
-#define dbg_debugfs_exit()
-#define dbg_debugfs_init_fs(c) 0
-#define dbg_debugfs_exit_fs(c) 0
+static inline int ubifs_debugging_init(struct ubifs_info *c) { return 0; }
+static inline void ubifs_debugging_exit(struct ubifs_info *c) {}
+static inline const char *dbg_ntype(int type) { return ""; }
+static inline const char *dbg_cstate(int cmt_state) { return ""; }
+static inline const char *dbg_jhead(int jhead) { return ""; }
+static inline const char *dbg_get_key_dump(const struct ubifs_info *c,
+ const union ubifs_key *key) { return ""; }
+static inline void dbg_dump_inode(const struct ubifs_info *c,
+ const struct inode *inode) {}
+static inline void dbg_dump_node(const struct ubifs_info *c,
+ const void *node) {}
+static inline void dbg_dump_lpt_node(const struct ubifs_info *c,
+ void *node, int lnum, int offs) {}
+static inline void dbg_dump_budget_req(const struct ubifs_budget_req *req) {}
+static inline void dbg_dump_lstats(const struct ubifs_lp_stats *lst) {}
+static inline void dbg_dump_budg(struct ubifs_info *c) {}
+static inline void dbg_dump_lprop(const struct ubifs_info *c,
+ const struct ubifs_lprops *lp) {}
+static inline void dbg_dump_lprops(struct ubifs_info *c) {}
+static inline void dbg_dump_lpt_info(struct ubifs_info *c) {}
+static inline void dbg_dump_leb(const struct ubifs_info *c, int lnum) {}
+static inline void dbg_dump_znode(const struct ubifs_info *c,
+ const struct ubifs_znode *znode) {}
+static inline void dbg_dump_heap(struct ubifs_info *c,
+ struct ubifs_lpt_heap *heap, int cat) {}
+static inline void dbg_dump_pnode(struct ubifs_info *c,
+ struct ubifs_pnode *pnode, struct ubifs_nnode *parent, int iip) {}
+static inline void dbg_dump_tnc(struct ubifs_info *c) {}
+static inline void dbg_dump_index(struct ubifs_info *c) {}
+static inline void dbg_dump_lpt_lebs(const struct ubifs_info *c) {}
+
+static inline int dbg_walk_index(struct ubifs_info *c,
+ dbg_leaf_callback leaf_cb, dbg_znode_callback znode_cb, void *priv)
+ { return 0; }
+
+/* Checking functions */
+static inline void dbg_save_space_info(struct ubifs_info *c) {}
+static inline int dbg_check_space_info(struct ubifs_info *c) { return 0; }
+static inline int dbg_check_lprops(struct ubifs_info *c) { return 0; }
+static inline int dbg_old_index_check_init(struct ubifs_info *c,
+ struct ubifs_zbranch *zroot) { return 0; }
+static inline int dbg_check_old_index(struct ubifs_info *c,
+ struct ubifs_zbranch *zroot) { return 0; }
+static inline int dbg_check_cats(struct ubifs_info *c) { return 0; }
+static inline int dbg_check_ltab(struct ubifs_info *c) { return 0; }
+static inline int dbg_chk_lpt_free_spc(struct ubifs_info *c) { return 0; }
+static inline int dbg_chk_lpt_sz(struct ubifs_info *c,
+ int action, int len) { return 0; }
+static inline int dbg_check_synced_i_size(struct inode *inode) { return 0; }
+static inline int dbg_check_dir_size(struct ubifs_info *c,
+ const struct inode *dir) { return 0; }
+static inline int dbg_check_tnc(struct ubifs_info *c, int extra) { return 0; }
+static inline int dbg_check_idx_size(struct ubifs_info *c,
+ long long idx_size) { return 0; }
+static inline int dbg_check_filesystem(struct ubifs_info *c) { return 0; }
+static inline void dbg_check_heap(struct ubifs_info *c,
+ struct ubifs_lpt_heap *heap, int cat, int add_pos) {}
+static inline int dbg_check_lpt_nodes(struct ubifs_info *c,
+ struct ubifs_cnode *cnode, int row, int col) { return 0; }
+static inline int dbg_check_inode_size(struct ubifs_info *c,
+ const struct inode *inode, loff_t size) { return 0; }
+static inline int dbg_check_data_nodes_order(struct ubifs_info *c,
+ struct list_head *head) { return 0; }
+static inline int dbg_check_nondata_nodes_order(struct ubifs_info *c,
+ struct list_head *head) { return 0; }
+
+#define dbg_force_in_the_gaps_enabled 0
+static inline int dbg_force_in_the_gaps(void) { return 0; }
+#define dbg_failure_mode 0
+
+static inline int dbg_debugfs_init(void) { return 0; }
+static inline void dbg_debugfs_exit(void) {}
+static inline int dbg_debugfs_init_fs(struct ubifs_info *c) { return 0; }
+static inline int dbg_debugfs_exit_fs(struct ubifs_info *c) { return 0; }
#endif /* !CONFIG_UBIFS_FS_DEBUG */
#endif /* !__UBIFS_DEBUG_H__ */
--
1.7.1
More information about the linux-mtd
mailing list