treewide: use __printf not __attribute__((format(printf,...)))

Standardize the style for compiler based printf format verification.
Standardized the location of __printf too.

Done via script and a little typing.

$ grep -rPl --include=*.[ch] -w "__attribute__" * | \
  grep -vP "^(tools|scripts|include/linux/compiler-gcc.h)" | \
  xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.+)\s*,\s*(.+)\s*\)\s*\)\s*\)/__printf($1, $2)/g ; print; }'

[akpm@linux-foundation.org: revert arch bits]
Signed-off-by: Joe Perches <joe@perches.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

22 files changed, 167 insertions, 192 deletions

diff --git a/include/linux/audit.h b/include/linux/audit.h
index 0c8006129fb2..2f81c6f3b630 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -584,14 +584,13 @@ extern int audit_signals;
 #ifdef CONFIG_AUDIT
 /* These are defined in audit.c */
                                 /* Public API */
-extern void                 audit_log(struct audit_context *ctx, gfp_t gfp_mask,
-                                      int type, const char *fmt, ...)
-                                      __attribute__((format(printf,4,5)));
+extern __printf(4, 5)
+void audit_log(struct audit_context *ctx, gfp_t gfp_mask, int type,
+               const char *fmt, ...);
 
 extern struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, int type);
-extern void                 audit_log_format(struct audit_buffer *ab,
-                                             const char *fmt, ...)
-                            __attribute__((format(printf,2,3)));
+extern __printf(2, 3)
+void audit_log_format(struct audit_buffer *ab, const char *fmt, ...);
 extern void                 audit_log_end(struct audit_buffer *ab);
 extern int                  audit_string_contains_control(const char *string,
                                                           size_t len);
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 8e9e4bc6d73b..4d1a0748eaf8 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -170,7 +170,7 @@ extern void blk_trace_shutdown(struct request_queue *);
 extern int do_blk_trace_setup(struct request_queue *q, char *name,
                               dev_t dev, struct block_device *bdev,
                               struct blk_user_trace_setup *buts);
-extern __attribute__((format(printf, 2, 3)))
+extern __printf(2, 3)
 void __trace_note_message(struct blk_trace *, const char *fmt, ...);
 
 /**
diff --git a/include/linux/device.h b/include/linux/device.h
index 85e78fc7d7fd..e88abeecfadf 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -622,8 +622,8 @@ static inline const char *dev_name(const struct device *dev)
         return kobject_name(&dev->kobj);
 }
 
-extern int dev_set_name(struct device *dev, const char *name, ...)
-                        __attribute__((format(printf, 2, 3)));
+extern __printf(2, 3)
+int dev_set_name(struct device *dev, const char *name, ...);
 
 #ifdef CONFIG_NUMA
 static inline int dev_to_node(struct device *dev)
@@ -753,10 +753,10 @@ extern struct device *device_create_vargs(struct class *cls,
                                           void *drvdata,
                                           const char *fmt,
                                           va_list vargs);
-extern struct device *device_create(struct class *cls, struct device *parent,
-                                    dev_t devt, void *drvdata,
-                                    const char *fmt, ...)
-                                    __attribute__((format(printf, 5, 6)));
+extern __printf(5, 6)
+struct device *device_create(struct class *cls, struct device *parent,
+                             dev_t devt, void *drvdata,
+                             const char *fmt, ...);
 extern void device_destroy(struct class *cls, dev_t devt);
 
 /*
@@ -800,64 +800,56 @@ extern const char *dev_driver_string(const struct device *dev);
 
 extern int __dev_printk(const char *level, const struct device *dev,
                         struct va_format *vaf);
-extern int dev_printk(const char *level, const struct device *dev,
-                      const char *fmt, ...)
-        __attribute__ ((format (printf, 3, 4)));
-extern int dev_emerg(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int dev_alert(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int dev_crit(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int dev_err(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int dev_warn(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int dev_notice(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int _dev_info(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
+extern __printf(3, 4)
+int dev_printk(const char *level, const struct device *dev,
+               const char *fmt, ...)
+        ;
+extern __printf(2, 3)
+int dev_emerg(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int dev_alert(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int dev_crit(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int dev_err(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int dev_warn(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int dev_notice(const struct device *dev, const char *fmt, ...);
+extern __printf(2, 3)
+int _dev_info(const struct device *dev, const char *fmt, ...);
 
 #else
 
 static inline int __dev_printk(const char *level, const struct device *dev,
                                struct va_format *vaf)
-         { return 0; }
-static inline int dev_printk(const char *level, const struct device *dev,
-                      const char *fmt, ...)
-        __attribute__ ((format (printf, 3, 4)));
-static inline int dev_printk(const char *level, const struct device *dev,
-                      const char *fmt, ...)
-         { return 0; }
-
-static inline int dev_emerg(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-static inline int dev_emerg(const struct device *dev, const char *fmt, ...)
-        { return 0; }
-static inline int dev_crit(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-static inline int dev_crit(const struct device *dev, const char *fmt, ...)
-        { return 0; }
-static inline int dev_alert(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-static inline int dev_alert(const struct device *dev, const char *fmt, ...)
-        { return 0; }
-static inline int dev_err(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-static inline int dev_err(const struct device *dev, const char *fmt, ...)
-        { return 0; }
-static inline int dev_warn(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-static inline int dev_warn(const struct device *dev, const char *fmt, ...)
-        { return 0; }
-static inline int dev_notice(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-static inline int dev_notice(const struct device *dev, const char *fmt, ...)
-        { return 0; }
-static inline int _dev_info(const struct device *dev, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-static inline int _dev_info(const struct device *dev, const char *fmt, ...)
-        { return 0; }
+{ return 0; }
+static inline __printf(3, 4)
+int dev_printk(const char *level, const struct device *dev,
+               const char *fmt, ...)
+{ return 0; }
+
+static inline __printf(2, 3)
+int dev_emerg(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int dev_crit(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int dev_alert(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int dev_err(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int dev_warn(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int dev_notice(const struct device *dev, const char *fmt, ...)
+{ return 0; }
+static inline __printf(2, 3)
+int _dev_info(const struct device *dev, const char *fmt, ...)
+{ return 0; }
 
 #endif
 
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 13aae8087b56..0564e3c39882 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -37,22 +37,21 @@ int ddebug_add_module(struct _ddebug *tab, unsigned int n,
 
 #if defined(CONFIG_DYNAMIC_DEBUG)
 extern int ddebug_remove_module(const char *mod_name);
-extern int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
+extern __printf(2, 3)
+int __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...);
 
 struct device;
 
-extern int __dynamic_dev_dbg(struct _ddebug *descriptor,
-                             const struct device *dev,
-                             const char *fmt, ...)
-        __attribute__ ((format (printf, 3, 4)));
+extern __printf(3, 4)
+int __dynamic_dev_dbg(struct _ddebug *descriptor, const struct device *dev,
+                      const char *fmt, ...);
 
 struct net_device;
 
-extern int __dynamic_netdev_dbg(struct _ddebug *descriptor,
-                             const struct net_device *dev,
-                             const char *fmt, ...)
-        __attribute__ ((format (printf, 3, 4)));
+extern __printf(3, 4)
+int __dynamic_netdev_dbg(struct _ddebug *descriptor,
+                         const struct net_device *dev,
+                         const char *fmt, ...);
 
 #define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt)                \
         static struct _ddebug __used __aligned(8)               \
diff --git a/include/linux/ext3_fs.h b/include/linux/ext3_fs.h
index 67a803aee619..81965cce6bfa 100644
--- a/include/linux/ext3_fs.h
+++ b/include/linux/ext3_fs.h
@@ -937,15 +937,15 @@ extern int ext3_group_extend(struct super_block *sb,
                                 ext3_fsblk_t n_blocks_count);
 
 /* super.c */
-extern void ext3_error (struct super_block *, const char *, const char *, ...)
-        __attribute__ ((format (printf, 3, 4)));
+extern __printf(3, 4)
+void ext3_error(struct super_block *, const char *, const char *, ...);
 extern void __ext3_std_error (struct super_block *, const char *, int);
-extern void ext3_abort (struct super_block *, const char *, const char *, ...)
-        __attribute__ ((format (printf, 3, 4)));
-extern void ext3_warning (struct super_block *, const char *, const char *, ...)
-        __attribute__ ((format (printf, 3, 4)));
-extern void ext3_msg(struct super_block *, const char *, const char *, ...)
-        __attribute__ ((format (printf, 3, 4)));
+extern __printf(3, 4)
+void ext3_abort(struct super_block *, const char *, const char *, ...);
+extern __printf(3, 4)
+void ext3_warning(struct super_block *, const char *, const char *, ...);
+extern __printf(3, 4)
+void ext3_msg(struct super_block *, const char *, const char *, ...);
 extern void ext3_update_dynamic_rev (struct super_block *sb);
 
 #define ext3_std_error(sb, errno)                               \
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 87b4c6b9692d..7a049fd2aa4c 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2635,8 +2635,8 @@ static const struct file_operations __fops = {				\
         .llseek  = generic_file_llseek,                                 \
 };
 
-static inline void __attribute__((format(printf, 1, 2)))
-__simple_attr_check_format(const char *fmt, ...)
+static inline __printf(1, 2)
+void __simple_attr_check_format(const char *fmt, ...)
 {
         /* don't do anything, just let the compiler check the arguments; */
 }
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index af095b54502e..ce31408b1e47 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -492,10 +492,10 @@ static inline void fscache_end_io(struct fscache_retrieval *op,
 /*
  * out-of-line cache backend functions
  */
-extern void fscache_init_cache(struct fscache_cache *cache,
-                               const struct fscache_cache_ops *ops,
-                               const char *idfmt,
-                               ...) __attribute__ ((format (printf, 3, 4)));
+extern __printf(3, 4)
+void fscache_init_cache(struct fscache_cache *cache,
+                        const struct fscache_cache_ops *ops,
+                        const char *idfmt, ...);
 
 extern int fscache_add_cache(struct fscache_cache *cache,
                              struct fscache_object *fsdef,
diff --git a/include/linux/gameport.h b/include/linux/gameport.h
index b65a6f472775..069ee4139105 100644
--- a/include/linux/gameport.h
+++ b/include/linux/gameport.h
@@ -78,8 +78,8 @@ static inline void gameport_register_port(struct gameport *gameport)
 
 void gameport_unregister_port(struct gameport *gameport);
 
-void gameport_set_phys(struct gameport *gameport, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
+__printf(2, 3)
+void gameport_set_phys(struct gameport *gameport, const char *fmt, ...);
 
 #else
 
@@ -93,8 +93,8 @@ static inline void gameport_unregister_port(struct gameport *gameport)
         return;
 }
 
-static inline void gameport_set_phys(struct gameport *gameport,
-                                     const char *fmt, ...)
+static inline __printf(2, 3)
+void gameport_set_phys(struct gameport *gameport, const char *fmt, ...)
 {
         return;
 }
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 0df513b7a9f8..387571959dd9 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -101,9 +101,8 @@ static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, u
 #endif /*CONFIG_KALLSYMS*/
 
 /* This macro allows us to keep printk typechecking */
-static void __check_printsym_format(const char *fmt, ...)
-__attribute__((format(printf,1,2)));
-static inline void __check_printsym_format(const char *fmt, ...)
+static __printf(1, 2)
+void __check_printsym_format(const char *fmt, ...)
 {
 }
 
diff --git a/include/linux/kdb.h b/include/linux/kdb.h
index 529d9a0c75a5..064725854db8 100644
--- a/include/linux/kdb.h
+++ b/include/linux/kdb.h
@@ -114,12 +114,9 @@ typedef enum {
 } kdb_reason_t;
 
 extern int kdb_trap_printk;
-extern int vkdb_printf(const char *fmt, va_list args)
-            __attribute__ ((format (printf, 1, 0)));
-extern int kdb_printf(const char *, ...)
-            __attribute__ ((format (printf, 1, 2)));
-typedef int (*kdb_printf_t)(const char *, ...)
-             __attribute__ ((format (printf, 1, 2)));
+extern __printf(1, 0) int vkdb_printf(const char *fmt, va_list args);
+extern __printf(1, 2) int kdb_printf(const char *, ...);
+typedef __printf(1, 2) int (*kdb_printf_t)(const char *, ...);
 
 extern void kdb_init(int level);
 
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 8eefcf7e95eb..e40c950e1d62 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -296,20 +296,18 @@ extern long long simple_strtoll(const char *,char **,unsigned int);
 #define strict_strtoull kstrtoull
 #define strict_strtoll  kstrtoll
 
-extern int sprintf(char * buf, const char * fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int vsprintf(char *buf, const char *, va_list)
-        __attribute__ ((format (printf, 2, 0)));
-extern int snprintf(char * buf, size_t size, const char * fmt, ...)
-        __attribute__ ((format (printf, 3, 4)));
-extern int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
-        __attribute__ ((format (printf, 3, 0)));
-extern int scnprintf(char * buf, size_t size, const char * fmt, ...)
-        __attribute__ ((format (printf, 3, 4)));
-extern int vscnprintf(char *buf, size_t size, const char *fmt, va_list args)
-        __attribute__ ((format (printf, 3, 0)));
-extern char *kasprintf(gfp_t gfp, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
+extern __printf(2, 3) int sprintf(char *buf, const char * fmt, ...);
+extern __printf(2, 0) int vsprintf(char *buf, const char *, va_list);
+extern __printf(3, 4)
+int snprintf(char *buf, size_t size, const char *fmt, ...);
+extern __printf(3, 0)
+int vsnprintf(char *buf, size_t size, const char *fmt, va_list args);
+extern __printf(3, 4)
+int scnprintf(char *buf, size_t size, const char *fmt, ...);
+extern __printf(3, 0)
+int vscnprintf(char *buf, size_t size, const char *fmt, va_list args);
+extern __printf(2, 3)
+char *kasprintf(gfp_t gfp, const char *fmt, ...);
 extern char *kvasprintf(gfp_t gfp, const char *fmt, va_list args);
 
 extern int sscanf(const char *, const char *, ...)
@@ -427,8 +425,8 @@ extern void tracing_start(void);
 extern void tracing_stop(void);
 extern void ftrace_off_permanent(void);
 
-static inline void __attribute__ ((format (printf, 1, 2)))
-____trace_printk_check_format(const char *fmt, ...)
+static inline __printf(1, 2)
+void ____trace_printk_check_format(const char *fmt, ...)
 {
 }
 #define __trace_printk_check_format(fmt, args...)                       \
@@ -467,13 +465,11 @@ do {									\
                 __trace_printk(_THIS_IP_, fmt, ##args);         \
 } while (0)
 
-extern int
-__trace_bprintk(unsigned long ip, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
+extern __printf(2, 3)
+int __trace_bprintk(unsigned long ip, const char *fmt, ...);
 
-extern int
-__trace_printk(unsigned long ip, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
+extern __printf(2, 3)
+int __trace_printk(unsigned long ip, const char *fmt, ...);
 
 extern void trace_dump_stack(void);
 
@@ -502,8 +498,8 @@ __ftrace_vprintk(unsigned long ip, const char *fmt, va_list ap);
 
 extern void ftrace_dump(enum ftrace_dump_mode oops_dump_mode);
 #else
-static inline int
-trace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
+static inline __printf(1, 2)
+int trace_printk(const char *fmt, ...);
 
 static inline void tracing_start(void) { }
 static inline void tracing_stop(void) { }
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index c2478a342cd7..8944ebe7963e 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -130,8 +130,8 @@ int kexec_should_crash(struct task_struct *);
 void crash_save_cpu(struct pt_regs *regs, int cpu);
 void crash_save_vmcoreinfo(void);
 void arch_crash_save_vmcoreinfo(void);
-void vmcoreinfo_append_str(const char *fmt, ...)
-        __attribute__ ((format (printf, 1, 2)));
+__printf(1, 2)
+void vmcoreinfo_append_str(const char *fmt, ...);
 unsigned long paddr_vmcoreinfo_note(void);
 
 #define VMCOREINFO_OSRELEASE(value) \
diff --git a/include/linux/kmod.h b/include/linux/kmod.h
index 0da38cf7db7b..b16f65390734 100644
--- a/include/linux/kmod.h
+++ b/include/linux/kmod.h
@@ -32,8 +32,8 @@
 extern char modprobe_path[]; /* for sysctl */
 /* modprobe exit status on success, -ve on error.  Return value
  * usually useless though. */
-extern int __request_module(bool wait, const char *name, ...) \
-        __attribute__((format(printf, 2, 3)));
+extern __printf(2, 3)
+int __request_module(bool wait, const char *name, ...);
 #define request_module(mod...) __request_module(true, mod)
 #define request_module_nowait(mod...) __request_module(false, mod)
 #define try_then_request_module(x, mod...) \
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index 668729cc0fe9..ad81e1c51487 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -72,8 +72,8 @@ struct kobject {
         unsigned int uevent_suppress:1;
 };
 
-extern int kobject_set_name(struct kobject *kobj, const char *name, ...)
-                            __attribute__((format(printf, 2, 3)));
+extern __printf(2, 3)
+int kobject_set_name(struct kobject *kobj, const char *name, ...);
 extern int kobject_set_name_vargs(struct kobject *kobj, const char *fmt,
                                   va_list vargs);
 
@@ -83,15 +83,13 @@ static inline const char *kobject_name(const struct kobject *kobj)
 }
 
 extern void kobject_init(struct kobject *kobj, struct kobj_type *ktype);
-extern int __must_check kobject_add(struct kobject *kobj,
-                                    struct kobject *parent,
-                                    const char *fmt, ...)
-        __attribute__((format(printf, 3, 4)));
-extern int __must_check kobject_init_and_add(struct kobject *kobj,
-                                             struct kobj_type *ktype,
-                                             struct kobject *parent,
-                                             const char *fmt, ...)
-        __attribute__((format(printf, 4, 5)));
+extern __printf(3, 4) __must_check
+int kobject_add(struct kobject *kobj, struct kobject *parent,
+                const char *fmt, ...);
+extern __printf(4, 5) __must_check
+int kobject_init_and_add(struct kobject *kobj,
+                         struct kobj_type *ktype, struct kobject *parent,
+                         const char *fmt, ...);
 
 extern void kobject_del(struct kobject *kobj);
 
@@ -212,8 +210,8 @@ int kobject_uevent(struct kobject *kobj, enum kobject_action action);
 int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
                         char *envp[]);
 
-int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...)
-        __attribute__((format (printf, 2, 3)));
+__printf(2, 3)
+int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...);
 
 int kobject_action_type(const char *buf, size_t count,
                         enum kobject_action *type);
@@ -226,7 +224,7 @@ static inline int kobject_uevent_env(struct kobject *kobj,
                                       char *envp[])
 { return 0; }
 
-static inline __attribute__((format(printf, 2, 3)))
+static inline __printf(2, 3)
 int add_uevent_var(struct kobj_uevent_env *env, const char *format, ...)
 { return 0; }
 
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 1e923e5e88e8..5cac19b3a266 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -4,11 +4,11 @@
 #include <linux/err.h>
 #include <linux/sched.h>
 
+__printf(4, 5)
 struct task_struct *kthread_create_on_node(int (*threadfn)(void *data),
                                            void *data,
                                            int node,
-                                           const char namefmt[], ...)
-        __attribute__((format(printf, 4, 5)));
+                                           const char namefmt[], ...);
 
 #define kthread_create(threadfn, data, namefmt, arg...) \
         kthread_create_on_node(threadfn, data, -1, namefmt, ##arg)
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 23fa829bf7a3..cafc09a64fe4 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1256,13 +1256,13 @@ static inline int sata_srst_pmp(struct ata_link *link)
 /*
  * printk helpers
  */
-__attribute__((format (printf, 3, 4)))
+__printf(3, 4)
 int ata_port_printk(const struct ata_port *ap, const char *level,
                     const char *fmt, ...);
-__attribute__((format (printf, 3, 4)))
+__printf(3, 4)
 int ata_link_printk(const struct ata_link *link, const char *level,
                     const char *fmt, ...);
-__attribute__((format (printf, 3, 4)))
+__printf(3, 4)
 int ata_dev_printk(const struct ata_device *dev, const char *level,
                    const char *fmt, ...);
 
@@ -1304,10 +1304,10 @@ void ata_print_version(const struct device *dev, const char *version);
 /*
  * ata_eh_info helpers
  */
-extern void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
+extern __printf(2, 3)
+void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...);
+extern __printf(2, 3)
+void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...);
 extern void ata_ehi_clear_desc(struct ata_eh_info *ehi);
 
 static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi)
@@ -1321,8 +1321,8 @@ static inline void ata_ehi_hotplugged(struct ata_eh_info *ehi)
 /*
  * port description helpers
  */
-extern void ata_port_desc(struct ata_port *ap, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
+extern __printf(2, 3)
+void ata_port_desc(struct ata_port *ap, const char *fmt, ...);
 #ifdef CONFIG_PCI
 extern void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset,
                                const char *name);
diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h
index 97491f78b08c..c5d52780d6a0 100644
--- a/include/linux/mmiotrace.h
+++ b/include/linux/mmiotrace.h
@@ -49,8 +49,7 @@ extern void mmiotrace_ioremap(resource_size_t offset, unsigned long size,
 extern void mmiotrace_iounmap(volatile void __iomem *addr);
 
 /* For anyone to insert markers. Remember trailing newline. */
-extern int mmiotrace_printk(const char *fmt, ...)
-                                __attribute__ ((format (printf, 1, 2)));
+extern __printf(1, 2) int mmiotrace_printk(const char *fmt, ...);
 #else /* !CONFIG_MMIOTRACE: */
 static inline int is_kmmio_active(void)
 {
@@ -71,10 +70,7 @@ static inline void mmiotrace_iounmap(volatile void __iomem *addr)
 {
 }
 
-static inline int mmiotrace_printk(const char *fmt, ...)
-                                __attribute__ ((format (printf, 1, 0)));
-
-static inline int mmiotrace_printk(const char *fmt, ...)
+static inline __printf(1, 2) int mmiotrace_printk(const char *fmt, ...)
 {
         return 0;
 }
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index df1c836e6948..cbeb5867cff7 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2622,23 +2622,23 @@ static inline const char *netdev_name(const struct net_device *dev)
 extern int __netdev_printk(const char *level, const struct net_device *dev,
                         struct va_format *vaf);
 
-extern int netdev_printk(const char *level, const struct net_device *dev,
-                         const char *format, ...)
-        __attribute__ ((format (printf, 3, 4)));
-extern int netdev_emerg(const struct net_device *dev, const char *format, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int netdev_alert(const struct net_device *dev, const char *format, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int netdev_crit(const struct net_device *dev, const char *format, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int netdev_err(const struct net_device *dev, const char *format, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int netdev_warn(const struct net_device *dev, const char *format, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int netdev_notice(const struct net_device *dev, const char *format, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int netdev_info(const struct net_device *dev, const char *format, ...)
-        __attribute__ ((format (printf, 2, 3)));
+extern __printf(3, 4)
+int netdev_printk(const char *level, const struct net_device *dev,
+                  const char *format, ...);
+extern __printf(2, 3)
+int netdev_emerg(const struct net_device *dev, const char *format, ...);
+extern __printf(2, 3)
+int netdev_alert(const struct net_device *dev, const char *format, ...);
+extern __printf(2, 3)
+int netdev_crit(const struct net_device *dev, const char *format, ...);
+extern __printf(2, 3)
+int netdev_err(const struct net_device *dev, const char *format, ...);
+extern __printf(2, 3)
+int netdev_warn(const struct net_device *dev, const char *format, ...);
+extern __printf(2, 3)
+int netdev_notice(const struct net_device *dev, const char *format, ...);
+extern __printf(2, 3)
+int netdev_info(const struct net_device *dev, const char *format, ...);
 
 #define MODULE_ALIAS_NETDEV(device) \
         MODULE_ALIAS("netdev-" device)
diff --git a/include/linux/printk.h b/include/linux/printk.h
index 0101d55d9651..f0e22f75143f 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -82,22 +82,22 @@ struct va_format {
  * Dummy printk for disabled debugging statements to use whilst maintaining
  * gcc's format and side-effect checking.
  */
-static inline __attribute__ ((format (printf, 1, 2)))
+static inline __printf(1, 2)
 int no_printk(const char *fmt, ...)
 {
         return 0;
 }
 
-extern asmlinkage __attribute__ ((format (printf, 1, 2)))
+extern asmlinkage __printf(1, 2)
 void early_printk(const char *fmt, ...);
 
 extern int printk_needs_cpu(int cpu);
 extern void printk_tick(void);
 
 #ifdef CONFIG_PRINTK
-asmlinkage __attribute__ ((format (printf, 1, 0)))
+asmlinkage __printf(1, 0)
 int vprintk(const char *fmt, va_list args);
-asmlinkage __attribute__ ((format (printf, 1, 2))) __cold
+asmlinkage __printf(1, 2) __cold
 int printk(const char *fmt, ...);
 
 /*
@@ -117,12 +117,12 @@ extern int kptr_restrict;
 void log_buf_kexec_setup(void);
 void __init setup_log_buf(int early);
 #else
-static inline __attribute__ ((format (printf, 1, 0)))
+static inline __printf(1, 0)
 int vprintk(const char *s, va_list args)
 {
         return 0;
 }
-static inline __attribute__ ((format (printf, 1, 2))) __cold
+static inline __printf(1, 2) __cold
 int printk(const char *s, ...)
 {
         return 0;
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 26f9e3612e0f..d93f95e6177c 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -31,7 +31,7 @@ static inline bool is_quota_modification(struct inode *inode, struct iattr *ia)
 #define quota_error(sb, fmt, args...) \
         __quota_error((sb), __func__, fmt , ## args)
 
-extern __attribute__((format (printf, 3, 4)))
+extern __printf(3, 4)
 void __quota_error(struct super_block *sb, const char *func,
                    const char *fmt, ...);
 
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index be720cd2038d..0b69a4684216 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -84,8 +84,7 @@ int seq_putc(struct seq_file *m, char c);
 int seq_puts(struct seq_file *m, const char *s);
 int seq_write(struct seq_file *seq, const void *data, size_t len);
 
-int seq_printf(struct seq_file *, const char *, ...)
-        __attribute__ ((format (printf,2,3)));
+__printf(2, 3) int seq_printf(struct seq_file *, const char *, ...);
 
 int seq_path(struct seq_file *, struct path *, char *);
 int seq_dentry(struct seq_file *, struct dentry *, char *);
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index 5cf397ceb726..7dadc3df0c77 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -29,10 +29,10 @@ trace_seq_init(struct trace_seq *s)
  * Currently only defined when tracing is enabled.
  */
 #ifdef CONFIG_TRACING
-extern int trace_seq_printf(struct trace_seq *s, const char *fmt, ...)
-        __attribute__ ((format (printf, 2, 3)));
-extern int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args)
-        __attribute__ ((format (printf, 2, 0)));
+extern __printf(2, 3)
+int trace_seq_printf(struct trace_seq *s, const char *fmt, ...);
+extern __printf(2, 0)
+int trace_seq_vprintf(struct trace_seq *s, const char *fmt, va_list args);
 extern int
 trace_seq_bprintf(struct trace_seq *s, const char *fmt, const u32 *binary);
 extern int trace_print_seq(struct seq_file *m, struct trace_seq *s);