[RFC][PATCH 5/7] printk: drop vprintk_func function

[Sergey Senozhatsky <sergey.senozhatsky@gmail.com>]

Drop vprintk_func() function and use this_cpu_read(printk_func),
since now we always have alt_printk enabled.

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
---
 kernel/printk/internal.h | 4 ----
 kernel/printk/printk.c   | 4 ++--
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/kernel/printk/internal.h b/kernel/printk/internal.h
index 3eebf6d..b030ca0 100644
--- a/kernel/printk/internal.h
+++ b/kernel/printk/internal.h
@@ -31,10 +31,6 @@ extern raw_spinlock_t logbuf_lock;
  * via per-CPU variable.
  */
 DECLARE_PER_CPU(printk_func_t, printk_func);
-static inline __printf(1, 0) int vprintk_func(const char *fmt, va_list args)
-{
-	return this_cpu_read(printk_func)(fmt, args);
-}
 
 void alt_printk_enter(void);
 void alt_printk_exit(void);
diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index c7ffbef..2afa16b 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -1922,7 +1922,7 @@ EXPORT_SYMBOL(vprintk_emit);
 
 asmlinkage int vprintk(const char *fmt, va_list args)
 {
-	return vprintk_func(fmt, args);
+	return this_cpu_read(printk_func)(fmt, args);
 }
 EXPORT_SYMBOL(vprintk);
 
@@ -1984,7 +1984,7 @@ asmlinkage __visible int printk(const char *fmt, ...)
 	int r;
 
 	va_start(args, fmt);
-	r = vprintk_func(fmt, args);
+	r = this_cpu_read(printk_func)(fmt, args);
 	va_end(args);
 
 	return r;
-- 
2.10.0.372.g6fe1b14