[PATCH] sched_clock: Remove deprecated setup_sched_clock() API

[Stephen Boyd]

Remove the 32-bit only setup_sched_clock() API now that all users
have been converted to the 64-bit friendly sched_clock_register().

Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx>
---

This is based on Linus' tree at a7963eb7f4c4 (Merge branch 'for_linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs, 2014-04-07)
but technically this only needs to be based on 2d1eb87ae1e6 (Merge branch
'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm, 2014-04-05) because
the last user of setup_sched_clock() was in rmk's tree.

 include/linux/sched_clock.h |  1 -
 kernel/time/sched_clock.c   | 13 -------------
 2 files changed, 14 deletions(-)

diff --git a/include/linux/sched_clock.h b/include/linux/sched_clock.h
index cddf0c2940b6..efa931c5cef1 100644
--- a/include/linux/sched_clock.h
+++ b/include/linux/sched_clock.h
@@ -14,7 +14,6 @@ extern void sched_clock_postinit(void);
 static inline void sched_clock_postinit(void) { }
 #endif
 
-extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
 extern void sched_clock_register(u64 (*read)(void), int bits,
 				 unsigned long rate);
 
diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index 4d23dc4d8139..445106d2c729 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -49,13 +49,6 @@ static u64 notrace jiffy_sched_clock_read(void)
 	return (u64)(jiffies - INITIAL_JIFFIES);
 }
 
-static u32 __read_mostly (*read_sched_clock_32)(void);
-
-static u64 notrace read_sched_clock_32_wrapper(void)
-{
-	return read_sched_clock_32();
-}
-
 static u64 __read_mostly (*read_sched_clock)(void) = jiffy_sched_clock_read;
 
 static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift)
@@ -176,12 +169,6 @@ void __init sched_clock_register(u64 (*read)(void), int bits,
 	pr_debug("Registered %pF as sched_clock source\n", read);
 }
 
-void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
-{
-	read_sched_clock_32 = read;
-	sched_clock_register(read_sched_clock_32_wrapper, bits, rate);
-}
-
 void __init sched_clock_postinit(void)
 {
 	/*
-- 
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