arch: xtensa: Remove CONFIG_OPROFILE support

The "oprofile" user-space tools don't use the kernel OPROFILE support
any more, and haven't in a long time. User-space has been converted to
the perf interfaces.

Remove the old oprofile's architecture specific support.

Suggested-by: Christoph Hellwig <[email protected]>
Suggested-by: Linus Torvalds <[email protected]>
Signed-off-by: Viresh Kumar <[email protected]>
Acked-by: Robert Richter <[email protected]>
Acked-by: Max Filippov <[email protected]>
Acked-by: William Cohen <[email protected]>
Acked-by: Al Viro <[email protected]>
Acked-by: Thomas Gleixner <[email protected]>

Author: vireshk

arch/xtensa/Kconfig

@@ -32,7 +32,6 @@ config XTENSA
 	select HAVE_FUTEX_CMPXCHG if !MMU
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS
 	select HAVE_IRQ_TIME_ACCOUNTING
-	select HAVE_OPROFILE
 	select HAVE_PCI
 	select HAVE_PERF_EVENTS
 	select HAVE_STACKPROTECTOR

arch/xtensa/Makefile

@@ -83,7 +83,6 @@ core-y		+= $(buildvar) $(buildplf)
 core-y 		+= arch/xtensa/boot/dts/
 
 libs-y		+= arch/xtensa/lib/ $(LIBGCC)
-drivers-$(CONFIG_OPROFILE)	+= arch/xtensa/oprofile/
 
 boot		:= arch/xtensa/boot
 

arch/xtensa/configs/audio_kc705_defconfig

@@ -18,7 +18,6 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_EXPERT=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_XTENSA_VARIANT_CUSTOM=y

arch/xtensa/configs/generic_kc705_defconfig

@@ -18,7 +18,6 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_EXPERT=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_XTENSA_VARIANT_DC233C=y

arch/xtensa/configs/smp_lx200_defconfig

@@ -18,7 +18,6 @@ CONFIG_BLK_DEV_INITRD=y
 CONFIG_EXPERT=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_XTENSA_VARIANT_CUSTOM=y

arch/xtensa/configs/xip_kc705_defconfig

@@ -31,7 +31,6 @@ CONFIG_CMDLINE="earlycon=uart8250,mmio32native,0xfd050020,115200n8 console=ttyS0
 CONFIG_USE_OF=y
 CONFIG_BUILTIN_DTB_SOURCE="kc705"
 # CONFIG_PARSE_BOOTPARAM is not set
-CONFIG_OPROFILE=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 # CONFIG_COMPACTION is not set
 CONFIG_NET=y

arch/xtensa/kernel/stacktrace.c

@@ -16,7 +16,7 @@
 #include <asm/traps.h>
 #include <linux/uaccess.h>
 
-#if IS_ENABLED(CONFIG_OPROFILE) || IS_ENABLED(CONFIG_PERF_EVENTS)
+#if IS_ENABLED(CONFIG_PERF_EVENTS)
 
 /* Address of common_exception_return, used to check the
  * transition from kernel to user space.