s390: Support CONFIG_TRACE_MMIO_ACCESS

Enable the functionality of commits
d593d64f043a ("lib: Add register read/write tracing support")
210031971cdd ("asm-generic/io: Add logging support for MMIO accessors").

It only depends on explicit function calls for the tracing.

Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 25a773e6596ea4cf6ffc3bf28479c581ff86f816..ac162e62da86c9f9273a008b8eea254d727a67a0 100644 (file)
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -102,6 +102,7 @@ config S390
        select ARCH_HAS_UBSAN
        select ARCH_HAS_VDSO_TIME_DATA
        select ARCH_HAVE_NMI_SAFE_CMPXCHG
+       select ARCH_HAVE_TRACE_MMIO_ACCESS
        select ARCH_INLINE_READ_LOCK
        select ARCH_INLINE_READ_LOCK_BH
        select ARCH_INLINE_READ_LOCK_IRQ