[Xen-devel] [PATCH v8 08/28] build: convert HAS_NS16550 use to Kconfig

[Doug Goldstein <cardoe@xxxxxxxxxx>]

Use the Kconfig generated CONFIG_HAS_NS16550 defines in the code base.

CC: Keir Fraser <keir@xxxxxxx>
CC: Jan Beulich <jbeulich@xxxxxxxx>
CC: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Signed-off-by: Doug Goldstein <cardoe@xxxxxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 config/arm32.mk           | 1 -
 config/arm64.mk           | 1 -
 xen/arch/x86/Kconfig      | 1 +
 xen/arch/x86/Rules.mk     | 1 -
 xen/drivers/Kconfig       | 2 ++
 xen/drivers/char/Kconfig  | 6 ++++++
 xen/drivers/char/Makefile | 2 +-
 7 files changed, 10 insertions(+), 4 deletions(-)
 create mode 100644 xen/drivers/char/Kconfig

diff --git a/config/arm32.mk b/config/arm32.mk
index cd97e42..f963338 100644
--- a/config/arm32.mk
+++ b/config/arm32.mk
@@ -13,7 +13,6 @@ HAS_PL011 := y
 HAS_EXYNOS4210 := y
 HAS_OMAP := y
 HAS_SCIF := y
-HAS_NS16550 := y
 HAS_MEM_ACCESS := y
 
 # Use only if calling $(LD) directly.
diff --git a/config/arm64.mk b/config/arm64.mk
index c5deb4e..f35f6bf 100644
--- a/config/arm64.mk
+++ b/config/arm64.mk
@@ -8,7 +8,6 @@ CFLAGS += #-marm -march= -mcpu= etc
 
 HAS_PL011 := y
 HAS_CADENCE_UART := y
-HAS_NS16550 := y
 HAS_MEM_ACCESS := y
 HAS_GICV3 := y
 
diff --git a/xen/arch/x86/Kconfig b/xen/arch/x86/Kconfig
index 63f2b21..e68e35b 100644
--- a/xen/arch/x86/Kconfig
+++ b/xen/arch/x86/Kconfig
@@ -3,6 +3,7 @@ config X86_64
 
 config X86
        def_bool y
+       select HAS_NS16550
        select HAS_PASSTHROUGH
        select HAS_PCI
 
diff --git a/xen/arch/x86/Rules.mk b/xen/arch/x86/Rules.mk
index 8743509..17d2869 100644
--- a/xen/arch/x86/Rules.mk
+++ b/xen/arch/x86/Rules.mk
@@ -7,7 +7,6 @@ HAS_NUMA := y
 HAS_VGA  := y
 HAS_VIDEO  := y
 HAS_CPUFREQ := y
-HAS_NS16550 := y
 HAS_EHCI := y
 HAS_KEXEC := y
 HAS_GDBSX := y
diff --git a/xen/drivers/Kconfig b/xen/drivers/Kconfig
index 5362e41..fe6fcca 100644
--- a/xen/drivers/Kconfig
+++ b/xen/drivers/Kconfig
@@ -1,5 +1,7 @@
 menu "Device Drivers"
 
+source "drivers/char/Kconfig"
+
 source "drivers/passthrough/Kconfig"
 
 source "drivers/pci/Kconfig"
diff --git a/xen/drivers/char/Kconfig b/xen/drivers/char/Kconfig
new file mode 100644
index 0000000..eb8c3b5
--- /dev/null
+++ b/xen/drivers/char/Kconfig
@@ -0,0 +1,6 @@
+#  16550-series UART support
+config HAS_NS16550
+       bool
+       default y
+       help
+         This selects the 16550-series UART support. For most systems, say Y.
diff --git a/xen/drivers/char/Makefile b/xen/drivers/char/Makefile
index 47fc3f9..5e9d271 100644
--- a/xen/drivers/char/Makefile
+++ b/xen/drivers/char/Makefile
@@ -1,5 +1,5 @@
 obj-y += console.o
-obj-$(HAS_NS16550) += ns16550.o
+obj-$(CONFIG_HAS_NS16550) += ns16550.o
 obj-$(HAS_CADENCE_UART) += cadence-uart.o
 obj-$(HAS_PL011) += pl011.o
 obj-$(HAS_EXYNOS4210) += exynos4210-uart.o
-- 
2.4.10


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