[PATCH 1/4] um: Fix warning at kernel/time/clockevents.c:466

[PATCH 1/4] um: Fix warning at kernel/time/clockevents.c:466

[Richard Weinberger]

Since fbfa9260085b ("clockevents: Warn if cpu_all_mask is used as
cpumask") the WARN_ON() make sure that nobody is using cpu_all_mask.
For UML this never was a real problem since it is UP only.
Switch to cpu_possible_mask to no longer violate the rules of the clock
framework.

Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/kernel/time.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index 052de4c8acb2..0c572a48158e 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -56,7 +56,7 @@ static int itimer_one_shot(struct clock_event_device *evt)
 static struct clock_event_device timer_clockevent = {
 	.name			= "posix-timer",
 	.rating			= 250,
-	.cpumask		= cpu_all_mask,
+	.cpumask		= cpu_possible_mask,
 	.features		= CLOCK_EVT_FEAT_PERIODIC |
 				  CLOCK_EVT_FEAT_ONESHOT,
 	.set_state_shutdown	= itimer_shutdown,
-- 
2.19.1


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[PATCH 2/4] um: Add HAVE_DEBUG_BUGVERBOSE.

[Richard Weinberger]

From: Hernán Gonzalez <hernan@vanguardiasur.com.ar>

This option restores the DEBUG_BUGVERBOSE functionality as it was
previous to commit 9a93848fe787 ("x86/debug: Implement __WARN() using
UD0").

Signed-off-by: Hernán Gonzalez <hernan@vanguardiasur.com.ar>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/um/Kconfig b/arch/um/Kconfig
index 6b9938919f0b..c37c7dfee8be 100644
--- a/arch/um/Kconfig
+++ b/arch/um/Kconfig
@@ -12,6 +12,7 @@ config UML
 	select HAVE_UID16
 	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_DEBUG_KMEMLEAK
+	select HAVE_DEBUG_BUGVERBOSE
 	select GENERIC_IRQ_SHOW
 	select GENERIC_CPU_DEVICES
 	select GENERIC_CLOCKEVENTS
-- 
2.19.1


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[PATCH 3/4] um: Include sys/uio.h to have writev()

[Richard Weinberger]

sys/uio.h gives us writev(), otherwise the build might fail on
some systems.

Fixes: 49da7e64f33e ("High Performance UML Vector Network Driver")
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/drivers/vector_user.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/um/drivers/vector_user.c b/arch/um/drivers/vector_user.c
index 3d8cdbdb4e66..07dc8904510b 100644
--- a/arch/um/drivers/vector_user.c
+++ b/arch/um/drivers/vector_user.c
@@ -30,6 +30,7 @@
 #include <stdlib.h>
 #include <os.h>
 #include <um_malloc.h>
+#include <sys/uio.h>
 #include "vector_user.h"
 
 #define ID_GRE 0
-- 
2.19.1


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[PATCH 4/4] um: Make GCOV depend on !KCOV

[Richard Weinberger]

Both do more or less the same thing and are mutually exclusive.
If both are enabled the build will fail.
Sooner or later we can kill UML's GCOV.

Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/Kconfig.debug | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug
index 2014597605ea..85726eeec345 100644
--- a/arch/um/Kconfig.debug
+++ b/arch/um/Kconfig.debug
@@ -16,6 +16,7 @@ config GPROF
 config GCOV
 	bool "Enable gcov support"
 	depends on DEBUG_INFO
+	depends on !KCOV
 	help
 	  This option allows developers to retrieve coverage data from a UML
 	  session.
-- 
2.19.1


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