From ae141830b118c3fb5b7eab6fa7c8ab7b7224b0a4 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Fri, 19 Aug 2016 22:39:02 +0200 Subject: parisc: Fix automatic selection of cr16 clocksource Commit 54b66800907 (parisc: Add native high-resolution sched_clock() implementation) added support to use the CPU-internal cr16 counters as reliable clocksource with the help of HAVE_UNSTABLE_SCHED_CLOCK. Sadly the commit missed to remove the hack which prevented cr16 to become the default clocksource even on SMP systems. Signed-off-by: Helge Deller Cc: stable@vger.kernel.org # 4.7+ --- arch/parisc/kernel/processor.c | 8 -------- arch/parisc/kernel/time.c | 12 ------------ 2 files changed, 20 deletions(-) diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c index 5adc339eb7c8..0c2a94a0f751 100644 --- a/arch/parisc/kernel/processor.c +++ b/arch/parisc/kernel/processor.c @@ -51,8 +51,6 @@ EXPORT_SYMBOL(_parisc_requires_coherency); DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data); -extern int update_cr16_clocksource(void); /* from time.c */ - /* ** PARISC CPU driver - claim "device" and initialize CPU data structures. ** @@ -228,12 +226,6 @@ static int processor_probe(struct parisc_device *dev) } #endif - /* If we've registered more than one cpu, - * we'll use the jiffies clocksource since cr16 - * is not synchronized between CPUs. - */ - update_cr16_clocksource(); - return 0; } diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c index 505cf1ac5af2..4b0b963d52a7 100644 --- a/arch/parisc/kernel/time.c +++ b/arch/parisc/kernel/time.c @@ -221,18 +221,6 @@ static struct clocksource clocksource_cr16 = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -int update_cr16_clocksource(void) -{ - /* since the cr16 cycle counters are not synchronized across CPUs, - we'll check if we should switch to a safe clocksource: */ - if (clocksource_cr16.rating != 0 && num_online_cpus() > 1) { - clocksource_change_rating(&clocksource_cr16, 0); - return 1; - } - - return 0; -} - void __init start_cpu_itimer(void) { unsigned int cpu = smp_processor_id(); -- cgit v1.2.3-55-g7522 From 3eb53b20d7bd1374598cfb1feaa081fcac0e76cd Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Sat, 20 Aug 2016 11:51:38 +0200 Subject: parisc: Fix order of EREFUSED define in errno.h When building gccgo in userspace, errno.h gets parsed and the go include file sysinfo.go is generated. Since EREFUSED is defined to the same value as ECONNREFUSED, and ECONNREFUSED is defined later on in errno.h, this leads to go complaining that EREFUSED isn't defined yet. Fix this trivial problem by moving the define of EREFUSED down after ECONNREFUSED in errno.h (and clean up the indenting while touching this line). Signed-off-by: Helge Deller Cc: stable@vger.kernel.org --- arch/parisc/include/uapi/asm/errno.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/parisc/include/uapi/asm/errno.h b/arch/parisc/include/uapi/asm/errno.h index c0ae62520d15..274d5bc6ecce 100644 --- a/arch/parisc/include/uapi/asm/errno.h +++ b/arch/parisc/include/uapi/asm/errno.h @@ -97,10 +97,10 @@ #define ENOTCONN 235 /* Transport endpoint is not connected */ #define ESHUTDOWN 236 /* Cannot send after transport endpoint shutdown */ #define ETOOMANYREFS 237 /* Too many references: cannot splice */ -#define EREFUSED ECONNREFUSED /* for HP's NFS apparently */ #define ETIMEDOUT 238 /* Connection timed out */ #define ECONNREFUSED 239 /* Connection refused */ -#define EREMOTERELEASE 240 /* Remote peer released connection */ +#define EREFUSED ECONNREFUSED /* for HP's NFS apparently */ +#define EREMOTERELEASE 240 /* Remote peer released connection */ #define EHOSTDOWN 241 /* Host is down */ #define EHOSTUNREACH 242 /* No route to host */ -- cgit v1.2.3-55-g7522