linux-kernel - [PATCH] powerpc: Remove leftover cputime_to

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Message-Id: <1487690321-21553-1-git-send-email-fweisbec@gmail.com>
Date:   Tue, 21 Feb 2017 16:18:41 +0100
From:   Frederic Weisbecker <fweisbec@...il.com>
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Frederic Weisbecker <fweisbec@...il.com>,
        Abdul Haleem <abdhalee@...ux.vnet.ibm.com>,
        Oliver O'Halloran <oohall@...il.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH] powerpc: Remove leftover cputime_to_nsecs call causing build error

This type conversion is a leftover that got ignored during the kcpustat
conversion to nanosecs, resulting in build breakage with config having
CONFIG_NO_HZ_FULL=y.

	arch/powerpc/kernel/time.c: In function 'running_clock':
	arch/powerpc/kernel/time.c:712:2: error: implicit declaration of function 'cputime_to_nsecs' [-Werror=implicit-function-declaration]
	  return local_clock() - cputime_to_nsecs(kcpustat_this_cpu->cpustat[CPUTIME_STEAL]);

All we need is to remove it.

Reported-by: Abdul Haleem <abdhalee@...ux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@...erman.id.au>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Oliver O'Halloran <oohall@...il.com>
Cc: linuxppc-dev@...ts.ozlabs.org
Signed-off-by: Frederic Weisbecker <fweisbec@...il.com>
---
 arch/powerpc/kernel/time.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 14e4855..bc84a8d 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -709,7 +709,7 @@ unsigned long long running_clock(void)
 	 * time and on a host which doesn't do any virtualisation TB *should* equal
 	 * VTB so it makes no difference anyway.
 	 */
-	return local_clock() - cputime_to_nsecs(kcpustat_this_cpu->cpustat[CPUTIME_STEAL]);
+	return local_clock() - kcpustat_this_cpu->cpustat[CPUTIME_STEAL];
 }
 #endif
 
-- 
2.7.4