linux-kernel - [PATCH] staging: unisys: use msecs_to

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Date:	Sat, 31 Jan 2015 12:02:08 +0100
From:	Nicholas Mc Guire <der.herr@...r.at>
To:	Benjamin Romer <benjamin.romer@...sys.com>
Cc:	David Kershner <david.kershner@...sys.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Ken Cox <jkc@...hat.com>, sparmaintainer@...sys.com,
	devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
	Nicholas Mc Guire <der.herr@...r.at>
Subject: [PATCH] staging: unisys: use msecs_to_jiffies for conversions

This is only an API consolidation to make things more readable.
Instances of  var * HZ / 1000  are replaced by  msecs_to_jiffies(var).

Signed-off-by: Nicholas Mc Guire <der.herr@...r.at>
---

Converting milliseconds to jiffies by "val * HZ / 1000" is technically
ok but msecs_to_jiffies(val) is the cleaner solution and handles all
corner cases correctly. This is a minor API cleanup only.

This patch was only compile tested with x86_64_defconfig + CONFIG_STAGING=y
CONFIG_UNISYSSPAR=y, CONFIG_UNISYS_VISORUTIL=m,
CONFIG_UNISYS_VISORCHANNEL=m, CONFIG_UNISYS_VISORCHIPSET=m 

Patch is against 3.19.0-rc6 -next-20150129

 drivers/staging/unisys/visorchipset/visorchipset_main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/unisys/visorchipset/visorchipset_main.c b/drivers/staging/unisys/visorchipset/visorchipset_main.c
index 82e259d..f606ee9 100644
--- a/drivers/staging/unisys/visorchipset/visorchipset_main.c
+++ b/drivers/staging/unisys/visorchipset/visorchipset_main.c
@@ -1594,7 +1594,7 @@ parahotplug_next_id(void)
 static unsigned long
 parahotplug_next_expiration(void)
 {
-	return jiffies + PARAHOTPLUG_TIMEOUT_MS * HZ / 1000;
+	return jiffies + msecs_to_jiffies(PARAHOTPLUG_TIMEOUT_MS);
 }
 
 /*
-- 
1.7.10.4

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