linux-kernel - Re: [PATCH 1/1] net: qlcnic: avoid superfluous assignement

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Message-Id: <20160731.203247.112564519224260656.davem@davemloft.net>
Date:	Sun, 31 Jul 2016 20:32:47 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	zyjzyj2000@...il.com
Cc:	xypron.glpk@....de, Dept-GELinuxNICDev@...gic.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] net: qlcnic: avoid superfluous assignement

From: zhuyj <zyjzyj2000@...il.com>
Date: Mon, 1 Aug 2016 10:57:20 +0800

> Sorry.
> An inline function will be inserted into the calling function. Why
> "Assigning NULL to parmeter dcb has no effect outside of the
> inlined function." ?

It doesn't do anything to "dcb" in the calling function, that's not
how inlining works.

The inlined function behaves exactly as if it were called as a
non-inline function from the perspective of side effects visible to
the program.