linux-kernel - checkpatch complaint

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Date:	Wed, 8 Feb 2012 21:51:46 +0100
From:	"Arend van Spriel" <arend@...adcom.com>
To:	"Andy Whitcroft" <apw@...onical.com>
cc:	"Dan Carpenter" <dan.carpenter@...cle.com>,
	"Joe Perches" <joe@...ches.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: checkpatch complaint

checkpatch complains on code below and I must overlook something or
checkpatch gives a false negative/positive/whatever:

#define IFPTR(usb, idx)         ((usb)->actconfig->interface[(idx)])
#define IFALTS(usb, idx)        (IFPTR((usb), (idx))->altsetting[0])
#define IFDESC(usb, idx)        IFALTS((usb), (idx)).desc
#define IFEPDESC(usb, idx, ep)  \
	(IFALTS((usb), (idx)).endpoint[(ep)]).desc

checkpatch errors:
ERROR: Macros with complex values should be enclosed in parenthesis
#169: FILE: drivers/net/wireless/brcm80211/brcmfmac/usb.c:58:
+#define IFDESC(usb, idx)        (IFALTS((usb), (idx))).desc

ERROR: Macros with complex values should be enclosed in parenthesis
#170: FILE: drivers/net/wireless/brcm80211/brcmfmac/usb.c:59:
+#define IFEPDESC(usb, idx, ep)  ((IFALTS((usb),
(idx))).endpoint[(ep)]).desc

Any ideas? I tried extra parenthesis around IFALTS but that does not
resolve it.

Gr. AvS

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