linux-kernel - DECLARE_PCI_UNMAP

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Message-Id: <200805250748.38163.mitov@issp.bas.bg>
Date:	Sun, 25 May 2008 07:48:38 +0300
From:	Marin Mitov <mitov@...p.bas.bg>
To:	linux-kernel@...r.kernel.org
Cc:	netdev@...r.kernel.org
Subject: DECLARE_PCI_UNMAP_{ADDR,LEN} question

Hi all,

In Documentation/DMA-mapping.txt is written:

NOTE: DO NOT put a semicolon at the end of the 
DECLARE_PCI_UNMAP_{ADDR,LEN}() macro.

While the output of 
grep DECLARE_PCI_UNMAP_  drivers/net/* 
contains lines with and without semicolon:
drivers/net/acenic.h:   DECLARE_PCI_UNMAP_ADDR(mapping)
drivers/net/acenic.h:   DECLARE_PCI_UNMAP_ADDR(mapping)
drivers/net/acenic.h:   DECLARE_PCI_UNMAP_LEN(maplen)
drivers/net/bnx2.h:     DECLARE_PCI_UNMAP_ADDR(mapping)
drivers/net/bnx2.h:     DECLARE_PCI_UNMAP_ADDR(mapping)
drivers/net/bnx2x.h:    DECLARE_PCI_UNMAP_ADDR(mapping)
drivers/net/qla3xxx.h:   DECLARE_PCI_UNMAP_ADDR(mapaddr);
drivers/net/qla3xxx.h:   DECLARE_PCI_UNMAP_LEN(maplen);
drivers/net/qla3xxx.h:   DECLARE_PCI_UNMAP_ADDR(mapaddr);
drivers/net/qla3xxx.h:   DECLARE_PCI_UNMAP_LEN(maplen);
drivers/net/skge.h:     DECLARE_PCI_UNMAP_ADDR(mapaddr);
drivers/net/skge.h:     DECLARE_PCI_UNMAP_LEN(maplen);
drivers/net/sky2.h:     DECLARE_PCI_UNMAP_ADDR(mapaddr);
drivers/net/sky2.h:     DECLARE_PCI_UNMAP_ADDR(maplen);
drivers/net/sky2.h:     DECLARE_PCI_UNMAP_ADDR(data_size);
drivers/net/tg3.h:      DECLARE_PCI_UNMAP_ADDR(mapping)
drivers/net/tg3.h:      DECLARE_PCI_UNMAP_ADDR(mapping)

My question is: 
Why one should NOT put semicolon at the end of the macro?
If it is _really_ important, should it be removed/patched?

Thank you for your answers.

Regards

Marin Mitov

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