linux-kernel - Re: [PATCH] pci: fix unterminated pci_device

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Message-ID: <b6fcc0a0709122334qa31fffby4afbf857c92efb89@mail.gmail.com>
Date:	Thu, 13 Sep 2007 10:34:02 +0400
From:	"Alexey Dobriyan" <adobriyan@...il.com>
To:	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	"Greg KH" <greg@...ah.com>, "Jeff Garzik" <jeff@...zik.org>,
	"Kees Cook" <kees@...ntu.com>, linux-kernel@...r.kernel.org,
	"Ben Collins" <bcollins@...ntu.com>,
	"Michael Wu" <flamingice@...rmilk.net>
Subject: Re: [PATCH] pci: fix unterminated pci_device_id lists

[non-terminated PCI ids arrays]

Here is compile-time hack (yep, warped and whitespace damaged :))
It's better than modpost-time hack. because it triggers earlier.
It's worse than modpost-time hack, because of tree-wide changes.

diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index f4e4298..b895b5f 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -237,7 +237,7 @@ static const struct {
 };


-static struct pci_device_id rtl8139_pci_tbl[] = {
+PCI_MODULE_DEVICE_TABLE_BEGIN(rtl8139_pci_tbl)
 	{0x10ec, 0x8139, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
 	{0x10ec, 0x8138, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
 	{0x1113, 0x1211, PCI_ANY_ID, PCI_ANY_ID, 0, 0, RTL8139 },
@@ -273,10 +273,7 @@ static struct pci_device_id rtl8139_pci_tbl[] = {
 	{PCI_ANY_ID, 0x8139, 0x10ec, 0x8139, 0, 0, RTL8139 },
 	{PCI_ANY_ID, 0x8139, 0x1186, 0x1300, 0, 0, RTL8139 },
 	{PCI_ANY_ID, 0x8139, 0x13d1, 0xab06, 0, 0, RTL8139 },
-
-	{0,}
-};
-MODULE_DEVICE_TABLE (pci, rtl8139_pci_tbl);
+PCI_MODULE_DEVICE_TABLE_END

 static struct {
 	const char str[ETH_GSTRING_LEN];
diff --git a/include/linux/module.h b/include/linux/module.h
index b6a646c..aef3cd9 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -137,6 +137,13 @@ extern struct module __this_module;
 #define MODULE_DEVICE_TABLE(type,name)		\
   MODULE_GENERIC_TABLE(type##_device,name)

+#define PCI_MODULE_DEVICE_TABLE_BEGIN(name)	\
+	MODULE_DEVICE_TABLE(pci, name);		\
+	static struct pci_device_id name[] = {
+
+#define PCI_MODULE_DEVICE_TABLE_END		\
+	{}};
+
 /* Version of form [<epoch>:]<version>[-<extra-version>].
    Or for CVS/RCS ID version, everything but the number is stripped.
   <epoch>: A (small) unsigned integer which allows you to start versions
-
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