From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lin Ming Subject: Re: [PATCH -next] drivers/net: Makefile, fix netconsole link order Date: Sat, 10 Sep 2011 10:43:32 +0800 Message-ID: <1315622612.2425.16.camel@hp6530s> References: <1315298129.16061.24.camel@snb> <20110909170027.c4bf6151.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: 7bit Cc: "David S. Miller" , lkml , "netdev@vger.kernel.org" , "Kirsher, Jeffrey T" To: Andrew Morton Return-path: In-Reply-To: <20110909170027.c4bf6151.akpm@linux-foundation.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Sat, 2011-09-10 at 08:00 +0800, Andrew Morton wrote: > On Tue, 06 Sep 2011 16:35:29 +0800 > Lin Ming wrote: > > > Commit 88491d8(drivers/net: Kconfig & Makefile cleanup) causes a > > regression that netconsole does not work if netconsole and network > > device driver are build into kernel, because netconsole is linked before > > network device driver. > > > > Fixes it by moving netconsole.o after network device driver. > > > > Signed-off-by: Lin Ming > > --- > > drivers/net/Makefile | 7 ++++++- > > 1 files changed, 6 insertions(+), 1 deletions(-) > > > > diff --git a/drivers/net/Makefile b/drivers/net/Makefile > > index fa877cd..ec15311 100644 > > --- a/drivers/net/Makefile > > +++ b/drivers/net/Makefile > > @@ -14,7 +14,6 @@ obj-$(CONFIG_MACVTAP) += macvtap.o > > obj-$(CONFIG_MII) += mii.o > > obj-$(CONFIG_MDIO) += mdio.o > > obj-$(CONFIG_NET) += Space.o loopback.o > > -obj-$(CONFIG_NETCONSOLE) += netconsole.o > > obj-$(CONFIG_PHYLIB) += phy/ > > obj-$(CONFIG_RIONET) += rionet.o > > obj-$(CONFIG_TUN) += tun.o > > @@ -66,3 +65,9 @@ obj-$(CONFIG_USB_USBNET) += usb/ > > obj-$(CONFIG_USB_ZD1201) += usb/ > > obj-$(CONFIG_USB_IPHETH) += usb/ > > obj-$(CONFIG_USB_CDC_PHONET) += usb/ > > + > > +# > > +# If netconsole and network device driver are build-in, > > +# netconsole must be linked after network device driver > > +# > > +obj-$(CONFIG_NETCONSOLE) += netconsole.o > > It would be preferable to fix this with initcall ordering. Perhaps by > switching init_netconsole() to subsys_initcall. subsys_initcall is defined as __define_initcall("4",fn,4). In !MODULE case, device driver module_int() is defined as __define_initcall("6",fn,6) If we use subsys_initcall for init_netconsole, it will still be called before network device driver is initialized. How about late_initcall? (Not tested yet) >>From 11f4f035e96ff430192d0a75552dd715acb5f3b8 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Sat, 10 Sep 2011 10:36:10 +0800 Subject: [PATCH] drivers/net: Makefile, fix netconsole link order Commit 88491d8(drivers/net: Kconfig & Makefile cleanup) causes a regression that netconsole does not work if netconsole and network device driver are build into kernel, because netconsole is linked before network device driver. Fixes it by switching init_netconsole() to late_initcall if it's build-in. Signed-off-by: Lin Ming --- drivers/net/netconsole.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c index dfc8272..914be29 100644 --- a/drivers/net/netconsole.c +++ b/drivers/net/netconsole.c @@ -799,5 +799,9 @@ static void __exit cleanup_netconsole(void) } } +#ifdef MODULE module_init(init_netconsole); module_exit(cleanup_netconsole); +#else +late_initcall(init_netconsole); +#endif /* !MODULE */ -- 1.7.2.3