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2008-07-13[NET] smc91x: remove "irq_flags" from "struct smc91x_platdata"Eric Miao1-1/+0
IRQ trigger type can be specified in the IRQ resource definition by IORESOURCE_IRQ_*, we need only one way to specify this. This also fixes the following small issue: To allow dynamic support for multiple platforms, when those relevant macros are not defined for one specific platform, the default case will be: - SMC_DYNAMIC_BUS_CONFIG defined - and SMC_IRQ_FLAGS = IRQF_TRIGGER_RISING While if "irq_flags" is missing when defining the smc91x_platdata, usually as follows: static struct smc91x_platdata xxxx_smc91x_data = { .flags = SMC91X_USE_XXBIT, }; The lp->cfg.irq_flags will always be overriden by the above structure (due to a memcpy), thus rendering lp->cfg.irq_flags to be "0" always. (regardless of the default SMC_IRQ_FLAGS or IORESOURCE_IRQ_* flags) Fixes this by forcing to use IORESOURCE_IRQ_* flags if present, and make the only user of smc91x_platdata.irq_flags (renesas/migor) to use IORESOURCE_IRQ_*. Signed-off-by: Eric Miao <eric.miao@marvell.com> Acked-by: Nicolas Pitre <nico@cam.org> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-13Merge branch 'pxa-devel' into pxaRussell King6-5/+31
2008-07-13Merge branch 'eseries' into pxaRussell King3-0/+78
Conflicts: arch/arm/mach-pxa/Makefile
2008-07-13Merge branch 'pxa-tosa' into pxaRussell King8-33/+183
Conflicts: arch/arm/mach-pxa/Kconfig arch/arm/mach-pxa/tosa.c arch/arm/mach-pxa/spitz.c
2008-07-13Merge branches 'pxa-ian' and 'pxa-xm270' into pxaRussell King2-50/+12
Conflicts: MAINTAINERS
2008-07-10PXA UDC - allow use of inverted GPIO for pullupIan Molton1-0/+1
Signed-off-by: Ian Molton <spyro@f2s.com>
2008-07-10E-series GPIO / IRQ definitions.Ian Molton2-0/+77
2008-07-10Merge branches 'pxa-ezx', 'pxa-magician' and 'pxa-palm' into pxaRussell King309-604/+1138
2008-07-10[ARM] 5113/1: PXA SSP: Additional register definitions for PXA3xx SSPMark Brown1-1/+15
Also add some white space for a little clarity. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10[ARM] 5163/1: pxa27x_udc: Allow choosing the bits in UP2OCR_SEOSStefan Schmidt1-1/+1
Allow choosing the bits in UP2OCR_SEOS. Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10[ARM] 5164/1: pxafb: Support for RGB666, RGBT666, RGB888 and RGBT888Stefan Schmidt1-1/+2
Add the .depth field to pxafb_mode_info and use it to set pixel data format as 18(RGB666), 19(RGBT666), 24(RGB888) or 25(RGBT888) Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10[ARM] 5165/1: pxafb: More LCCR3 depth definesStefan Schmidt1-0/+6
Add missing depth definitions to LCCR3. Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10[ARM] 5153/1: Add support for PalmTX handheld computerMarek Vašut1-0/+106
PalmTX is PXA27x based device with wifi, bluetooth, touchscreen, sdio slot, irda, keypad, nand flash, pxa framebuffer, serial and usb gadget interface. Supported by this patch is pxafb, touchscreen, irda, keypad and sdio slot. Signed-off-by: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10Fix serial broken-ness on PXA250Ian Molton1-0/+12
PXA255 and 26x are the only PXA CPUs with HWUART. This patch prevents bogus initialisation on other models. Signed-off-by: Ian Molton <spyro@f2s.com>
2008-07-10[ARM] pxa: add simple gpio debug LEDs support for zyloniteEric Miao1-0/+2
Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10[ARM] pxa: add GPIO expander (PCA9539) support for zyloniteEric Miao1-0/+2
And also reserve 32 IRQs for the two GPIO expanders. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10[ARM] pxa: add pxa3xx NAND device and clock sourcesEric Miao1-0/+2
A pxa3xx_set_nand_info() is also introduced to set the PXA3xx NAND driver specific platform_data structure pointer. Signed-off-by: Eric Miao <eric.miao@marvell.com> Cc: Sergey Podstavin <spodstavin@ru.mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10[ARM] pxa: add pxa2xx_mfp_set_lpm() to facilitate low power state changeEric Miao1-0/+1
Some boards want to change low power state of pins on-the-fly, this function helps to facilitate that operation instead of switching back-n-forth between two configurations with pxa2xx_mfp_config(). Signed-off-by: Eric Miao <eric.miao@marvell.com> Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10[ARM] pxa: allow display of uncompress message through STUARTEric Miao1-4/+9
Some boards use UART other than FFUART for the console, E.g. Marvell PXA3xx Form Factor Platform (aka Littleton) uses STUART. This patch modifies the uncompress.h so that display of the uncompress message is routed to the STUART. Signed-off-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10Merge branch 'machtypes' into pxa-palmRussell King308-604/+1032
2008-07-10[ARM] 5106/1: CM-X270: remove unneeded cm-x270.hMike Rapoport1-50/+0
The include/asm-arm/arch-pxa/cm-x270.h is not used anymore. Remove it. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10[ARM] 5088/3: pxa2xx: add pxa2xx_set_spi_info to register pxa2xx-spi ↵Guennadi Liakhovetski1-0/+2
platform devices Add a function to dynamically allocate and register pxa2xx-spi platform devices, to be used by PXA2xx and PXA3xx based systems. Switch pcm027 and lubbock to use it. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-10[ARM] 5085/2: PXA: Move AC97 over to the new central device declaration modelMark Brown1-0/+2
As well as moving all the device declarations to a single one in devices.c this causes all platforms to register the I/O and interrupt resources for the AC97 controller. Cc: eric miao <eric.miao@marvell.com> Cc: Mike Rapoport <mike@compulab.co.il> Cc: Lennert Buytenhek <buytenh@wantstofly.org> Cc: Jürgen Schindele <linux@schindele.name> Cc: Juergen Beisert <jbe@pengutronix.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-09[ARM] 5145/1: PXA2xx: provide api to control IrDA pins stateDmitry Baryshkov1-0/+4
Provide a set of functions to control state of pins dedicated to IrDA. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-09[ARM] pxa: remove pxa_set_cken()Russell King1-9/+0
pxa_set_cken() is now unused, remove it. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-09Merge branches 'pxa-misc', 'pxa-pwm' and 'pxa-multi' into pxaRussell King8-569/+633
2008-07-07[ARM] 5079/1: Warn people when using pxa2xx-gpio.hStefan Schmidt1-0/+2
Warn people when using pxa2xx-gpio.h as it is only here for backwards compatibility. The new mfp-pxa2[57]x.h and the relevant API should be used instead. Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-07[ARM] 5150/1: Tosa: support built-in bluetooth power-upDmitry Baryshkov2-4/+25
The driver is pretty much generic and will be later shared with a few other devices, like hx4700 ipaq. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-07[ARM] 5128/1: tc6393xb: tmio-nand supportDmitry Baryshkov2-0/+19
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-07[ARM] 5127/1: Core MFD supportDmitry Baryshkov1-0/+55
This patch provides a common subdevice registration system for MFD type chips, using platfrom device. Signed-off-by: Ian Molton <spyro@f2s.com> Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-07[ARM] 5097/1: Tosa: support TC6393XB deviceDmitry Baryshkov2-14/+31
Add definitions for Toshiba TC6393XB companion chip and register the tc6393xb device. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-07[ARM] 5096/2: Support Toshiba TC6393XB Mobile I/O Controller.Dmitry Baryshkov1-0/+47
Add support for Toshiba TC6393XB companion chip. Currently only GPIO and part of IRQ features of the device are supported. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-07[ARM] 5083/2: Tosa: fix IrDA transciver powerup.Dmitry Baryshkov1-0/+1
On tosa the tranciver LED isn't powered down if the GPIO47 (STUART_TX) isn't configured as low-level. Power it down if IrDA is off to save a bit of power. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-07[ARM] 5047/2: Support resetting by asserting GPIO pinDmitry Baryshkov2-16/+6
This adds support for resetting via assertion of GPIO pin. This e.g. is used on Sharp Zaurus SL-6000. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03[ARM] 5044/1: pwm_bl: add init/notify/exit callbacksPhilipp Zabel1-0/+3
This allows platform code to manipulate GPIOs and brightness level as needed. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03[ARM] pxa: make zylonite use the generic PWM backlight drivereric miao1-1/+0
Patch mostly by Eric Miao, minor edits by rmk. Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-03[ARM] pxa: add generic PWM backlight drivereric miao1-0/+14
Patch mostly from Eric Miao, with minor edits by rmk to convert Eric's driver to a generic PWM-based backlight driver. Signed-off-by: eric miao <eric.miao@marvell.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-06-25Merge branch 'kvm-updates-2.6.26' of ↵Linus Torvalds6-23/+62
git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm * 'kvm-updates-2.6.26' of git://git.kernel.org/pub/scm/linux/kernel/git/avi/kvm: KVM: Remove now unused structs from kvm_para.h x86: KVM guest: Use the paravirt clocksource structs and functions KVM: Make kvm host use the paravirt clocksource structs x86: Make xen use the paravirt clocksource structs and functions x86: Add structs and functions for paravirt clocksource KVM: VMX: Fix host msr corruption with preemption enabled KVM: ioapic: fix lost interrupt when changing a device's irq KVM: MMU: Fix oops on guest userspace access to guest pagetable KVM: MMU: large page update_pte issue with non-PAE 32-bit guests (resend) KVM: MMU: Fix rmap_write_protect() hugepage iteration bug KVM: close timer injection race window in __vcpu_run KVM: Fix race between timer migration and vcpu migration
2008-06-24Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds1-4/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: xen: remove support for non-PAE 32-bit
2008-06-24KVM: Remove now unused structs from kvm_para.hGerd Hoffmann1-18/+0
The kvm_* structs are obsoleted by the pvclock_* ones. Now all users have been switched over and the old structs can be dropped. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-06-24KVM: Make kvm host use the paravirt clocksource structsGerd Hoffmann1-1/+3
This patch updates the kvm host code to use the pvclock structs. It also makes the paravirt clock compatible with Xen. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-06-24x86: Make xen use the paravirt clocksource structs and functionsGerd Hoffmann1-4/+3
This patch updates the xen guest to use the pvclock structs and helper functions. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-06-24x86: Add structs and functions for paravirt clocksourceGerd Hoffmann2-0/+55
This patch adds structs for the paravirt clocksource ABI used by both xen and kvm (pvclock-abi.h). It also adds some helper functions to read system time and wall clock time from a paravirtual clocksource (pvclock.[ch]). They are based on the xen code. They are enabled using CONFIG_PARAVIRT_CLOCK. Subsequent patches of this series will put the code in use. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-06-24xen: remove support for non-PAE 32-bitJeremy Fitzhardinge1-4/+0
Non-PAE operation has been deprecated in Xen for a while, and is rarely tested or used. xen-unstable has now officially dropped non-PAE support. Since Xen/pvops' non-PAE support has also been broken for a while, we may as well completely drop it altogether. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-06-24KVM: close timer injection race window in __vcpu_runMarcelo Tosatti1-0/+1
If a timer fires after kvm_inject_pending_timer_irqs() but before local_irq_disable() the code will enter guest mode and only inject such timer interrupt the next time an unrelated event causes an exit. It would be simpler if the timer->pending irq conversion could be done with IRQ's disabled, so that the above problem cannot happen. For now introduce a new vcpu requests bit to cancel guest entry. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-06-24alpha: fix compile error in arch/alpha/mm/init.cThorsten Kranzkowski1-0/+2
Commit 9267b4b3880d00dc2dab90f1d817c856939114f7 ("alpha: fix module load failures on smp (bug #10926)") causes a regression for my ev4 uniprocessor build: CC arch/alpha/mm/init.o /export/data/repositories/linux-2.6/arch/alpha/mm/init.c:34: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘typeof’ make[2]: *** [arch/alpha/mm/init.o] Error 1 make[1]: *** [arch/alpha/mm] Error 2 make: *** [sub-make] Error 2 This fixes it for me (compile and boot tested): Signed-off-by: Thorsten Kranzkowski <dl8bcu@dl8bcu.de> Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-23tty_driver: Update required method documentationAlan Cox1-3/+2
Some of the requirement rules are now more relaxed. Also correct a contradiction in the previous update Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-21Add return value to reserve_bootmem_node()Bernhard Walle1-1/+1
This patch changes the function reserve_bootmem_node() from void to int, returning -ENOMEM if the allocation fails. This fixes a build problem on x86 with CONFIG_KEXEC=y and CONFIG_NEED_MULTIPLE_NODES=y Signed-off-by: Bernhard Walle <bwalle@suse.de> Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2-0/+17
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: netns: Don't receive new packets in a dead network namespace. sctp: Make sure N * sizeof(union sctp_addr) does not overflow. pppoe: warning fix ipv6: Drop packets for loopback address from outside of the box. ipv6: Remove options header when setsockopt's optlen is 0 mac80211: detect driver tx bugs
2008-06-21netns: Don't receive new packets in a dead network namespace.Eric W. Biederman1-0/+11
Alexey Dobriyan <adobriyan@gmail.com> writes: > Subject: ICMP sockets destruction vs ICMP packets oops > After icmp_sk_exit() nuked ICMP sockets, we get an interrupt. > icmp_reply() wants ICMP socket. > > Steps to reproduce: > > launch shell in new netns > move real NIC to netns > setup routing > ping -i 0 > exit from shell > > BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 > IP: [<ffffffff803fce17>] icmp_sk+0x17/0x30 > PGD 17f3cd067 PUD 17f3ce067 PMD 0 > Oops: 0000 [1] PREEMPT SMP DEBUG_PAGEALLOC > CPU 0 > Modules linked in: usblp usbcore > Pid: 0, comm: swapper Not tainted 2.6.26-rc6-netns-ct #4 > RIP: 0010:[<ffffffff803fce17>] [<ffffffff803fce17>] icmp_sk+0x17/0x30 > RSP: 0018:ffffffff8057fc30 EFLAGS: 00010286 > RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff81017c7db900 > RDX: 0000000000000034 RSI: ffff81017c7db900 RDI: ffff81017dc41800 > RBP: ffffffff8057fc40 R08: 0000000000000001 R09: 000000000000a815 > R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff8057fd28 > R13: ffffffff8057fd00 R14: ffff81017c7db938 R15: ffff81017dc41800 > FS: 0000000000000000(0000) GS:ffffffff80525000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b > CR2: 0000000000000000 CR3: 000000017fcda000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process swapper (pid: 0, threadinfo ffffffff8053a000, task ffffffff804fa4a0) > Stack: 0000000000000000 ffff81017c7db900 ffffffff8057fcf0 ffffffff803fcfe4 > ffffffff804faa38 0000000000000246 0000000000005a40 0000000000000246 > 000000000001ffff ffff81017dd68dc0 0000000000005a40 0000000055342436 > Call Trace: > <IRQ> [<ffffffff803fcfe4>] icmp_reply+0x44/0x1e0 > [<ffffffff803d3a0a>] ? ip_route_input+0x23a/0x1360 > [<ffffffff803fd645>] icmp_echo+0x65/0x70 > [<ffffffff803fd300>] icmp_rcv+0x180/0x1b0 > [<ffffffff803d6d84>] ip_local_deliver+0xf4/0x1f0 > [<ffffffff803d71bb>] ip_rcv+0x33b/0x650 > [<ffffffff803bb16a>] netif_receive_skb+0x27a/0x340 > [<ffffffff803be57d>] process_backlog+0x9d/0x100 > [<ffffffff803bdd4d>] net_rx_action+0x18d/0x250 > [<ffffffff80237be5>] __do_softirq+0x75/0x100 > [<ffffffff8020c97c>] call_softirq+0x1c/0x30 > [<ffffffff8020f085>] do_softirq+0x65/0xa0 > [<ffffffff80237af7>] irq_exit+0x97/0xa0 > [<ffffffff8020f198>] do_IRQ+0xa8/0x130 > [<ffffffff80212ee0>] ? mwait_idle+0x0/0x60 > [<ffffffff8020bc46>] ret_from_intr+0x0/0xf > <EOI> [<ffffffff80212f2c>] ? mwait_idle+0x4c/0x60 > [<ffffffff80212f23>] ? mwait_idle+0x43/0x60 > [<ffffffff8020a217>] ? cpu_idle+0x57/0xa0 > [<ffffffff8040f380>] ? rest_init+0x70/0x80 > Code: 10 5b 41 5c 41 5d 41 5e c9 c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 53 > 48 83 ec 08 48 8b 9f 78 01 00 00 e8 2b c7 f1 ff 89 c0 <48> 8b 04 c3 48 83 c4 08 > 5b c9 c3 66 66 66 66 66 2e 0f 1f 84 00 > RIP [<ffffffff803fce17>] icmp_sk+0x17/0x30 > RSP <ffffffff8057fc30> > CR2: 0000000000000000 > ---[ end trace ea161157b76b33e8 ]--- > Kernel panic - not syncing: Aiee, killing interrupt handler! Receiving packets while we are cleaning up a network namespace is a racy proposition. It is possible when the packet arrives that we have removed some but not all of the state we need to fully process it. We have the choice of either playing wack-a-mole with the cleanup routines or simply dropping packets when we don't have a network namespace to handle them. Since the check looks inexpensive in netif_receive_skb let's just drop the incoming packets. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: David S. Miller <davem@davemloft.net>