linux-kernel - Re: [RFC] Simplifying kernel configuration for distro issues

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Date:	Thu, 19 Jul 2012 20:49:12 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Josh Boyer <jwboyer@...hat.com>
Cc:	Paul Bolle <pebolle@...cali.nl>,
	Steven Rostedt <rostedt@...dmis.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Dave Jones <davej@...hat.com>,
	Greg Kroah-Hartman <greg@...ah.com>,
	Ubuntu Kernel Team <kernel-team@...ts.ubuntu.com>,
	Debian Kernel Team <debian-kernel@...ts.debian.org>,
	OpenSUSE Kernel Team <opensuse-kernel@...nsuse.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Fedora Kernel Team <kernel-team@...oraproject.org>
Subject: Re: [RFC] Simplifying kernel configuration for distro issues

On Thu, Jul 19, 2012 at 8:22 PM, Josh Boyer <jwboyer@...hat.com> wrote:
> On Thu, Jul 19, 2012 at 08:20:36PM +0200, Paul Bolle wrote:
>> On Thu, 2012-07-19 at 13:19 -0400, Josh Boyer wrote:
>> > kconfig already spits out warnings for symbols being selected that
>> > don't exist.
>
>> Does it? Since when does it do that? Or do you mean select in a more
>> general way (not just meaning Kconfig's "select" statement)?
>
> I believe Alan was more correct than me when he said it was 'make
> oldconfig' that produced the warnings.

Kconfig does spit out warnings for selecting things with unmet dependencies.
But does anyone care?

[...checking logs...]

Oh, only 12 warnings in the v3.5-rc7 builds. Not that bad as my gut feeling
said...

warning: (ETRAX_USB_HOST && MOUSE_APPLETOUCH && MOUSE_BCM5974 &&
MOUSE_SYNAPTICS_USB && JOYSTICK_XPAD && TABLET_USB_ACECAD &&
TABLET_USB_AIPTEK && TABLET_USB_HANWANG && TABLET_USB_KBTAB &&
TABLET_USB_WACOM && TOUCHSCREEN_USB_COMPOSITE && INPUT_ATI_REMOTE2 &&
INPUT_KEYSPAN_REMOTE && INPUT_POWERMATE && INPUT_YEALINK &&
INPUT_CM109) selects USB which has unmet direct dependencies
(USB_SUPPORT && USB_ARCH_HAS_HCD): 10 warnings in 2 logs
warning: (IWLWIFI && IWLEGACY && ATH5K && ATH9K && ATH9K_HTC &&
CARL9170_LEDS) selects MAC80211_LEDS which has unmet direct
dependencies (NET && WIRELESS && MAC80211 && LEDS_CLASS): 10 warnings
in 2 logs
warning: (LOCKDEP && FAULT_INJECTION_STACKTRACE_FILTER && LATENCYTOP
&& KMEMCHECK) selects FRAME_POINTER which has unmet direct
dependencies (DEBUG_KERNEL && (CRIS || M68K || FRV || UML || AVR32 ||
SUPERH || BLACKFIN || MN10300) || ARCH_WANT_FRAME_POINTERS): 10
warnings in 2 logs
warning: (MPC836x_RDK && MTD_NAND_FSL_ELBC && MTD_NAND_FSL_UPM)
selects FSL_LBC which has unmet direct dependencies (FSL_SOC): 9
warnings in 2 logs
warning: (SINGLE_MEMORY_CHUNK) selects NEED_MULTIPLE_NODES which has
unmet direct dependencies (DISCONTIGMEM || NUMA): 9 warnings in 2 logs
warning: (COMPAT) selects COMPAT_BINFMT_ELF which has unmet direct
dependencies (COMPAT && BINFMT_ELF): 3 warnings in 1 logs
warning: (DRM) selects DMA_SHARED_BUFFER which has unmet direct
dependencies (EXPERIMENTAL): 3 warnings in 1 logs
warning: (DRM_RADEON_KMS && DRM_I915 && STUB_POULSBO && FB_BACKLIGHT
&& USB_APPLEDISPLAY && FB_OLPC_DCON && ASUS_LAPTOP && SONY_LAPTOP &&
THINKPAD_ACPI && EEEPC_LAPTOP && ACPI_CMPC && SAMSUNG_Q10 &&
APPLE_GMUX) selects BACKLIGHT_CLASS_DEVICE which has unmet direct
dependencies (HAS_IOMEM && BACKLIGHT_LCD_SUPPORT): 3 warnings in 1
logs
warning: (IA64) selects PM which has unmet direct dependencies
(PM_SLEEP || PM_RUNTIME): 4 warnings in 1 logs
warning: (MOUSE_APPLETOUCH && MOUSE_BCM5974 && MOUSE_SYNAPTICS_USB &&
JOYSTICK_XPAD && TABLET_USB_ACECAD && TABLET_USB_AIPTEK &&
TABLET_USB_HANWANG && TABLET_USB_KBTAB && TABLET_USB_WACOM &&
TOUCHSCREEN_USB_COMPOSITE && INPUT_ATI_REMOTE2 && INPUT_KEYSPAN_REMOTE
&& INPUT_POWERMATE && INPUT_YEALINK && INPUT_CM109 && RC_ATI_REMOTE &&
IR_IMON && IR_MCEUSB && IR_REDRAT3 && IR_STREAMZAP && DRM_USB) selects
USB which has unmet direct dependencies (USB_SUPPORT &&
USB_ARCH_HAS_HCD): 5 warnings in 1 logs
warning: (PLATFORM_AT32AP) selects HAVE_NET_MACB which has unmet
direct dependencies (NETDEVICES && ETHERNET): 3 warnings in 1 logs
warning: (PREEMPT && DEBUG_ATOMIC_SLEEP) selects PREEMPT_COUNT which
has unmet direct dependencies (COLDFIRE): 5 warnings in 1 logs

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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