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SubjectRe: [GIT] kbuild and kconfig fixes for 2.6.37-rc5
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On 5 December 2010 16:51, trapDoor <trapdoor6@gmail.com> wrote:
> On Sun, Dec 5, 2010 at 4:11 PM, Randy Dunlap <randy.dunlap@oracle.com> wrote:
>> On Sun, 5 Dec 2010 15:42:46 +0000 trapDoor wrote:
>>
>>> Hello,
>>> I couldn't wait and I merged the changes into my copy of mainline
>>> tree. The merge was successful, no conflicts and the merge-diffstat
>>> was exactly the same as above. However, when  running oldconfig on the
>>> patched kernel I still get lots of warnings:
>>>
>>> warning: (GPIO_RDC321X && PCI && GPIOLIB) selects MFD_RDC321X which
>>> has unmet direct dependencies (MFD_SUPPORT && PCI)
>>> warning: (I2C_ISCH && I2C && PCI || GPIO_SCH && GPIOLIB && PCI ||
>>> GPIO_VX855 && GPIOLIB || GPIO_RDC321X && PCI && GPIOLIB ||
[...]
>>> MFD_JZ4740_ADC && MFD_SUPPORT && MACH_JZ4740 || MFD_TPS6586X &&
>>> MFD_SUPPORT && I2C=y && GPIOLIB && GENERIC_HARDIRQS || MFD_VX855 &&
>>> MFD_SUPPORT && PCI) selects MFD_CORE which has unmet direct
>>> dependencies (MFD_SUPPORT)
>>
>> That's 2 warnings.  I have sent a patch for the first one.
>> Looks like I need to resend it.
>
> I was actually impressed by the amount of lines produced by those two
> warnings :) I'd call it 'a lot'.

This could be simplified to only show the first option of every '&&'
expression, something like below:

warning: I2C_ISCH selects MFD_CORE...
warning: GPIO_SCH selects MFD_CORE...

But I couldn't figure out whether the expression reduction code in
kbuild reorders the options or not.

--
Catalin
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