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From: Arnd Bergmann <arnd@arndb.de>
To: Pramod Gurav <pramod.gurav.etc@gmail.com>
Cc: Pramod Gurav <pramod.gurav@smartplayin.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
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        Chris Ball <chris@printf.net>, Ulf Hansson <ulf.hansson@linaro.org>,
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Subject: Re: [PATCH] mmc: atmel-mci: fix mismatched section on atmci_cleanup_slot
Date: Sat, 27 Sep 2014 13:59:55 +0200
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On Saturday 27 September 2014 08:45:33 Pramod Gurav wrote:
> Hi Arnd,
> 
> On Sat, Sep 27, 2014 at 1:04 AM, Arnd Bergmann <arnd@arndb.de> wrote:
> > As of 528bc7808f4e ("mmc: atmel-mci: Release mmc resources on failure in probe"),
> > the atmci_probe() function calls atmci_cleanup_slot in the failure path.
> >
> > This causes a new warning whenever the driver is built:
> >
> > WARNING: drivers/mmc/host/built-in.o(.init.text+0xa04): Section mismatch in reference from the function atmci_probe() to the function .exit.text:atmci_cleanup_slot()
> > The function __init atmci_probe() references
> > a function __exit atmci_cleanup_slot().
> Thanks for this though I am not owner of the driver but the last
> commit was mine.
> but how come I did not see this warning? Any flag with compiler that
> warned about this?

The warning above is only enabled if CONFIG_DEBUG_SECTION_MISMATCH is set, otherwise
you get this one:

WARNING: modpost: Found 1 section mismatch(es).
To see full details build your kernel with:
'make CONFIG_DEBUG_SECTION_MISMATCH=y'

	Arnd