linux-kernel - undefined reference to `mmc_pm_notify' when selected MMC without PM.

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Date:	Fri, 13 Aug 2010 19:36:19 +0900
From:	Kukjin Kim <kgene.kim@...sung.com>
To:	linux-arm-kernel@...ts.infradead.org, linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	ben-linux@...ff.org, 'Andrew Morton' <akpm@...ux-foundation.org>,
	'Maxim Levitsky' <maximlevitsky@...il.com>
Subject: undefined reference to `mmc_pm_notify' when selected MMC without PM.

Hi,

Following is build error when selected MMC without PM.

drivers/built-in.o: In function `mmc_alloc_host':
drivers/mmc/core/host.c:108: undefined reference to `mmc_pm_notify'
make[1]: *** [.tmp_vmlinux1] Error 1
make: *** [sub-make] Error 2

That is added from Maxim's ' mmc: fix all hangs related to mmc/sd card
insert/removal during suspend/resume '
(commit ID: 4c2ef25fe0b847d2ae818f74758ddb0be1c27d8e)

Below is temporary patch for avoiding build error.
But I'm not sure about this... :-(

---

diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 0efe631..d80cfdc 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -86,7 +86,9 @@ struct mmc_host *mmc_alloc_host(int extra, struct device
*dev)
        init_waitqueue_head(&host->wq);
        INIT_DELAYED_WORK(&host->detect, mmc_rescan);
        INIT_DELAYED_WORK_DEFERRABLE(&host->disable,
mmc_host_deeper_disable);
+#ifdef CONFIG_PM
        host->pm_notify.notifier_call = mmc_pm_notify;
+#endif

        /*
         * By default, hosts do not support SGIO or large requests.

---

Thanks.

Best regards,
Kgene.
--
Kukjin Kim <kgene.kim@...sung.com>, Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.

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