--- linux-3.18.12/drivers/mmc/core/quirks.c	2015-05-05 09:46:42.748200476 -0700
+++ linux-3.18.12/drivers/mmc/core/quirks.c	2015-05-05 09:59:52.058118203 -0700
@@ -71,7 +71,9 @@ static const struct mmc_fixup mmc_fixup_
 
 void mmc_fixup_device(struct mmc_card *card, const struct mmc_fixup *table)
 {
+#if 0
 	extern unsigned mmc_debug;
+#endif
 	const struct mmc_fixup *f;
 	u64 rev = cid_rev_card(card);
 
@@ -99,7 +101,9 @@ void mmc_fixup_device(struct mmc_card *c
 	/* SDHCI on BCM2708 - bug causes a certain sequence of CMD23 operations to fail.
 	 * Disable this flag for all cards (fall-back to CMD25/CMD18 multi-block transfers).
 	 */
+#if 0
 	if (mmc_debug & (1<<13))
 	card->quirks |= MMC_QUIRK_BLK_NO_CMD23;
+#endif
 }
 EXPORT_SYMBOL(mmc_fixup_device);