[PATCH 4.4 052/131] Revert "mmc: block: dont use parameter prefix if built as module"

From: Greg Kroah-Hartman
Date: Mon Apr 01 2019 - 13:32:06 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

[ Upstream commit a5ebb87db84392edfd3142c3a6a78431d820a789 ]

This reverts commit 829b6962f7e3cfc06f7c5c26269fd47ad48cf503.

Revert this change as it causes a sysfs path to change and therefore
introduces and ABI regression. More precisely Android's vold is not being
able to access /sys/module/mmcblk/parameters/perdev_minors any more, since
the path becomes changed to: "/sys/module/mmc_block/..."

Fixes: 829b6962f7e3 ("mmc: block: don't use parameter prefix if built as
module")
Reported-by: John Stultz <john.stultz@xxxxxxxxxx>
Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/mmc/card/block.c | 3 ---
1 file changed, 3 deletions(-)

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index c15b879c3070..f600bdcaf5b4 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -47,13 +47,10 @@
#include "queue.h"

MODULE_ALIAS("mmc:block");
-
-#ifdef KERNEL
#ifdef MODULE_PARAM_PREFIX
#undef MODULE_PARAM_PREFIX
#endif
#define MODULE_PARAM_PREFIX "mmcblk."
-#endif

#define INAND_CMD38_ARG_EXT_CSD 113
#define INAND_CMD38_ARG_ERASE 0x00
--
2.19.1