[mmc-utils] [PATCH] Revert "mmc-utils: Remove unused MMC_BLOCK_MAJOR"

[liu.ming50@gmail.com]

From: Ming Liu <liu.ming50@gmail.com>

This reverts commit 118dc4a0909f3413b6f8bd086cef43262e89dc2a.

A compiling error was observed without this reverting, as follows:
| mmc_cmds.c: In function 'read_extcsd':
| mmc_cmds.c:72:25: error: 'MMC_BLOCK_MAJOR' undeclared (first use in this function)
|    72 |         ret = ioctl(fd, MMC_IOC_CMD, &idata);
|       |                         ^~~~~~~~~~~
| mmc_cmds.c:72:25: note: each undeclared identifier is reported only once for each function it appears in
| mmc_cmds.c: In function 'write_extcsd_value':
| mmc_cmds.c:93:25: error: 'MMC_BLOCK_MAJOR' undeclared (first use in this function)
|    93 |         ret = ioctl(fd, MMC_IOC_CMD, &idata);
|       |                         ^~~~~~~~~~~
| mmc_cmds.c: In function 'send_status':
| mmc_cmds.c:110:25: error: 'MMC_BLOCK_MAJOR' undeclared (first use in this function)
|   110 |         ret = ioctl(fd, MMC_IOC_CMD, &idata);
|       |                         ^~~~~~~~~~~
| mmc_cmds.c: In function 'set_write_protect':
| mmc_cmds.c:148:25: error: 'MMC_BLOCK_MAJOR' undeclared (first use in this function)
|   148 |         ret = ioctl(fd, MMC_IOC_CMD, &idata);
|       |                         ^~~~~~~~~~~
| mmc_cmds.c: In function 'send_write_protect_type':
| mmc_cmds.c:172:25: error: 'MMC_BLOCK_MAJOR' undeclared (first use in this function)
|   172 |         ret = ioctl(fd, MMC_IOC_CMD, &idata);
|       |                         ^~~~~~~~~~~
| mmc_cmds.c: In function 'do_rpmb_op':
| mmc_cmds.c:2157:25: error: 'MMC_BLOCK_MAJOR' undeclared (first use in this function)
|  2157 |         err = ioctl(fd, MMC_IOC_MULTI_CMD, mioc);
|       |                         ^~~~~~~~~~~~~~~~~
| mmc_cmds.c: In function 'erase':
| mmc_cmds.c:2659:29: error: 'MMC_BLOCK_MAJOR' undeclared (first use in this function)
|  2659 |         ret = ioctl(dev_fd, MMC_IOC_MULTI_CMD, multi_cmd);
|       |                             ^~~~~~~~~~~~~~~~~
| mmc_cmds.c: In function 'do_ffu':
| mmc_cmds.c:2888:37: error: 'MMC_BLOCK_MAJOR' undeclared (first use in this function)
|  2888 |                 ret = ioctl(dev_fd, MMC_IOC_MULTI_CMD, multi_cmd);
|       |                                     ^~~~~~~~~~~~~~~~~
| make: *** [Makefile:36: mmc_cmds.o] Error 1
| make: *** Waiting for unfinished jobs....

Signed-off-by: Ming Liu <liu.ming50@gmail.com>
---
 mmc.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mmc.h b/mmc.h
index 25d6864..193dfee 100644
--- a/mmc.h
+++ b/mmc.h
@@ -19,6 +19,9 @@
 
 #include <linux/mmc/ioctl.h>
 
+/* From kernel linux/major.h */
+#define MMC_BLOCK_MAJOR			179
+
 /* From kernel linux/mmc/mmc.h */
 #define MMC_SWITCH		6	/* ac	[31:0] See below	R1b */
 #define MMC_SEND_EXT_CSD	8	/* adtc				R1  */
-- 
2.25.1