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Add kern.features flag for MMCCAM

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kern.features.mmcam will be present and equal to 1 if the kernel has been
compiled with option MMCCAM.
This will help sdio-related userland tools to fail-fast if running on the kernel
without MMCCAM enabled.

Approved by:	imp (mentor)
Differential Revision:	https://reviews.freebsd.org/D12386
This commit is contained in:
Ilya Bakulin 2017-09-18 20:17:08 +00:00
parent 029c02a3ae
commit ffa317051b
1 changed files with 2 additions and 0 deletions
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2
sys/cam/mmc/mmc_xpt.c
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@ -63,6 +63,8 @@ __FBSDID("$FreeBSD$");
#include <machine/_inttypes.h> /* for PRIu64 */
#include "opt_cam.h"
FEATURE(mmccam, "CAM-based MMC/SD/SDIO stack");
static struct cam_ed * mmc_alloc_device(struct cam_eb *bus,
struct cam_et *target, lun_id_t lun_id);
static void mmc_dev_async(u_int32_t async_code, struct cam_eb *bus,