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-rw-r--r--drivers/mmc/core/block.c4
-rw-r--r--drivers/mmc/core/core.h9
-rw-r--r--drivers/mmc/core/mmc.c7
-rw-r--r--drivers/mmc/core/mmc_ops.c4
4 files changed, 21 insertions, 3 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 6cd5d03bcc64..689eb9afeeed 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -2237,6 +2237,10 @@ enum mmc_issued mmc_blk_mq_issue_rq(struct mmc_queue *mq, struct request *req)
case MMC_ISSUE_ASYNC:
switch (req_op(req)) {
case REQ_OP_FLUSH:
+ if (!mmc_cache_enabled(host)) {
+ blk_mq_end_request(req, BLK_STS_OK);
+ return MMC_REQ_FINISHED;
+ }
ret = mmc_blk_cqe_issue_flush(mq, req);
break;
case REQ_OP_READ:
diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
index 8032451abaea..db3c9c68875d 100644
--- a/drivers/mmc/core/core.h
+++ b/drivers/mmc/core/core.h
@@ -29,6 +29,7 @@ struct mmc_bus_ops {
int (*shutdown)(struct mmc_host *);
int (*hw_reset)(struct mmc_host *);
int (*sw_reset)(struct mmc_host *);
+ bool (*cache_enabled)(struct mmc_host *);
};
void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops);
@@ -163,4 +164,12 @@ static inline void mmc_post_req(struct mmc_host *host, struct mmc_request *mrq,
host->ops->post_req(host, mrq, err);
}
+static inline bool mmc_cache_enabled(struct mmc_host *host)
+{
+ if (host->bus_ops->cache_enabled)
+ return host->bus_ops->cache_enabled(host);
+
+ return false;
+}
+
#endif
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index d35231feac68..8674c3e0c02c 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -2029,6 +2029,12 @@ static void mmc_detect(struct mmc_host *host)
}
}
+static bool _mmc_cache_enabled(struct mmc_host *host)
+{
+ return host->card->ext_csd.cache_size > 0 &&
+ host->card->ext_csd.cache_ctrl & 1;
+}
+
static int _mmc_suspend(struct mmc_host *host, bool is_suspend)
{
int err = 0;
@@ -2208,6 +2214,7 @@ static const struct mmc_bus_ops mmc_ops = {
.alive = mmc_alive,
.shutdown = mmc_shutdown,
.hw_reset = _mmc_hw_reset,
+ .cache_enabled = _mmc_cache_enabled,
};
/*
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index cdf02d88fe92..5756781fef37 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -968,9 +968,7 @@ int mmc_flush_cache(struct mmc_card *card)
{
int err = 0;
- if (mmc_card_mmc(card) &&
- (card->ext_csd.cache_size > 0) &&
- (card->ext_csd.cache_ctrl & 1)) {
+ if (mmc_cache_enabled(card->host)) {
err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_FLUSH_CACHE, 1,
MMC_CACHE_FLUSH_TIMEOUT_MS);