diff --git a/drivers/android/vendor_hooks.c b/drivers/android/vendor_hooks.c index 8607c6779c6c..66a0564779be 100644 --- a/drivers/android/vendor_hooks.c +++ b/drivers/android/vendor_hooks.c @@ -62,6 +62,7 @@ #include #include #include +#include /* * Export tracepoints that act as a bare tracehook (ie: have no trace event @@ -292,3 +293,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_force_compatible_pre); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_force_compatible_post); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_regmap_update); EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_dma_buf_release); +EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mmc_check_status); diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c index b15c034b42fb..f48ff918546d 100644 --- a/drivers/mmc/core/queue.c +++ b/drivers/mmc/core/queue.c @@ -20,6 +20,7 @@ #include "card.h" #include "crypto.h" #include "host.h" +#include #define MMC_DMA_MAP_MERGE_SEGMENTS 512 @@ -234,7 +235,7 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, enum mmc_issue_type issue_type; enum mmc_issued issued; bool get_card, cqe_retune_ok; - int ret; + int ret = 0; if (mmc_card_removed(mq->card)) { req->rq_flags |= RQF_QUIET; @@ -263,7 +264,8 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx, * For MMC host software queue, we only allow 2 requests in * flight to avoid a long latency. */ - if (host->hsq_enabled && mq->in_flight[issue_type] > 2) { + trace_android_vh_mmc_check_status(bd, &ret); + if (!ret && host->hsq_enabled && mq->in_flight[issue_type] > 2) { spin_unlock_irq(&mq->lock); return BLK_STS_RESOURCE; } diff --git a/include/trace/hooks/mmc.h b/include/trace/hooks/mmc.h new file mode 100644 index 000000000000..23242c176cf0 --- /dev/null +++ b/include/trace/hooks/mmc.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM mmc +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH trace/hooks +#if !defined(_TRACE_HOOK_MMC_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_HOOK_MMC_H +#include +struct blk_mq_queue_data; + +/* + * Following tracepoints are not exported in tracefs and provide a + * mechanism for vendor modules to hook and extend functionality + */ +DECLARE_HOOK(android_vh_mmc_check_status, + TP_PROTO(const struct blk_mq_queue_data *bd, int *ret), + TP_ARGS(bd, ret)); + +#endif /* _TRACE_HOOK_MMC_H */ +/* This part must be outside protection */ +#include