kernel/include/linux/mmc/core.h, branch linux-4.1.y

mmc: sdhci: fix dma memory leak in sdhci_pre_req()

2015-10-22T21:43:24Z

commit d31911b9374a76560d2c8ea4aa6ce5781621e81d upstream. Currently one mrq->data maybe execute dma_map_sg() twice when mmc subsystem prepare over one new request, and the following log show up: sdhci[sdhci_pre_dma_transfer] invalid cookie: 24, next-cookie 25 In this condition, mrq->date map a dma-memory(1) in sdhci_pre_req for the first time, and map another dma-memory(2) in sdhci_prepare_data for the second time. But driver only unmap the dma-memory(2), and dma-memory(1) never unmapped, which cause the dma memory leak issue. This patch use another method to map the dma memory for the mrq->data which can fix this dma memory leak issue. Fixes: 348487cb28e6 ("mmc: sdhci: use pipeline mmc requests to improve performance") Reported-and-tested-by: Jiri Slaby Signed-off-by: Haibo Chen Signed-off-by: Ulf Hansson Signed-off-by: Jiri Slaby Signed-off-by: Greg Kroah-Hartman

mmc: core: Convert the error field in struct mmc_command|data into an int

2015-04-08T10:10:20Z

Everybody expects the error field in the struct mmc_command|data to be and int but it's actually an unsigned int. Let's convert it into an int to meet the expectations. Signed-off-by: Ulf Hansson

mmc: core: always check status after reset

2015-01-19T08:56:27Z

Always check if the card is alive after a successful reset. This allows us to remove mmc_hw_reset_check(), leaving mmc_hw_reset() as the only card reset interface. Signed-off-by: Johan Rudholm Signed-off-by: Ulf Hansson

mmc: core: Let mmc_send_tuning() to take struct mmc_host* as parameter

2014-12-08T08:11:04Z

To be able to use mmc_send_tuning() prior the struct mmc_card has been allocated, let's convert it to take the struct mmc_host* as parameter instead. Suggested-by: Stephen Boyd Signed-off-by: Ulf Hansson Acked-by: Dong Aisheng Reviewed-by: Stephen Boyd

mmc: core: add core-level function for sending tuning commands

2014-11-26T13:36:51Z

According to the SD card spec, Add a manual tuning command function for SDR104/HS200. Sending command 19 or command 21 to read data and compare with the tunning block pattern. This patch will help to decrease some platform private codes in SDHCI platform_execute_tuning() callbacks. Signed-off-by: Minda Chen Signed-off-by: Barry Song Signed-off-by: Ulf Hansson

mmc: core: Remove the redundant mmc_send_ext_csd() API

2014-11-10T11:40:44Z

Previous patches has replaced the calls to mmc_send_ext_csd() into mmc_get_ext_csd(), thus mmc_send_ext_csd() has become redundant. Let's remove it. Signed-off-by: Ulf Hansson

mmc: core: Export mmc_get_ext_csd()

2014-11-10T11:40:43Z

Callers of mmc_send_ext_csd() will be able to decrease code duplication by using mmc_get_ext_csd() instead. Let's make it available. Signed-off-by: Ulf Hansson

mmc: core: Add ignore_crc flag to __mmc_switch

2014-02-23T15:40:30Z

Instead of handle specific adaptations, releated to certain switch operations, inside __mmc_switch, push this to be handled by the caller instead. Signed-off-by: Ulf Hansson Signed-off-by: Chris Ball

mmc: core: Rename cmd_timeout_ms to busy_timeout

2014-02-23T15:40:26Z

To better reflect that the cmd_timeout_ms is directly related to the busy detection timeout, let's rename it. Signed-off-by: Ulf Hansson Signed-off-by: Chris Ball

mmc: core: Do not poll for busy with status cmd for all switch cmds

2013-10-31T00:26:24Z

Some switch operations like poweroff notify, shall according to the spec not be followed by any other new commands. For these cases and when the host does'nt support MMC_CAP_WAIT_WHILE_BUSY, we must not send status commands to poll for busy detection. Instead wait for the stated timeout from the EXT_CSD before completing the request. Signed-off-by: Ulf Hansson Cc: Jaehoon Chung Signed-off-by: Chris Ball