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    Subject[PATCH 5/5] bus: mhi: core: Move MHI_MAX_MTU to external header file
    Date
    From: Hemant Kumar <hemantk@codeaurora.org>

    Currently this macro is defined in internal MHI header as
    a TRE length mask. Moving it to external header allows MHI
    client drivers to set this upper bound for the transmit
    buffer size.

    Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
    Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
    Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
    ---
    drivers/bus/mhi/core/internal.h | 1 -
    include/linux/mhi.h | 3 +++
    2 files changed, 3 insertions(+), 1 deletion(-)

    diff --git a/drivers/bus/mhi/core/internal.h b/drivers/bus/mhi/core/internal.h
    index 33c23203c531..3e41edae829c 100644
    --- a/drivers/bus/mhi/core/internal.h
    +++ b/drivers/bus/mhi/core/internal.h
    @@ -453,7 +453,6 @@ enum mhi_pm_state {
    #define CMD_EL_PER_RING 128
    #define PRIMARY_CMD_RING 0
    #define MHI_DEV_WAKE_DB 127
    -#define MHI_MAX_MTU 0xffff
    #define MHI_RANDOM_U32_NONZERO(bmsk) (prandom_u32_max(bmsk) + 1)

    enum mhi_er_type {
    diff --git a/include/linux/mhi.h b/include/linux/mhi.h
    index 6522a4adc794..10ebda44ea3c 100644
    --- a/include/linux/mhi.h
    +++ b/include/linux/mhi.h
    @@ -15,6 +15,9 @@
    #include <linux/wait.h>
    #include <linux/workqueue.h>

    +/* MHI client drivers to set this upper bound for tx buffer */
    +#define MHI_MAX_MTU 0xffff
    +
    #define MHI_MAX_OEM_PK_HASH_SEGMENTS 16

    struct mhi_chan;
    --
    2.17.1
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