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| author |   Yue Hu <huyue2@yulong.com> | 2021-05-21 11:44:32 +0800 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2021-06-14 13:57:40 +0200 |
| commit | 83c49302566ea7328e6962fb81ceada2c93486b9 (patch) | |
| tree | fd60c437fefbb81053dfb97abdd00d8bce28e0f5 /drivers/mmc | |
| parent | mmc: cqhci: fix typo (diff) | |
| download | wireguard-linux-83c49302566ea7328e6962fb81ceada2c93486b9.tar.xz wireguard-linux-83c49302566ea7328e6962fb81ceada2c93486b9.zip | |
mmc: cqhci: introduce get_trans_desc_offset()
The same calculation to get transfer descriptor offset is already used
at 3 different locations. Let's create a new helper to simplify code.
Signed-off-by: Yue Hu <huyue2@yulong.com>
Link: https://lore.kernel.org/r/20210521034432.2321-1-zbestahu@gmail.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/cqhci-core.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/mmc/host/cqhci-core.c b/drivers/mmc/host/cqhci-core.c index 54f4f9ad249d..38559a956330 100644 --- a/drivers/mmc/host/cqhci-core.c +++ b/drivers/mmc/host/cqhci-core.c @@ -45,17 +45,23 @@ static inline u8 *get_link_desc(struct cqhci_host *cq_host, u8 tag) return desc + cq_host->task_desc_len; } +static inline size_t get_trans_desc_offset(struct cqhci_host *cq_host, u8 tag) +{ + return cq_host->trans_desc_len * cq_host->mmc->max_segs * tag; +} + static inline dma_addr_t get_trans_desc_dma(struct cqhci_host *cq_host, u8 tag) { - return cq_host->trans_desc_dma_base + - (cq_host->mmc->max_segs * tag * - cq_host->trans_desc_len); + size_t offset = get_trans_desc_offset(cq_host, tag); + + return cq_host->trans_desc_dma_base + offset; } static inline u8 *get_trans_desc(struct cqhci_host *cq_host, u8 tag) { - return cq_host->trans_desc_base + - (cq_host->trans_desc_len * cq_host->mmc->max_segs * tag); + size_t offset = get_trans_desc_offset(cq_host, tag); + + return cq_host->trans_desc_base + offset; } static void setup_trans_desc(struct cqhci_host *cq_host, u8 tag) @@ -194,8 +200,7 @@ static int cqhci_host_alloc_tdl(struct cqhci_host *cq_host) cq_host->desc_size = cq_host->slot_sz * cq_host->num_slots; - cq_host->data_size = cq_host->trans_desc_len * cq_host->mmc->max_segs * - cq_host->mmc->cqe_qdepth; + cq_host->data_size = get_trans_desc_offset(cq_host, cq_host->mmc->cqe_qdepth); pr_debug("%s: cqhci: desc_size: %zu data_sz: %zu slot-sz: %d\n", mmc_hostname(cq_host->mmc), cq_host->desc_size, cq_host->data_size, |