>From c8467c6b0ea0443f948c0ece281e1ca8e92f6ea7 Mon Sep 17 00:00:00 2001 From: Pierre Ossman Date: Sat, 3 Feb 2007 13:36:41 +0100 Subject: [PATCH] mmc: tifm: replace kmap with page_address Since we actively avoid highmem, calling kmap_atomic() instead of page_address() is effectively only obfuscation. Signed-off-by: Pierre Ossman --- drivers/mmc/tifm_sd.c | 15 ++++----------- 1 files changed, 4 insertions(+), 11 deletions(-) diff --git a/drivers/mmc/tifm_sd.c b/drivers/mmc/tifm_sd.c index 7e607b7..e65f8a0 100644 --- a/drivers/mmc/tifm_sd.c +++ b/drivers/mmc/tifm_sd.c @@ -107,14 +107,9 @@ struct tifm_sd { }; -static char* tifm_sd_kmap_atomic(struct mmc_data *data) +static char* tifm_sd_data_buffer(struct mmc_data *data) { - return kmap_atomic(data->sg->page, KM_BIO_SRC_IRQ) + data->sg->offset; -} - -static void tifm_sd_kunmap_atomic(char *buffer, struct mmc_data *data) -{ - kunmap_atomic(buffer - data->sg->offset, KM_BIO_SRC_IRQ); + return page_address(data->sg->page) + data->sg->offset; } static int tifm_sd_transfer_data(struct tifm_dev *sock, struct tifm_sd *host, @@ -127,18 +122,17 @@ static int tifm_sd_transfer_data(struct tifm_dev *sock, struct tifm_sd *host, if (host_status & TIFM_MMCSD_BRS) { /* in non-dma rx mode BRS fires when fifo is still not empty */ if (no_dma && (cmd->data->flags & MMC_DATA_READ)) { - buffer = tifm_sd_kmap_atomic(host->req->data); + buffer = tifm_sd_data_buffer(host->req->data); while (host->buffer_size > host->buffer_pos) { t_val = readl(sock->addr + SOCK_MMCSD_DATA); buffer[host->buffer_pos++] = t_val & 0xff; buffer[host->buffer_pos++] = (t_val >> 8) & 0xff; } - tifm_sd_kunmap_atomic(buffer, host->req->data); } return 1; } else if (no_dma) { - buffer = tifm_sd_kmap_atomic(host->req->data); + buffer = tifm_sd_data_buffer(host->req->data); if ((cmd->data->flags & MMC_DATA_READ) && (host_status & TIFM_MMCSD_AF)) { for (cnt = 0; cnt < TIFM_MMCSD_FIFO_SIZE; cnt++) { @@ -163,7 +157,6 @@ static int tifm_sd_transfer_data(struct tifm_dev *sock, struct tifm_sd *host, } } } - tifm_sd_kunmap_atomic(buffer, host->req->data); } return 0; } -- 1.4.4.2