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| author | Pierre Ossman <drzeus@drzeus.cx> | 2007-02-03 13:36:41 +0100 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-02-04 20:54:12 +0100 |
| commit | f9d429a2e579ed7c51c49a81265f7e7d2c59c197 (patch) | |
| tree | e10cab71de9b660d1da22756eb406f57befd0da6 /drivers/mmc | |
| parent | c70840e819acdbab96b8cdf71d27cb68c6567efa (diff) | |
| download | kernel-crypto-f9d429a2e579ed7c51c49a81265f7e7d2c59c197.tar.gz kernel-crypto-f9d429a2e579ed7c51c49a81265f7e7d2c59c197.tar.xz kernel-crypto-f9d429a2e579ed7c51c49a81265f7e7d2c59c197.zip | |
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 <drzeus@drzeus.cx>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | 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 7e607b75f4b..e65f8a0a934 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; } |