diff options
| author | Christophe RICARD <christophe.ricard@gmail.com> | 2016-02-13 16:15:26 +0100 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2016-06-25 16:26:11 +0200 |
| commit | d34306e28891257e3c4e8c172af19d70f84fa272 (patch) | |
| tree | 7d5d3cdb293295ec42e41a720ebc33adf774d411 /drivers | |
| parent | tpm/st33zp24/spi: Use functions name with st33zp24_spi_ prefix (diff) | |
| download | linux-d34306e28891257e3c4e8c172af19d70f84fa272.tar.xz linux-d34306e28891257e3c4e8c172af19d70f84fa272.zip | |
tpm/st33zp24/spi: Remove useless use of memcpy.
An affectation is enough when copying 1 byte. Remove memcpy usage where
possible.
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/char/tpm/st33zp24/spi.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/drivers/char/tpm/st33zp24/spi.c b/drivers/char/tpm/st33zp24/spi.c index f42c4435895a..08ffbfe7588c 100644 --- a/drivers/char/tpm/st33zp24/spi.c +++ b/drivers/char/tpm/st33zp24/spi.c @@ -110,7 +110,6 @@ static int st33zp24_status_to_errno(u8 code) static int st33zp24_spi_send(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size) { - u8 data = 0; int total_length = 0, ret = 0; struct st33zp24_spi_phy *phy = phy_id; struct spi_device *dev = phy->spi_device; @@ -118,12 +117,8 @@ static int st33zp24_spi_send(void *phy_id, u8 tpm_register, u8 *tpm_data, u8 *rx_buf = phy->spi_xfer.rx_buf; /* Pre-Header */ - data = TPM_WRITE_DIRECTION | LOCALITY0; - memcpy(tx_buf + total_length, &data, sizeof(data)); - total_length++; - data = tpm_register; - memcpy(tx_buf + total_length, &data, sizeof(data)); - total_length++; + tx_buf[total_length++] = TPM_WRITE_DIRECTION | LOCALITY0; + tx_buf[total_length++] = tpm_register; if (tpm_size > 0 && tpm_register == TPM_DATA_FIFO) { tx_buf[total_length++] = tpm_size >> 8; @@ -156,7 +151,6 @@ static int st33zp24_spi_send(void *phy_id, u8 tpm_register, u8 *tpm_data, static int st33zp24_spi_read8_reg(void *phy_id, u8 tpm_register, u8 *tpm_data, int tpm_size) { - u8 data = 0; int total_length = 0, ret; struct st33zp24_spi_phy *phy = phy_id; struct spi_device *dev = phy->spi_device; @@ -164,12 +158,8 @@ static int st33zp24_spi_read8_reg(void *phy_id, u8 tpm_register, u8 *tpm_data, u8 *rx_buf = phy->spi_xfer.rx_buf; /* Pre-Header */ - data = LOCALITY0; - memcpy(tx_buf + total_length, &data, sizeof(data)); - total_length++; - data = tpm_register; - memcpy(tx_buf + total_length, &data, sizeof(data)); - total_length++; + tx_buf[total_length++] = LOCALITY0; + tx_buf[total_length++] = tpm_register; memset(&tx_buf[total_length], TPM_DUMMY_BYTE, phy->latency + tpm_size); |