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hw/sd/sdcard: Constify sd_crc*()'s message argument

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CRC functions don't modify the buffer argument,
make it const.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200630133912.9428-14-f4bug@amsat.org>
This commit is contained in:
Philippe Mathieu-Daudé 2018-05-02 16:45:37 -03:00
parent ef6dd5f5c4
commit aecaa05922
1 changed files with 4 additions and 4 deletions
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8
hw/sd/sd.c
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@ -254,11 +254,11 @@ static const int sd_cmd_class[SDMMC_CMD_MAX] = {
7, 7, 10, 7, 9, 9, 9, 8, 8, 10, 8, 8, 8, 8, 8, 8, 7, 7, 10, 7, 9, 9, 9, 8, 8, 10, 8, 8, 8, 8, 8, 8,
}; };
static uint8_t sd_crc7(void *message, size_t width) static uint8_t sd_crc7(const void *message, size_t width)
{ {
int i, bit; int i, bit;
uint8_t shift_reg = 0x00; uint8_t shift_reg = 0x00;
uint8_t *msg = (uint8_t *) message; const uint8_t *msg = (const uint8_t *)message;
for (i = 0; i < width; i ++, msg ++) for (i = 0; i < width; i ++, msg ++)
for (bit = 7; bit >= 0; bit --) { for (bit = 7; bit >= 0; bit --) {
@ -270,11 +270,11 @@ static uint8_t sd_crc7(void *message, size_t width)
return shift_reg; return shift_reg;
} }
static uint16_t sd_crc16(void *message, size_t width) static uint16_t sd_crc16(const void *message, size_t width)
{ {
int i, bit; int i, bit;
uint16_t shift_reg = 0x0000; uint16_t shift_reg = 0x0000;
uint16_t *msg = (uint16_t *) message; const uint16_t *msg = (const uint16_t *)message;
width <<= 1; width <<= 1;
for (i = 0; i < width; i ++, msg ++) for (i = 0; i < width; i ++, msg ++)