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Use memcpy instead of raw casts in sdmmc.c
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b4eeddd7e1
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2bc2fe1452
1 changed files with 2 additions and 5 deletions
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@ -1274,7 +1274,7 @@ static int sdmmc_handle_cpu_transfer(struct mmc *mmc, uint16_t blocks, bool is_w
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// Handle unaligned buffers
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// Handle unaligned buffers
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uint32_t w;
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uint32_t w;
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uint8_t *data = (uint8_t *)buffer;
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uint8_t *data = (uint8_t *)buffer;
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w = data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
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memcpy(&w, data, 4);
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mmc->regs->buffer = w;
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mmc->regs->buffer = w;
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} else {
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} else {
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mmc->regs->buffer = *buffer;
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mmc->regs->buffer = *buffer;
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@ -1284,10 +1284,7 @@ static int sdmmc_handle_cpu_transfer(struct mmc *mmc, uint16_t blocks, bool is_w
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// Handle unaligned buffers
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// Handle unaligned buffers
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uint32_t w = mmc->regs->buffer;
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uint32_t w = mmc->regs->buffer;
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uint8_t *data = (uint8_t *)buffer;
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uint8_t *data = (uint8_t *)buffer;
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data[0] = w & 0xFF;
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memcpy(&w, data, 4);
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data[1] = (w >> 8) & 0xFF;
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data[2] = (w >> 16) & 0xFF;
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data[3] = (w >> 24) & 0xFF;
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} else {
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} else {
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*buffer = mmc->regs->buffer;
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*buffer = mmc->regs->buffer;
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}
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}
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