static int chksum_update(struct shash_desc *desc, const u8 *data,
			 unsigned int length)
{
	struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);

	ctx->crc = crc_t10dif_generic(ctx->crc, data, length);
	return 0;
}
Example #2
0
static int __chksum_finup(__u16 *crcp, const u8 *data, unsigned int len,
			u8 *out)
{
	if (irq_fpu_usable()) {
		kernel_fpu_begin();
		*(__u16 *)out = crc_t10dif_pcl(*crcp, data, len);
		kernel_fpu_end();
	} else
		*(__u16 *)out = crc_t10dif_generic(*crcp, data, len);
	return 0;
}
Example #3
0
static int chksum_update(struct shash_desc *desc, const u8 *data,
			 unsigned int length)
{
	struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);

	if (irq_fpu_usable()) {
		kernel_fpu_begin();
		ctx->crc = crc_t10dif_pcl(ctx->crc, data, length);
		kernel_fpu_end();
	} else
		ctx->crc = crc_t10dif_generic(ctx->crc, data, length);
	return 0;
}
static int __chksum_finup(__u16 *crcp, const u8 *data, unsigned int len,
			u8 *out)
{
	*(__u16 *)out = crc_t10dif_generic(*crcp, data, len);
	return 0;
}