crypto/nx/nx-842.c

88 			unsigned int slen, unsigned int dlen)
92 	if (p->oremain < dlen)
97 	p->out += dlen;
98 	p->oremain -= dlen;
99 	p->ototal += dlen;
165 	unsigned int slen = p->iremain, dlen = p->oremain, tmplen;
174 	if (p->oremain == 0 || hdrsize + c->minimum > dlen)
195 	dlen -= hdrsize;
200 		dlen -= dskip;
202 	if (dlen % c->multiple)
203 		dlen = round_down(dlen, c->multiple);
204 	if (dlen < c->minimum) {
207 		dlen = min(p->oremain, BOUNCE_BUFFER_SIZE);
208 		dlen = round_down(dlen, c->multiple);
210 		pr_debug("using comp dbounce buffer, len %x\n", dlen);
212 	if (dlen > c->maximum)
213 		dlen = c->maximum;
215 	tmplen = dlen;
218 		dlen = tmplen; /* reset dlen, if we're retrying */
219 		ret = ctx->driver->compress(src, slen, dst, &dlen, ctx->wmem);
232 		memcpy(p->out + dskip, dst, dlen);
235 	g->compressed_length = cpu_to_be32(dlen);
243 	pr_debug("compress slen %x ignore %x dlen %x padding %x\n",
244 		 slen, *ignore, dlen, dskip);
246 	return update_param(p, slen, dskip + dlen);
251 			  u8 *dst, unsigned int *dlen)
269 	p.oremain = *dlen;
272 	*dlen = 0;
327 	*dlen = p.ototal;
329 	pr_debug("compress total slen %x dlen %x\n", slen, *dlen);
345 	unsigned int dlen = p->oremain, tmplen;
383 	if (dlen % c->multiple)
384 		dlen = round_down(dlen, c->multiple);
385 	if (dlen < required_len || (u64)dst % c->alignment) {
387 		dlen = min(required_len, BOUNCE_BUFFER_SIZE);
388 		pr_debug("using decomp dbounce buffer, len %x\n", dlen);
390 	if (dlen < c->minimum)
392 	if (dlen > c->maximum)
393 		dlen = c->maximum;
395 	tmplen = dlen;
398 		dlen = tmplen; /* reset dlen, if we're retrying */
399 		ret = ctx->driver->decompress(src, slen, dst, &dlen, ctx->wmem);
408 		dlen = p->oremain;
409 		if (dlen < required_len) { /* have ignore bytes */
411 			dlen = BOUNCE_BUFFER_SIZE;
414 		ret = sw842_decompress(src, slen, dst, &dlen);
421 	dlen -= ignore;
426 		memcpy(p->out, dst, dlen);
428 	pr_debug("decompress slen %x padding %x dlen %x ignore %x\n",
429 		 slen, padding, dlen, ignore);
431 	return update_param(p, slen + padding, dlen);
436 			    u8 *dst, unsigned int *dlen)
450 	p.oremain = *dlen;
453 	*dlen = 0;
508 	*dlen = p.ototal;
510 	pr_debug("decompress total slen %x dlen %x\n", slen, *dlen);