/*
 * lib/reed_solomon/encode_rs.c
 *
 * Overview:
 *   Generic Reed Solomon encoder / decoder library
 *
 * Copyright 2002, Phil Karn, KA9Q
 * May be used under the terms of the GNU General Public License (GPL)
 *
 * Adaption to the kernel by Thomas Gleixner (tglx@linutronix.de)
 *
 * $Id: encode_rs.c,v 1.5 2005/11/07 11:14:59 gleixner Exp $
 *
 */

/* Generic data width independent code which is included by the
 * wrappers.
 * int encode_rsX (struct rs_control *rs, uintX_t *data, int len, uintY_t *par)
 */
{
	int i, j, pad;
	int nn = rs->nn;
	int nroots = rs->nroots;
	uint16_t *alpha_to = rs->alpha_to;
	uint16_t *index_of = rs->index_of;
	uint16_t *genpoly = rs->genpoly;
	uint16_t fb;
	uint16_t msk = (uint16_t) rs->nn;

	/* Check length parameter for validity */
	pad = nn - nroots - len;
	if (pad < 0 || pad >= nn)
		return -ERANGE;

	for (i = 0; i < len; i++) {
		fb = index_of[((((uint16_t) data[i])^invmsk) & msk) ^ par[0]];
		/* feedback term is non-zero */
		if (fb != nn) {
			for (j = 1; j < nroots; j++) {
				par[j] ^= alpha_to[rs_modnn(rs, fb +
							 genpoly[nroots - j])];
			}
		}
		/* Shift */
		memmove(&par[0], &par[1], sizeof(uint16_t) * (nroots - 1));
		if (fb != nn) {
			par[nroots - 1] = alpha_to[rs_modnn(rs,
							    fb + genpoly[0])];
		} else {
			par[nroots - 1] = 0;
		}
	}
	return 0;
}
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<tr><th>author</th><td>Sergei Shtylyov &lt;sergei.shtylyov@cogentembedded.com&gt;</td><td class='right'>2017-01-29 15:07:34 +0300</td></tr>
<tr><th>committer</th><td>David S. Miller &lt;davem@davemloft.net&gt;</td><td class='right'>2017-01-30 22:05:43 -0500</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/misc?h=nds-private-remove&amp;id=1a0bee6c1e788218fd1d141db320db970aace7f0'>1a0bee6c1e788218fd1d141db320db970aace7f0</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/misc?id=1a0bee6c1e788218fd1d141db320db970aace7f0'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=1a0bee6c1e788218fd1d141db320db970aace7f0'>46c4116bc8ef4a7df718516a648597d9e21c15f1</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/misc?h=nds-private-remove&amp;id=1a0bee6c1e788218fd1d141db320db970aace7f0'>drivers/usb/misc</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/misc?h=nds-private-remove&amp;id=63c190429020a9701b42887ac22c28f287f1762f'>63c190429020a9701b42887ac22c28f287f1762f</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/misc?h=nds-private-remove&amp;id=1a0bee6c1e788218fd1d141db320db970aace7f0&amp;id2=63c190429020a9701b42887ac22c28f287f1762f'>diff</a>)</td></tr></table>
<div class='commit-subject'>sh_eth: rename EESIPR bits</div><div class='commit-msg'>Since the  commit  b0ca2a21f769 ("sh_eth: Add support of SH7763 to sh_eth")
the *enum* declaring the EESIPR bits (interrupt mask) went out of sync with
the *enum* declaring the EESR bits (interrupt status) WRT  bit naming  and
formatting. I'd like to restore the consistency by using EESIPR as the bit
name prefix, renaming the *enum* to EESIPR_BIT, and (finally) renaming the
bits according to the available  Renesas SH77{34|63} manuals; additionally,
reconstruct  couple names using  the EESR bit declaration above...

Signed-off-by: Sergei Shtylyov &lt;sergei.shtylyov@cogentembedded.com&gt;
Signed-off-by: David S. Miller &lt;davem@davemloft.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=1a0bee6c1e788218fd1d141db320db970aace7f0'>Diffstat</a> (limited to 'drivers/usb/misc')</div><table summary='diffstat' class='diffstat'>