Root/package/mac80211/patches/022-remove_crc8_and_cordic.patch

1--- a/compat/Makefile
2+++ b/compat/Makefile
3@@ -36,8 +36,6 @@ compat-$(CONFIG_COMPAT_KERNEL_2_6_39) +=
4 compat-$(CONFIG_COMPAT_KERNEL_3_0) += compat-3.0.o
5 compat-$(CONFIG_COMPAT_KERNEL_3_2) += compat-3.2.o
6 
7-compat-$(CONFIG_COMPAT_CORDIC) += cordic.o
8-compat-$(CONFIG_COMPAT_CRC8) += crc8.o
9 
10 ifndef CONFIG_64BIT
11 ifndef CONFIG_GENERIC_ATOMIC64
12--- a/include/linux/cordic.h
13+++ /dev/null
14@@ -1,48 +0,0 @@
15-/*
16- * Copyright (c) 2011 Broadcom Corporation
17- *
18- * Permission to use, copy, modify, and/or distribute this software for any
19- * purpose with or without fee is hereby granted, provided that the above
20- * copyright notice and this permission notice appear in all copies.
21- *
22- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
23- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
24- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
25- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
26- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
27- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
28- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
29- */
30-#ifndef __CORDIC_H_
31-#define __CORDIC_H_
32-
33-#include <linux/types.h>
34-
35-/**
36- * struct cordic_iq - i/q coordinate.
37- *
38- * @i: real part of coordinate (in phase).
39- * @q: imaginary part of coordinate (quadrature).
40- */
41-struct cordic_iq {
42- s32 i;
43- s32 q;
44-};
45-
46-/**
47- * cordic_calc_iq() - calculates the i/q coordinate for given angle.
48- *
49- * @theta: angle in degrees for which i/q coordinate is to be calculated.
50- * @coord: function output parameter holding the i/q coordinate.
51- *
52- * The function calculates the i/q coordinate for a given angle using
53- * cordic algorithm. The coordinate consists of a real (i) and an
54- * imaginary (q) part. The real part is essentially the cosine of the
55- * angle and the imaginary part is the sine of the angle. The returned
56- * values are scaled by 2^16 for precision. The range for theta is
57- * for -180 degrees to +180 degrees. Passed values outside this range are
58- * converted before doing the actual calculation.
59- */
60-struct cordic_iq cordic_calc_iq(s32 theta);
61-
62-#endif /* __CORDIC_H_ */
63--- a/include/linux/crc8.h
64+++ /dev/null
65@@ -1,101 +0,0 @@
66-/*
67- * Copyright (c) 2011 Broadcom Corporation
68- *
69- * Permission to use, copy, modify, and/or distribute this software for any
70- * purpose with or without fee is hereby granted, provided that the above
71- * copyright notice and this permission notice appear in all copies.
72- *
73- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
74- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
75- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
76- * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
77- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
78- * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
79- * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
80- */
81-#ifndef __CRC8_H_
82-#define __CRC8_H_
83-
84-#include <linux/types.h>
85-
86-/* see usage of this value in crc8() description */
87-#define CRC8_INIT_VALUE 0xFF
88-
89-/*
90- * Return value of crc8() indicating valid message+crc. This is true
91- * if a CRC is inverted before transmission. The CRC computed over the
92- * whole received bitstream is _table[x], where x is the bit pattern
93- * of the modification (almost always 0xff).
94- */
95-#define CRC8_GOOD_VALUE(_table) (_table[0xFF])
96-
97-/* required table size for crc8 algorithm */
98-#define CRC8_TABLE_SIZE 256
99-
100-/* helper macro assuring right table size is used */
101-#define DECLARE_CRC8_TABLE(_table) \
102- static u8 _table[CRC8_TABLE_SIZE]
103-
104-/**
105- * crc8_populate_lsb - fill crc table for given polynomial in regular bit order.
106- *
107- * @table: table to be filled.
108- * @polynomial: polynomial for which table is to be filled.
109- *
110- * This function fills the provided table according the polynomial provided for
111- * regular bit order (lsb first). Polynomials in CRC algorithms are typically
112- * represented as shown below.
113- *
114- * poly = x^8 + x^7 + x^6 + x^4 + x^2 + 1
115- *
116- * For lsb first direction x^7 maps to the lsb. So the polynomial is as below.
117- *
118- * - lsb first: poly = 10101011(1) = 0xAB
119- */
120-void crc8_populate_lsb(u8 table[CRC8_TABLE_SIZE], u8 polynomial);
121-
122-/**
123- * crc8_populate_msb - fill crc table for given polynomial in reverse bit order.
124- *
125- * @table: table to be filled.
126- * @polynomial: polynomial for which table is to be filled.
127- *
128- * This function fills the provided table according the polynomial provided for
129- * reverse bit order (msb first). Polynomials in CRC algorithms are typically
130- * represented as shown below.
131- *
132- * poly = x^8 + x^7 + x^6 + x^4 + x^2 + 1
133- *
134- * For msb first direction x^7 maps to the msb. So the polynomial is as below.
135- *
136- * - msb first: poly = (1)11010101 = 0xD5
137- */
138-void crc8_populate_msb(u8 table[CRC8_TABLE_SIZE], u8 polynomial);
139-
140-/**
141- * crc8() - calculate a crc8 over the given input data.
142- *
143- * @table: crc table used for calculation.
144- * @pdata: pointer to data buffer.
145- * @nbytes: number of bytes in data buffer.
146- * @crc: previous returned crc8 value.
147- *
148- * The CRC8 is calculated using the polynomial given in crc8_populate_msb()
149- * or crc8_populate_lsb().
150- *
151- * The caller provides the initial value (either %CRC8_INIT_VALUE
152- * or the previous returned value) to allow for processing of
153- * discontiguous blocks of data. When generating the CRC the
154- * caller is responsible for complementing the final return value
155- * and inserting it into the byte stream. When validating a byte
156- * stream (including CRC8), a final return value of %CRC8_GOOD_VALUE
157- * indicates the byte stream data can be considered valid.
158- *
159- * Reference:
160- * "A Painless Guide to CRC Error Detection Algorithms", ver 3, Aug 1993
161- * Williams, Ross N., ross<at>ross.net
162- * (see URL http://www.ross.net/crc/download/crc_v3.txt).
163- */
164-u8 crc8(const u8 table[CRC8_TABLE_SIZE], u8 *pdata, size_t nbytes, u8 crc);
165-
166-#endif /* __CRC8_H_ */
167

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