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# BCH support is selected if needed
166
config BCH_CONST_PARAMS
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Drivers may select this option to force specific constant
170
values for parameters 'm' (Galois field order) and 't'
171
(error correction capability). Those specific values must
172
be set by declaring default values for symbols BCH_CONST_M
174
Doing so will enable extra compiler optimizations,
175
improving encoding and decoding performance up to 2x for
176
usual (m,t) values (typically such that m*t < 200).
177
When this option is selected, the BCH library supports
178
only a single (m,t) configuration. This is mainly useful
179
for NAND flash board drivers requiring known, fixed BCH
186
Constant value for Galois field order 'm'. If 'k' is the
187
number of data bits to protect, 'm' should be chosen such
188
that (k + m*t) <= 2**m - 1.
189
Drivers should declare a default value for this symbol if
190
they select option BCH_CONST_PARAMS.
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Constant value for error correction capability in bits 't'.
196
Drivers should declare a default value for this symbol if
197
they select option BCH_CONST_PARAMS.
158
200
# Textsearch support is select'ed if needed
160
202
config TEXTSEARCH
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bool "Averaging functions"
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This option is provided for the case where no in-kernel-tree
269
modules require averaging functions, but a module built outside
270
the kernel tree does. Such modules that use library averaging
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functions require Y here.