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Subject[PATCH]kconfig:mconf: avoid unneeded memcpy
In function update_text we assign jump key label
per page (1)-(9) cycled, and use three space char
as the header after k exceed JUMP_NB.

We don't need to call memcpy with header of three
space char, because it changes nothing, it just
copy what was there.

I don't think we need to clear old jump key label in
current implementation, I can't image out any case
which a search result could change its jump key label,
unless user search new string, but then we will re-assign
jump key label, and it will be fix after that.

Signed-off-by: Wang YanQing <udknight@gmail.com>
---
scripts/kconfig/mconf.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 2c39631..ff9d737 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -379,11 +379,8 @@ static void update_text(char *buf, size_t start, size_t end, void *_data)
data->keys[k] = key;
data->targets[k] = pos->target;
k++;
- } else {
- sprintf(header, " ");
+ memcpy(buf + pos->offset, header, sizeof(header) - 1);
}
-
- memcpy(buf + pos->offset, header, sizeof(header) - 1);
}
}
data->keys[k] = 0;
--
1.7.12.4.dirty

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