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wifi_drv: fix find_next_bit function

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Among others, this function is used in the for_each_set_big() macro,
which is used when configuring the data rate tables. Therefore, this
fixes observed performance issues.

Fixes #1439.
This commit is contained in:
Josef Söntgen 2015-03-04 17:18:31 +01:00 committed by Christian Helmuth
parent f94176af3f
commit 7923b287d9
1 changed files with 6 additions and 12 deletions
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18
repos/dde_linux/src/lib/wifi/lxcc_emul.cc
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@ -1486,20 +1486,14 @@ void put_page(struct page *page)
unsigned long find_next_bit(const unsigned long *addr, unsigned long size,
unsigned long offset)
{
unsigned long i, j;
unsigned long i = offset / BITS_PER_LONG;
offset -= (i * BITS_PER_LONG);
for (i = offset; i < (size / BITS_PER_LONG); i++)
if (addr[i] == ~0UL)
break;
for (; offset < size; offset++)
if (addr[i] & (1UL << offset))
return offset;
if (i == size)
return size;
for (j = 0; j < BITS_PER_LONG; j++)
if ((addr[i]) & (1UL << j))
break;
return (i * BITS_PER_LONG) + j;
return size;
}