Hello Rafał Miłecki,
The patch 6f98e62a9f1b: "b43: update cordic code to match current
specs" from Jan 25, 2010, leads to the following static checker
warning:
drivers/net/wireless/broadcom/b43/phy_lp.c:1803 lpphy_start_tx_tone()
warn: mask and shift to zero
drivers/net/wireless/broadcom/b43/phy_lp.c
1800 for (i = 0; i < samples; i++) {
1801 sample = b43_cordic(angle);
1802 angle += rotation;
1803 buf[i] = CORDIC_CONVERT((sample.i * max) & 0xFF) << 8;
1804 buf[i] |= CORDIC_CONVERT((sample.q * max) & 0xFF);
The CORDIC_CONVERT() macro is a bit complicated but I made a small test
program to see how it worked and I believe it just sets buf[i] to zero.
1805 }
1806
1807 b43_lptab_write_bulk(dev, B43_LPTAB16(5, 0), samples, buf);
regards,
dan carpenter
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