3.5.7.10 -stable review patch. If anyone has any objections, please let me know.
------------------ From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <[email protected]> commit 2e1253d640eb7f8707d2591c93097c1e9f9c71d5 upstream. When calculating "offset" for final RSSI calibration we're using numbers bigger than s8 can hold. We have for example: offset[j] = 232 - poll_results[j]; formula. If poll_results[j] is small enough (it usually is) we treat number's bit as a sign bit. For example 232 - 1 becomes: 0xE8 - 0x1 = 0xE7, which is not 231 but -25. This code was introduced in e0c9a0219a8f542e3946fe972a68aacf8c3f906c and caused stability regression on some cards, for ex. BCM4322. Signed-off-by: Rafał Miłecki <[email protected]> Signed-off-by: John W. Linville <[email protected]> Signed-off-by: Luis Henriques <[email protected]> --- drivers/net/wireless/b43/phy_n.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c index 5ae0b6a..6be2f73 100644 --- a/drivers/net/wireless/b43/phy_n.c +++ b/drivers/net/wireless/b43/phy_n.c @@ -1320,7 +1320,7 @@ static void b43_nphy_rev3_rssi_cal(struct b43_wldev *dev) u16 clip_off[2] = { 0xFFFF, 0xFFFF }; u8 vcm_final = 0; - s8 offset[4]; + s32 offset[4]; s32 results[8][4] = { }; s32 results_min[4] = { }; s32 poll_results[4] = { }; @@ -1487,7 +1487,7 @@ static void b43_nphy_rev2_rssi_cal(struct b43_wldev *dev, u8 type) u8 regs_save_radio[2]; u16 regs_save_phy[2]; - s8 offset[4]; + s32 offset[4]; u8 core; u8 rail; -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
