The patch titled w1: w1 temp: fix negative termperature calculation has been removed from the -mm tree. Its filename was w1-w1-temp-fix-negative-termperature-calculation.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: w1: w1 temp: fix negative termperature calculation From: Ian Dall <ian@xxxxxxxxxxxxxxxxxxxxx> Fix regression caused by commit 507e2fbaaacb6f164b4125b87c5002f95143174b ("w1: w1 temp calculation overflow fix") whereby negative temperatures for the DS18B20 are not converted properly. When the temperature exceeds 32767 milli-degrees the temperature overflows to -32768 millidegrees. These are both well within the -55 - +125 degree range for the sensor. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=12646 Signed-of-by: Ian Dall <ian@xxxxxxxxxxxxxxxxxxxxx> Cc: Evgeniy Polyakov <johnpol@xxxxxxxxxxx> Tested-by: Karsten Elfenbein <kelfe@xxxxxx> Cc: <stable@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/w1/slaves/w1_therm.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff -puN drivers/w1/slaves/w1_therm.c~w1-w1-temp-fix-negative-termperature-calculation drivers/w1/slaves/w1_therm.c --- a/drivers/w1/slaves/w1_therm.c~w1-w1-temp-fix-negative-termperature-calculation +++ a/drivers/w1/slaves/w1_therm.c @@ -115,9 +115,8 @@ static struct w1_therm_family_converter static inline int w1_DS18B20_convert_temp(u8 rom[9]) { - int t = ((s16)rom[1] << 8) | rom[0]; - t = t*1000/16; - return t; + s16 t = le16_to_cpup((__le16 *)rom); + return t*1000/16; } static inline int w1_DS18S20_convert_temp(u8 rom[9]) _ Patches currently in -mm which might be from ian@xxxxxxxxxxxxxxxxxxxxx are origin.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html