On Fri, Nov 28, 2025 at 08:38:16PM +0800, Gui-Dong Han wrote:
The macros FAN_FROM_REG and TEMP_FROM_REG evaluate their arguments multiple times. When used in lockless contexts involving shared driver data, this causes Time-of-Check to Time-of-Use (TOCTOU) race conditions.
Convert the macros to static functions. This guarantees that arguments are evaluated only once (pass-by-value), preventing the race conditions.
Adhere to the principle of minimal changes by only converting macros that evaluate arguments multiple times and are used in lockless contexts.
Link: https://lore.kernel.org/all/CALbr=LYJ_ehtp53HXEVkSpYoub+XYSTU8Rg=o1xxMJ8=5z8... Fixes: 85f03bccd6e0 ("hwmon: Add support for Winbond W83L786NG/NR") Cc: stable@vger.kernel.org Signed-off-by: Gui-Dong Han hanguidong02@gmail.com
Applied.
Thanks, Guenter