3.19-stable review patch. If anyone has any objections, please let me know.
------------------ From: Christian Borntraeger <[email protected]> commit c5b19946eb76c67566aae6a84bf2b10ad59295ea upstream. Commit 927609d622a3 ("kernel: tighten rules for ACCESS ONCE") results in sparse warnings like "Using plain integer as NULL pointer" - Let's add a type cast to the dummy assignment. To avoid warnings lik "sparse: warning: cast to restricted __hc32" we also use __force on that cast. Fixes: 927609d622a3 ("kernel: tighten rules for ACCESS ONCE") Signed-off-by: Christian Borntraeger <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- include/linux/compiler.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -461,7 +461,7 @@ static __always_inline void __write_once * If possible use READ_ONCE/ASSIGN_ONCE instead. */ #define __ACCESS_ONCE(x) ({ \ - __maybe_unused typeof(x) __var = 0; \ + __maybe_unused typeof(x) __var = (__force typeof(x)) 0; \ (volatile typeof(x) *)&(x); }) #define ACCESS_ONCE(x) (*__ACCESS_ONCE(x)) -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
