From: Arnd Bergmann Date: Mon, 18 Mar 2019 16:35:11 +0000 (+0100) Subject: mlxsw: core: mlxsw: core: avoid -Wint-in-bool-context warning X-Git-Tag: v5.15~6702^2~43 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7442c483b963dbee7d1b655cbad99c727c047828;p=platform%2Fkernel%2Flinux-starfive.git mlxsw: core: mlxsw: core: avoid -Wint-in-bool-context warning A recently added function in mlxsw triggers a harmless compiler warning: In file included from drivers/net/ethernet/mellanox/mlxsw/core.h:17, from drivers/net/ethernet/mellanox/mlxsw/core_env.c:7: drivers/net/ethernet/mellanox/mlxsw/core_env.c: In function 'mlxsw_env_module_temp_thresholds_get': drivers/net/ethernet/mellanox/mlxsw/reg.h:8015:45: error: '*' in boolean context, suggest '&&' instead [-Werror=int-in-bool-context] #define MLXSW_REG_MTMP_TEMP_TO_MC(val) (val * 125) ~~~~~^~~~~~ drivers/net/ethernet/mellanox/mlxsw/core_env.c:116:8: note: in expansion of macro 'MLXSW_REG_MTMP_TEMP_TO_MC' if (!MLXSW_REG_MTMP_TEMP_TO_MC(module_temp)) { ^~~~~~~~~~~~~~~~~~~~~~~~~ The warning is normally disabled, but it would be nice to enable it to find real bugs, and there are no other known instances at the moment. Replace the negation with a zero-comparison, which also matches the comment above it. Fixes: d93c19a1d95c ("mlxsw: core: Add API for QSFP module temperature thresholds reading") Signed-off-by: Arnd Bergmann Acked-by: Jiri Pirko Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/mellanox/mlxsw/core_env.c b/drivers/net/ethernet/mellanox/mlxsw/core_env.c index 7a15e93..c1c1965 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/core_env.c +++ b/drivers/net/ethernet/mellanox/mlxsw/core_env.c @@ -113,7 +113,7 @@ int mlxsw_env_module_temp_thresholds_get(struct mlxsw_core *core, int module, return 0; default: /* Do not consider thresholds for zero temperature. */ - if (!MLXSW_REG_MTMP_TEMP_TO_MC(module_temp)) { + if (MLXSW_REG_MTMP_TEMP_TO_MC(module_temp) == 0) { *temp = 0; return 0; }