3.16.54-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Arnd Bergmann <arnd@xxxxxxxx> commit 67a3b63a54cbe18944191f43d644686731cf30c7 upstream. gcc-8 points out a condition that almost certainly doesn't do what the author had in mind: drivers/gpu/drm/gma500/mdfld_intel_display.c: In function 'mdfldWaitForPipeEnable': drivers/gpu/drm/gma500/mdfld_intel_display.c:102:37: error: bitwise comparison always evaluates to false [-Werror=tautological-compare] This changes it to a simple bit mask operation to check whether the bit is set. Fixes: 026abc333205 ("gma500: initial medfield merge") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20170905074741.435324-1-arnd@xxxxxxxx Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx> --- drivers/gpu/drm/gma500/mdfld_intel_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/gma500/mdfld_intel_display.c +++ b/drivers/gpu/drm/gma500/mdfld_intel_display.c @@ -99,7 +99,7 @@ void mdfldWaitForPipeEnable(struct drm_d /* Wait for for the pipe enable to take effect. */ for (count = 0; count < COUNT_MAX; count++) { temp = REG_READ(map->conf); - if ((temp & PIPEACONF_PIPE_STATE) == 1) + if (temp & PIPEACONF_PIPE_STATE) break; } }