4.9-stable review patch. If anyone has any objections, please let me know.
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From: Arnd Bergmann arnd@arndb.de
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@arndb.de Signed-off-by: Daniel Vetter daniel.vetter@ffwll.ch Link: https://patchwork.freedesktop.org/patch/msgid/20170905074741.435324-1-arnd@a... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- 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; } }