From 2f3408c7ef471dea10b8c89932f581c9c2eaf6ef Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 12 Jan 2015 15:45:31 +0200 Subject: [PATCH] drm/i915: fix build for CONFIG_BUG=n MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If CONFIG_BUG=n __WARN_printf won't be defined leading to the below build failure. The double underscores should have told us to steer clear of it anyway. drivers/gpu/drm/i915/intel_display.c: In function ‘assert_pll’: drivers/gpu/drm/i915/intel_display.c:1027:2: error: implicit declaration of function ‘__WARN_printf’ [-Werror=implicit-function-declaration] I915_STATE_WARN(cur_state != state, Use WARN(1, ...) instead. It handles CONFIG_BUG=n gracefully and, with the constant condition, a sane compiler should reduce it to __WARN_printf. This is a regression introduced by commit e2c719b75c8c186deb86570d8466df9e9eff919b Author: Rob Clark Date: Mon Dec 15 13:56:32 2014 -0500 drm/i915: tame the chattermouth (v2) Reported-by: Jim Davis Reference: http://mid.gmane.org/CA+r1ZhgHTi7bS2irhtuSUs9aO=Br1dumN8=oAOeaMJDZ_ZhwBw@mail.gmail.com Cc: Rob Clark Signed-off-by: Jani Nikula Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_drv.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index e008fa0c58da..66f0c607dbef 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -83,7 +83,7 @@ int __ret_warn_on = !!(condition); \ if (unlikely(__ret_warn_on)) { \ if (i915.verbose_state_checks) \ - __WARN_printf(format); \ + WARN(1, format); \ else \ DRM_ERROR(format); \ } \ @@ -94,7 +94,7 @@ int __ret_warn_on = !!(condition); \ if (unlikely(__ret_warn_on)) { \ if (i915.verbose_state_checks) \ - __WARN_printf("WARN_ON(" #condition ")\n"); \ + WARN(1, "WARN_ON(" #condition ")\n"); \ else \ DRM_ERROR("WARN_ON(" #condition ")\n"); \ } \ -- GitLab