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Date: Mon, 19 Sep 2016 14:51:52 +0200 From: Arnd Bergmann <arnd@...db.de> To: Jani Nikula <jani.nikula@...el.com>, David Airlie <airlied@...ux.ie> Cc: Arnd Bergmann <arnd@...db.de>, Daniel Vetter <daniel.vetter@...ll.ch>, Dave Airlie <airlied@...il.com>, Mika Kahola <mika.kahola@...el.com>, Ville Syrjälä <ville.syrjala@...ux.intel.com>, Lyude <cpaul@...hat.com>, dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org Subject: [PATCH] drm: include linux/seq_file.h as needed The addition of the debugfs info created references to seq_puts() and seq_printf(), but relied on the debugfs header to be included implicitly, which apparently doesn't happen all the time, as seen from this randconfig build output: drivers/gpu/drm/drm_dp_helper.c: In function 'drm_dp_downstream_debug': drivers/gpu/drm/drm_dp_helper.c:552:2: error: implicit declaration of function 'seq_printf' [-Werror=implicit-function-declaration] drivers/gpu/drm/drm_dp_helper.c:560:3: error: implicit declaration of function 'seq_puts' [-Werror=implicit-function-declaration] Adding the extra include brings back a clean build. Fixes: 80209e5f2c42 ("drm: Add DP branch device info on debugfs") Signed-off-by: Arnd Bergmann <arnd@...db.de> --- drivers/gpu/drm/drm_dp_helper.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c index a07adf0a07db..3e6fe82c6d64 100644 --- a/drivers/gpu/drm/drm_dp_helper.c +++ b/drivers/gpu/drm/drm_dp_helper.c @@ -27,6 +27,7 @@ #include <linux/errno.h> #include <linux/sched.h> #include <linux/i2c.h> +#include <linux/seq_file.h> #include <drm/drm_dp_helper.h> #include <drm/drmP.h> -- 2.9.0
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