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From:   Arnd Bergmann <arnd@kernel.org>
To:     Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
        David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Andi Shyti <andi.shyti@linux.intel.com>
Cc:     Arnd Bergmann <arnd@arndb.de>,
        Matt Roper <matthew.d.roper@intel.com>,
        Lucas De Marchi <lucas.demarchi@intel.com>,
        Imre Deak <imre.deak@intel.com>,
        Alan Previn <alan.previn.teres.alexis@intel.com>,
        Anshuman Gupta <anshuman.gupta@intel.com>,
        intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH] drm/i915: make i915_drm_client_fdinfo() reference conditional again
Date:   Fri, 16 Jun 2023 11:31:47 +0200
Message-Id: <20230616093158.3568480-1-arnd@kernel.org>
MIME-Version: 1.0
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Precedence: bulk

From: Arnd Bergmann <arnd@arndb.de>

The function is only defined if CONFIG_PROC_FS is enabled:

ld.lld: error: undefined symbol: i915_drm_client_fdinfo
>>> referenced by i915_driver.c
>>>               drivers/gpu/drm/i915/i915_driver.o:(i915_drm_driver) in archive vmlinux.a

Use the PTR_IF() helper to make the reference NULL otherwise.

Fixes: e894b724c316d ("drm/i915: Use the fdinfo helper")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/gpu/drm/i915/i915_driver.c     | 2 +-
 drivers/gpu/drm/i915/i915_drm_client.h | 2 --
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 75cbc43b326dd..0ad0c5885ec27 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -1816,7 +1816,7 @@ static const struct drm_driver i915_drm_driver = {
 	.open = i915_driver_open,
 	.lastclose = i915_driver_lastclose,
 	.postclose = i915_driver_postclose,
-	.show_fdinfo = i915_drm_client_fdinfo,
+	.show_fdinfo = PTR_IF(IS_ENABLED(CONFIG_PROC_FS), i915_drm_client_fdinfo),
 
 	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
diff --git a/drivers/gpu/drm/i915/i915_drm_client.h b/drivers/gpu/drm/i915/i915_drm_client.h
index 4c18b99e10a4e..67816c912bca1 100644
--- a/drivers/gpu/drm/i915/i915_drm_client.h
+++ b/drivers/gpu/drm/i915/i915_drm_client.h
@@ -47,8 +47,6 @@ static inline void i915_drm_client_put(struct i915_drm_client *client)
 
 struct i915_drm_client *i915_drm_client_alloc(void);
 
-#ifdef CONFIG_PROC_FS
 void i915_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file);
-#endif
 
 #endif /* !__I915_DRM_CLIENT_H__ */
-- 
2.39.2