drm/i915: Drop extern qualifiers from header function prototypes

Follow dim checkpatch recommendation so it doesn't complain on that now
and again on header file modifications.

v2: drop testing leftover (Chris)
Signed-off-by: Janusz Krzysztofik <janusz.krzysztofik@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20190712112429.740-2-janusz.krzysztofik@linux.intel.com

drivers/gpu/drm/i915/gem/i915_gem_object.h

@@ -81,7 +81,7 @@ i915_gem_object_lookup(struct drm_file *file, u32 handle)
 }
 
 __deprecated
-extern struct drm_gem_object *
+struct drm_gem_object *
 drm_gem_object_lookup(struct drm_file *file, u32 handle);
 
 __attribute__((nonnull))

drivers/gpu/drm/i915/gvt/gtt.h

@@ -205,17 +205,18 @@ struct intel_vgpu_gtt {
 	struct intel_vgpu_scratch_pt scratch_pt[GTT_TYPE_MAX];
 };
 
-extern int intel_vgpu_init_gtt(struct intel_vgpu *vgpu);
-extern void intel_vgpu_clean_gtt(struct intel_vgpu *vgpu);
+int intel_vgpu_init_gtt(struct intel_vgpu *vgpu);
+void intel_vgpu_clean_gtt(struct intel_vgpu *vgpu);
 void intel_vgpu_reset_ggtt(struct intel_vgpu *vgpu, bool invalidate_old);
 void intel_vgpu_invalidate_ppgtt(struct intel_vgpu *vgpu);
 
-extern int intel_gvt_init_gtt(struct intel_gvt *gvt);
+int intel_gvt_init_gtt(struct intel_gvt *gvt);
 void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu);
-extern void intel_gvt_clean_gtt(struct intel_gvt *gvt);
+void intel_gvt_clean_gtt(struct intel_gvt *gvt);
 
-extern struct intel_vgpu_mm *intel_gvt_find_ppgtt_mm(struct intel_vgpu *vgpu,
-		int page_table_level, void *root_entry);
+struct intel_vgpu_mm *intel_gvt_find_ppgtt_mm(struct intel_vgpu *vgpu,
+					      int page_table_level,
+					      void *root_entry);
 
 struct intel_vgpu_oos_page {
 	struct intel_vgpu_ppgtt_spt *spt;

drivers/gpu/drm/i915/i915_drv.h

@@ -2390,19 +2390,17 @@ __i915_printk(struct drm_i915_private *dev_priv, const char *level,
 	__i915_printk(dev_priv, KERN_ERR, fmt, ##__VA_ARGS__)
 
 #ifdef CONFIG_COMPAT
-extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
-			      unsigned long arg);
+long i915_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
 #else
 #define i915_compat_ioctl NULL
 #endif
 extern const struct dev_pm_ops i915_pm_ops;
 
-extern int i915_driver_load(struct pci_dev *pdev,
-			    const struct pci_device_id *ent);
-extern void i915_driver_unload(struct drm_device *dev);
+int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent);
+void i915_driver_unload(struct drm_device *dev);
 
-extern void intel_engine_init_hangcheck(struct intel_engine_cs *engine);
-extern void intel_hangcheck_init(struct drm_i915_private *dev_priv);
+void intel_engine_init_hangcheck(struct intel_engine_cs *engine);
+void intel_hangcheck_init(struct drm_i915_private *dev_priv);
 int vlv_force_gfx_clock(struct drm_i915_private *dev_priv, bool on);
 
 u32 intel_calculate_mcr_s_ss_select(struct drm_i915_private *dev_priv);
@@ -2672,14 +2670,14 @@ int intel_engine_cmd_parser(struct intel_engine_cs *engine,
 			    bool is_master);
 
 /* i915_perf.c */
-extern void i915_perf_init(struct drm_i915_private *dev_priv);
-extern void i915_perf_fini(struct drm_i915_private *dev_priv);
-extern void i915_perf_register(struct drm_i915_private *dev_priv);
-extern void i915_perf_unregister(struct drm_i915_private *dev_priv);
+void i915_perf_init(struct drm_i915_private *dev_priv);
+void i915_perf_fini(struct drm_i915_private *dev_priv);
+void i915_perf_register(struct drm_i915_private *dev_priv);
+void i915_perf_unregister(struct drm_i915_private *dev_priv);
 
 /* i915_suspend.c */
-extern int i915_save_state(struct drm_i915_private *dev_priv);
-extern int i915_restore_state(struct drm_i915_private *dev_priv);
+int i915_save_state(struct drm_i915_private *dev_priv);
+int i915_restore_state(struct drm_i915_private *dev_priv);
 
 /* i915_sysfs.c */
 void i915_setup_sysfs(struct drm_i915_private *dev_priv);
@@ -2693,22 +2691,21 @@ mkwrite_device_info(struct drm_i915_private *dev_priv)
 }
 
 /* modesetting */
-extern void intel_modeset_init_hw(struct drm_device *dev);
-extern int intel_modeset_init(struct drm_device *dev);
-extern void intel_modeset_cleanup(struct drm_device *dev);
-extern int intel_modeset_vga_set_state(struct drm_i915_private *dev_priv,
-				       bool state);
-extern void intel_display_resume(struct drm_device *dev);
-extern void i915_redisable_vga(struct drm_i915_private *dev_priv);
-extern void i915_redisable_vga_power_on(struct drm_i915_private *dev_priv);
-extern void intel_init_pch_refclk(struct drm_i915_private *dev_priv);
+void intel_modeset_init_hw(struct drm_device *dev);
+int intel_modeset_init(struct drm_device *dev);
+void intel_modeset_cleanup(struct drm_device *dev);
+int intel_modeset_vga_set_state(struct drm_i915_private *dev_priv, bool state);
+void intel_display_resume(struct drm_device *dev);
+void i915_redisable_vga(struct drm_i915_private *dev_priv);
+void i915_redisable_vga_power_on(struct drm_i915_private *dev_priv);
+void intel_init_pch_refclk(struct drm_i915_private *dev_priv);
 
 int i915_reg_read_ioctl(struct drm_device *dev, void *data,
 			struct drm_file *file);
 
-extern struct intel_display_error_state *
+struct intel_display_error_state *
 intel_display_capture_error_state(struct drm_i915_private *dev_priv);
-extern void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
+void intel_display_print_error_state(struct drm_i915_error_state_buf *e,
 				     struct intel_display_error_state *error);
 
 #define __I915_REG_OP(op__, dev_priv__, ...) \

drivers/gpu/drm/i915/i915_irq.h

@@ -13,8 +13,8 @@
 struct drm_i915_private;
 struct intel_crtc;
 
-extern void intel_irq_init(struct drm_i915_private *dev_priv);
-extern void intel_irq_fini(struct drm_i915_private *dev_priv);
+void intel_irq_init(struct drm_i915_private *dev_priv);
+void intel_irq_fini(struct drm_i915_private *dev_priv);
 int intel_irq_install(struct drm_i915_private *dev_priv);
 void intel_irq_uninstall(struct drm_i915_private *dev_priv);
 

drivers/gpu/drm/i915/oa/i915_oa_bdw.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_BDW_H__
 #define __I915_OA_BDW_H__
 
-extern void i915_perf_load_test_config_bdw(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_bdw(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_bxt.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_BXT_H__
 #define __I915_OA_BXT_H__
 
-extern void i915_perf_load_test_config_bxt(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_bxt(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_cflgt2.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_CFLGT2_H__
 #define __I915_OA_CFLGT2_H__
 
-extern void i915_perf_load_test_config_cflgt2(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_cflgt2(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_cflgt3.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_CFLGT3_H__
 #define __I915_OA_CFLGT3_H__
 
-extern void i915_perf_load_test_config_cflgt3(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_cflgt3(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_chv.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_CHV_H__
 #define __I915_OA_CHV_H__
 
-extern void i915_perf_load_test_config_chv(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_chv(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_cnl.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_CNL_H__
 #define __I915_OA_CNL_H__
 
-extern void i915_perf_load_test_config_cnl(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_cnl(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_glk.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_GLK_H__
 #define __I915_OA_GLK_H__
 
-extern void i915_perf_load_test_config_glk(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_glk(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_hsw.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_HSW_H__
 #define __I915_OA_HSW_H__
 
-extern void i915_perf_load_test_config_hsw(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_hsw(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_icl.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_ICL_H__
 #define __I915_OA_ICL_H__
 
-extern void i915_perf_load_test_config_icl(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_icl(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_kblgt2.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_KBLGT2_H__
 #define __I915_OA_KBLGT2_H__
 
-extern void i915_perf_load_test_config_kblgt2(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_kblgt2(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_kblgt3.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_KBLGT3_H__
 #define __I915_OA_KBLGT3_H__
 
-extern void i915_perf_load_test_config_kblgt3(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_kblgt3(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_sklgt2.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_SKLGT2_H__
 #define __I915_OA_SKLGT2_H__
 
-extern void i915_perf_load_test_config_sklgt2(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_sklgt2(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_sklgt3.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_SKLGT3_H__
 #define __I915_OA_SKLGT3_H__
 
-extern void i915_perf_load_test_config_sklgt3(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_sklgt3(struct drm_i915_private *dev_priv);
 
 #endif

drivers/gpu/drm/i915/oa/i915_oa_sklgt4.h

@@ -10,6 +10,6 @@
 #ifndef __I915_OA_SKLGT4_H__
 #define __I915_OA_SKLGT4_H__
 
-extern void i915_perf_load_test_config_sklgt4(struct drm_i915_private *dev_priv);
+void i915_perf_load_test_config_sklgt4(struct drm_i915_private *dev_priv);
 
 #endif

include/drm/i915_drm.h

@@ -30,11 +30,11 @@
 #include <uapi/drm/i915_drm.h>
 
 /* For use by IPS driver */
-extern unsigned long i915_read_mch_val(void);
-extern bool i915_gpu_raise(void);
-extern bool i915_gpu_lower(void);
-extern bool i915_gpu_busy(void);
-extern bool i915_gpu_turbo_disable(void);
+unsigned long i915_read_mch_val(void);
+bool i915_gpu_raise(void);
+bool i915_gpu_lower(void);
+bool i915_gpu_busy(void);
+bool i915_gpu_turbo_disable(void);
 
 /* Exported from arch/x86/kernel/early-quirks.c */
 extern struct resource intel_graphics_stolen_res;