Gustavo A. R. Silva 2defb94edb drm/i915: Mark expected switch fall-throughs ... In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. This patch fixes the following warnings: drivers/gpu/drm/i915/gem/i915_gem_mman.c: In function ‘i915_gem_fault’: drivers/gpu/drm/i915/gem/i915_gem_mman.c:342:6: warning: this statement may fall through [-Wimplicit-fallthrough=] if (!i915_terminally_wedged(i915)) ^ drivers/gpu/drm/i915/gem/i915_gem_mman.c:345:2: note: here case -EAGAIN: ^~~~ drivers/gpu/drm/i915/gem/i915_gem_pages.c: In function ‘i915_gem_object_map’: ./include/linux/compiler.h:78:22: warning: this statement may fall through [-Wimplicit-fallthrough=] # define unlikely(x) __builtin_expect(!!(x), 0) ^~~~~~~~~~~~~~~~~~~~~~~~~~ ./include/asm-generic/bug.h:136:2: note: in expansion of macro ‘unlikely’ unlikely(__ret_warn_on); \ ^~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:49:25: note: in expansion of macro ‘WARN’ #define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \ ^~~~ drivers/gpu/drm/i915/gem/i915_gem_pages.c:270:3: note: in expansion of macro ‘MISSING_CASE’ MISSING_CASE(type); ^~~~~~~~~~~~ drivers/gpu/drm/i915/gem/i915_gem_pages.c:272:2: note: here case I915_MAP_WB: ^~~~ drivers/gpu/drm/i915/i915_gpu_error.c: In function ‘error_record_engine_registers’: ./include/linux/compiler.h:78:22: warning: this statement may fall through [-Wimplicit-fallthrough=] # define unlikely(x) __builtin_expect(!!(x), 0) ^~~~~~~~~~~~~~~~~~~~~~~~~~ ./include/asm-generic/bug.h:136:2: note: in expansion of macro ‘unlikely’ unlikely(__ret_warn_on); \ ^~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:49:25: note: in expansion of macro ‘WARN’ #define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \ ^~~~ drivers/gpu/drm/i915/i915_gpu_error.c:1196:5: note: in expansion of macro ‘MISSING_CASE’ MISSING_CASE(engine->id); ^~~~~~~~~~~~ drivers/gpu/drm/i915/i915_gpu_error.c:1197:4: note: here case RCS0: ^~~~ drivers/gpu/drm/i915/display/intel_dp.c: In function ‘intel_dp_get_fia_supported_lane_count’: ./include/linux/compiler.h:78:22: warning: this statement may fall through [-Wimplicit-fallthrough=] # define unlikely(x) __builtin_expect(!!(x), 0) ^~~~~~~~~~~~~~~~~~~~~~~~~~ ./include/asm-generic/bug.h:136:2: note: in expansion of macro ‘unlikely’ unlikely(__ret_warn_on); \ ^~~~~~~~ drivers/gpu/drm/i915/i915_utils.h:49:25: note: in expansion of macro ‘WARN’ #define MISSING_CASE(x) WARN(1, "Missing case (%s == %ld)\n", \ ^~~~ drivers/gpu/drm/i915/display/intel_dp.c:233:3: note: in expansion of macro ‘MISSING_CASE’ MISSING_CASE(lane_info); ^~~~~~~~~~~~ drivers/gpu/drm/i915/display/intel_dp.c:234:2: note: here case 1: ^~~~ drivers/gpu/drm/i915/display/intel_display.c: In function ‘check_digital_port_conflicts’: CC [M] drivers/gpu/drm/nouveau/nvkm/engine/disp/cursgv100.o drivers/gpu/drm/i915/display/intel_display.c:12043:7: warning: this statement may fall through [-Wimplicit-fallthrough=] if (WARN_ON(!HAS_DDI(to_i915(dev)))) ^ drivers/gpu/drm/i915/display/intel_display.c:12046:3: note: here case INTEL_OUTPUT_DP: ^~~~ Also, notice that the Makefile is modified to stop ignoring fall-through warnings. The -Wimplicit-fallthrough option will be enabled globally in v5.3. Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough. Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>		2019-07-25 20:13:47 -05:00
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dvo_ch7xxx.c
dvo_ch7017.c
dvo_ivch.c
dvo_ns2501.c
dvo_sil164.c
dvo_tfp410.c
icl_dsi.c
intel_acpi.c
intel_acpi.h
intel_atomic_plane.c
intel_atomic_plane.h
intel_atomic.c
intel_atomic.h
intel_audio.c
intel_audio.h
intel_bios.c
intel_bios.h
intel_bw.c
intel_bw.h
intel_cdclk.c
intel_cdclk.h
intel_color.c
intel_color.h
intel_combo_phy.c
intel_combo_phy.h
intel_connector.c
intel_connector.h
intel_crt.c
intel_crt.h
intel_ddi.c
intel_ddi.h
intel_display_power.c
intel_display_power.h
intel_display.c
intel_display.h
intel_dp_aux_backlight.c
intel_dp_aux_backlight.h
intel_dp_link_training.c
intel_dp_link_training.h
intel_dp_mst.c
intel_dp_mst.h
intel_dp.c
intel_dp.h
intel_dpio_phy.c
intel_dpio_phy.h
intel_dpll_mgr.c
intel_dpll_mgr.h
intel_dsi_dcs_backlight.c
intel_dsi_dcs_backlight.h
intel_dsi_vbt.c
intel_dsi.c
intel_dsi.h
intel_dvo_dev.h
intel_dvo.c
intel_dvo.h
intel_fbc.c
intel_fbc.h
intel_fbdev.c
intel_fbdev.h
intel_fifo_underrun.c
intel_fifo_underrun.h
intel_frontbuffer.c
intel_frontbuffer.h
intel_gmbus.c
intel_gmbus.h
intel_hdcp.c
intel_hdcp.h
intel_hdmi.c
intel_hdmi.h
intel_hotplug.c
intel_hotplug.h
intel_lpe_audio.c
intel_lpe_audio.h
intel_lspcon.c
intel_lspcon.h
intel_lvds.c
intel_lvds.h
intel_opregion.c
intel_opregion.h
intel_overlay.c
intel_overlay.h
intel_panel.c
intel_panel.h
intel_pipe_crc.c
intel_pipe_crc.h
intel_psr.c
intel_psr.h
intel_quirks.c
intel_quirks.h
intel_sdvo_regs.h
intel_sdvo.c
intel_sdvo.h
intel_sprite.c
intel_sprite.h
intel_tv.c
intel_tv.h
intel_vbt_defs.h
intel_vdsc.c
intel_vdsc.h
Makefile
Makefile.header-test
vlv_dsi_pll.c
vlv_dsi.c