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drm/amd/display: Pass display_pipe_params_st as const in DML
authorHarry Wentland <harry.wentland@amd.com>
Tue, 7 Sep 2021 23:40:06 +0000 (19:40 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 23 Sep 2021 19:17:29 +0000 (15:17 -0400)
commit22667e6ec6b2ce9ca706e9061660b059725d009c
tree5b0d8d806874ef691ab0fba9ed6af4abc9fcb54e
parente7eb2137e84adc7c6594463fbb41b9962d311f16
drm/amd/display: Pass display_pipe_params_st as const in DML

[Why]
This neither needs to be on the stack nor passed by value
to each function call. In fact, when building with clang
it seems to break the Linux's default 1024 byte stack
frame limit.

[How]
We can simply pass this as a const pointer.

This patch fixes these Coverity IDs
Addresses-Coverity-ID: 1424031: ("Big parameter passed by value")
Addresses-Coverity-ID: 1423970: ("Big parameter passed by value")
Addresses-Coverity-ID: 1423941: ("Big parameter passed by value")
Addresses-Coverity-ID: 1451742: ("Big parameter passed by value")
Addresses-Coverity-ID: 1451887: ("Big parameter passed by value")
Addresses-Coverity-ID: 1454146: ("Big parameter passed by value")
Addresses-Coverity-ID: 1454152: ("Big parameter passed by value")
Addresses-Coverity-ID: 1454413: ("Big parameter passed by value")
Addresses-Coverity-ID: 1466144: ("Big parameter passed by value")
Addresses-Coverity-ID: 1487237: ("Big parameter passed by value")

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Fixes: 3fe617ccafd6 ("Enable '-Werror' by default for all kernel builds")
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: amd-gfx@lists.freedesktop.org
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Xinhui Pan <Xinhui.Pan@amd.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: llvm@lists.linux.dev
Acked-by: Christian König <christian.koenig@amd.com>
Build-tested-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
12 files changed:
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.c
drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20.h
drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20v2.c
drivers/gpu/drm/amd/display/dc/dml/dcn20/display_rq_dlg_calc_20v2.h
drivers/gpu/drm/amd/display/dc/dml/dcn21/display_rq_dlg_calc_21.c
drivers/gpu/drm/amd/display/dc/dml/dcn21/display_rq_dlg_calc_21.h
drivers/gpu/drm/amd/display/dc/dml/dcn30/display_rq_dlg_calc_30.c
drivers/gpu/drm/amd/display/dc/dml/dcn30/display_rq_dlg_calc_30.h
drivers/gpu/drm/amd/display/dc/dml/dcn31/display_rq_dlg_calc_31.c
drivers/gpu/drm/amd/display/dc/dml/dcn31/display_rq_dlg_calc_31.h
drivers/gpu/drm/amd/display/dc/dml/display_mode_lib.h