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[198.0.35.241]) by smtp.gmail.com with ESMTPSA id ji12-20020a170903324c00b001c44489ee55sm3742718plb.273.2023.09.22.10.32.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Sep 2023 10:32:18 -0700 (PDT) From: Kees Cook To: David Airlie Cc: Kees Cook , Evan Quan , Alex Deucher , =?utf-8?q?Christian_K=C3=B6nig?= , "Pan, Xinhui" , Daniel Vetter , Xiaojian Du , Huang Rui , Kevin Wang , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Emma Anholt , Hawking Zhang , Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , Chris Wilson , John Harrison , Andi Shyti , Matthew Brost , Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , Marijn Suijten , Bjorn Andersson , Ben Skeggs , Karol Herbst , Lyude Paul , Maxime Ripard , David Airlie , Gerd Hoffmann , Gurchetan Singh , Chia-I Wu , Zack Rusin , VMware Graphics Reviewers , Melissa Wen , Nathan Chancellor , Nick Desaulniers , Tom Rix , Le Ma , Lijo Lazar , Yifan Zhang , Prike Liang , Lang Yu , Tejas Upadhyay , Nirmoy Das , Andrzej Hajda , Neil Armstrong , Kuogee Hsieh , linux-kernel@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, nouveau@lists.freedesktop.org, virtualization@lists.linux-foundation.org, llvm@lists.linux.dev, linux-hardening@vger.kernel.org Subject: [PATCH 1/9] drm/amd/pm: Annotate struct smu10_voltage_dependency_table with __counted_by Date: Fri, 22 Sep 2023 10:32:06 -0700 Message-Id: <20230922173216.3823169-1-keescook@chromium.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230922173110.work.084-kees@kernel.org> References: <20230922173110.work.084-kees@kernel.org> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1712; i=keescook@chromium.org; h=from:subject; bh=kCvC5X4RJuHaoweqFnQ9xMUwIDOFINcpTmqcFOUOp9g=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBlDc+dzQGoS9m8Q71IG/SluCNIy0Np4uBUNCXIF 2oTBIaso6OJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCZQ3PnQAKCRCJcvTf3G3A JjY9EACkZXMo7wzxY4THEhXZJmkYixLA2UlloTPXgPy8CvMUYiNLBwVLSqoh/h/5MhgdgB+pVHX gjEPVRbNLsQ1sMYLw31nppSpdtNmrx+qI2Xv8/FCIrTsOHuBoHSi+9nwoY2LW7IEx8xVxDORb01 i9WnFgRMl8JlxFCnGrKgYtrWpQVCGXMfpunpsPAAmh2g5Yfkoo8Yodegj0WGJdFnSQzp2irODLS 4fzO25EG9TH3jtCwjZItDt5m0cT8oO2gC1LVyKm/WXFfllivnEC967z9zUAtQtABdtjhtosOPHC 1jSJ119A0nTIyM6aLwtiK32qSZA2Of2ooijB8afmhRUb5Jb+iPKwLmRnvY+TycfX8U8VtGQBkbA PsbT82Qj4Qqirr4cuxGVW/oAnE7XDwMh8IEHMNP1n3XOmEtlx7TVlgUKL774++kkLb5/dO90oUm DGOwxoXK9G23PdRFLUZ82z/F0glCWWkDrqrmKUkcKnY7rdSxGYAapRKXY6YbnmQ3EA3hqkEBXtV Df/r+VTS0EiXZ6VrmE54NZ2HQTkIjn/3uMxtp2UVPqb2tn6zRXFLAI85C3NUtvV2TNniYKdU/mB V12ppntQS4AmfEbCBhZc3biSLzO4h5eErGTnBoeVzf8NDuINYiUgr2+IDcyvEE0XObVZcrukMxP e9S9RTOiaW+wWUw== X-Developer-Key: i=keescook@chromium.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct smu10_voltage_dependency_table. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Evan Quan Cc: Alex Deucher Cc: "Christian König" Cc: "Pan, Xinhui" Cc: David Airlie Cc: Daniel Vetter Cc: Xiaojian Du Cc: Huang Rui Cc: Kevin Wang Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Kees Cook Acked-by: Alex Deucher Reviewed-by: Gustavo A. R. Silva --- drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.h b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.h index 808e0ecbe1f0..42adc2a3dcbc 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.h +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.h @@ -192,7 +192,7 @@ struct smu10_clock_voltage_dependency_record { struct smu10_voltage_dependency_table { uint32_t count; - struct smu10_clock_voltage_dependency_record entries[]; + struct smu10_clock_voltage_dependency_record entries[] __counted_by(count); }; struct smu10_clock_voltage_information {