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Thu, 01 Oct 2026 12:58:54 -0700 (PDT) From: =?UTF-8?q?M=C3=A0xim=20Pedraza=20Padilla?= To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Ard Biesheuvel , Jonathan Corbet Cc: Francesco Valla , Mario Limonciello , Javier Martinez Canillas , Jocelyn Falempe , Sam Ravnborg , Ilias Apalodimas , Shuah Khan , Randy Dunlap , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-efi@vger.kernel.org, linux-doc@vger.kernel.org, linux-embedded@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH RFC v4 02/13] efi: bgrt: export the BGRT table and image size Date: Thu, 1 Oct 2026 21:58:36 +0200 Message-Id: <20261001195847.141192-3-maximpedraza@gmail.com> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20261001195847.141192-1-maximpedraza@gmail.com> References: <20261001195847.141192-1-maximpedraza@gmail.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The DRM splash client reads the boot graphics the firmware left behind through bgrt_tab and bgrt_image_size. Built as part of drm_client_lib, which can be a module, it then fails to link: ERROR: modpost: drivers/gpu/drm/clients/drm_client_lib.ko: symbol 'bgrt_tab' undefined! ERROR: modpost: drivers/gpu/drm/clients/drm_client_lib.ko: symbol 'bgrt_image_size' undefined! Export both. They are filled in once, early in boot, and only read after that. Reported-by: Mario Limonciello Closes: https://lore.kernel.org/dri-devel/5d7067de-97b7-4232-9cf6-e4b978696482@amd.com/ Assisted-by: Claude:claude-opus-5-5 Signed-off-by: Màxim Pedraza Padilla --- drivers/firmware/efi/efi-bgrt.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/firmware/efi/efi-bgrt.c b/drivers/firmware/efi/efi-bgrt.c index 1da451582812..746a8fb3a337 100644 --- a/drivers/firmware/efi/efi-bgrt.c +++ b/drivers/firmware/efi/efi-bgrt.c @@ -17,7 +17,10 @@ #include struct acpi_table_bgrt bgrt_tab; +EXPORT_SYMBOL_GPL(bgrt_tab); + size_t bgrt_image_size; +EXPORT_SYMBOL_GPL(bgrt_image_size); struct bmp_header { u16 id; -- 2.39.5