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Mon, 29 Aug 2022 09:13:14 -0400 (EDT) From: Maxime Ripard To: Maxime Ripard , Ben Skeggs , David Airlie , Chen-Yu Tsai , Thomas Zimmermann , Jani Nikula , Lyude Paul , Philipp Zabel , Maarten Lankhorst , Rodrigo Vivi , Tvrtko Ursulin , Jernej Skrabec , Samuel Holland , Karol Herbst , =?utf-8?q?Noralf_Tr=C3=B8nnes?= , Emma Anholt , Daniel Vetter , Joonas Lahtinen Date: Mon, 29 Aug 2022 15:11:25 +0200 Message-Id: <20220728-rpi-analog-tv-properties-v2-11-459522d653a7@cerno.tech> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20220728-rpi-analog-tv-properties-v2-0-459522d653a7@cerno.tech> References: <20220728-rpi-analog-tv-properties-v2-0-459522d653a7@cerno.tech> MIME-Version: 1.0 X-Mailer: b4 0.10.0-dev-65ba7 X-Developer-Signature: v=1; a=openpgp-sha256; l=1602; i=maxime@cerno.tech; h=from:subject:message-id; bh=8m2oE9knJwjnJjXPGWMUzPqprWg4Yy2kfTXAOXrvUBw=; b=owGbwMvMwCX2+D1vfrpE4FHG02pJDMk8u+TFb5186ny1/84sy/s5f/fZntb7tNzPRSPttvTSm1cN ez4c6ihlYRDjYpAVU2SJETZfEndq1utONr55MHNYmUCGMHBxCsBELosxMhxUVWW7O7lOLH3qibNR5y 7/5vyrydC9J37Pi3/7lBmPvqhl+GelPS+9T6HOxO6kutbhwMIzWZXcy7ojzn15b1s2dQ1nJTMA X-Developer-Key: i=maxime@cerno.tech; a=openpgp; fpr=BE5675C37E818C8B5764241C254BCFC56BF6CE8D Subject: [Intel-gfx] [PATCH v2 11/41] drm/modes: Only consider bpp and refresh before options X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dom Cobley , Dave Stevenson , nouveau@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sunxi@lists.linux.dev, Geert Uytterhoeven , Maxime Ripard , Mateusz Kwiatkowski , Phil Elwell , linux-arm-kernel@lists.infradead.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Some video= options might have a value that contains a dash. However, the command line parsing mode considers all dashes as the separator between the mode and the bpp count. Let's rework the parsing code a bit to only consider a dash as the bpp separator if it before a comma, the options separator. A follow-up patch will add a unit-test for this once such an option is introduced. Signed-off-by: Maxime Ripard Reviewed-by: Geert Uytterhoeven diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c index ee581ee17171..b4e1ff56b4d8 100644 --- a/drivers/gpu/drm/drm_modes.c +++ b/drivers/gpu/drm/drm_modes.c @@ -2254,20 +2254,22 @@ bool drm_mode_parse_command_line_for_connector(const char *mode_option, name = mode_option; + /* Locate the start of named options */ + options_ptr = strchr(name, ','); + if (options_ptr) + options_off = options_ptr - name; + else + options_off = strlen(name); + /* Try to locate the bpp and refresh specifiers, if any */ - bpp_ptr = strchr(name, '-'); + bpp_ptr = strnchr(name, options_off, '-'); if (bpp_ptr) bpp_off = bpp_ptr - name; - refresh_ptr = strchr(name, '@'); + refresh_ptr = strnchr(name, options_off, '@'); if (refresh_ptr) refresh_off = refresh_ptr - name; - /* Locate the start of named options */ - options_ptr = strchr(name, ','); - if (options_ptr) - options_off = options_ptr - name; - /* Locate the end of the name / resolution, and parse it */ if (bpp_ptr) { mode_end = bpp_off;