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[73.78.62.130]) by smtp.googlemail.com with ESMTPSA id t10-20020a92dc0a000000b003512c3e8809sm1683071iln.71.2023.10.13.15.48.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Oct 2023 15:48:56 -0700 (PDT) From: Jim Cromie To: linux-kernel@vger.kernel.org, jbaron@akamai.com, gregkh@linuxfoundation.org, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Date: Fri, 13 Oct 2023 16:48:14 -0600 Message-ID: <20231013224818.3456409-23-jim.cromie@gmail.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231013224818.3456409-1-jim.cromie@gmail.com> References: <20231013224818.3456409-1-jim.cromie@gmail.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v7b 22/25] dyndbg: change WARN_ON to WARN_ON_ONCE 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: lb@semihalf.com, groeck@google.com, linux-doc@vger.kernel.org, jani.nikula@intel.com, daniel.vetter@ffwll.ch, linux@rasmusvillemoes.dk, Jim Cromie , mcgrof@kernel.org, seanpaul@chromium.org, joe@perches.com, bleung@google.com, yanivt@google.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" This shouldn't ever happen, and 1st 2 conditions never have. The 3rd condition did happen, due to corrupt linkage due to a missing align(8) in DYNDBG_CLASSMAP_USE, on the static struct allocation into the __dyndbg_class_users section. Not sure whether changing to _ONCE is appropriate - this is a module-load activity, so it won't continuously spam syslog. Signed-off-by: Jim Cromie --- undo BUG_ON addition --- lib/dynamic_debug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c index 5825b58043a6..2a5eb64dbc27 100644 --- a/lib/dynamic_debug.c +++ b/lib/dynamic_debug.c @@ -1284,7 +1284,7 @@ static void ddebug_attach_user_module_classes(struct ddebug_table *dt, */ for_each_boxed_vector(di, class_users, num_class_users, i, cli) { - if (WARN_ON(!cli || !cli->map || !cli->user_mod_name)) + if (WARN_ON_ONCE(!cli || !cli->map || !cli->user_mod_name)) continue; if (!strcmp(cli->user_mod_name, dt->mod_name)) {