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[195.250.132.146]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48af50a410bsm3500024f8f.36.2026.09.29.05.07.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2026 05:07:27 -0700 (PDT) From: Petr Mladek To: John Ogness Cc: Sergey Senozhatsky , Steven Rostedt , Marcos Paulo de Souza , Chris Down , Naveen Kumar Chaudhary , linux-kernel@vger.kernel.org, Petr Mladek Subject: [PATCH v5 08/16] printk: Do not quietly ignore adding entry for a preferred console when there is no space Date: Tue, 29 Sep 2026 14:05:38 +0200 Message-ID: <20260929120546.328616-9-pmladek@suse.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260929120546.328616-1-pmladek@suse.com> References: <20260929120546.328616-1-pmladek@suse.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit It is hard to imagine that anyone would want to add more than 8 preferred consoles. But never say never. And do not ignore new entries quietly. Signed-off-by: Petr Mladek --- kernel/printk/printk.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c index 0fafc579bdd3..4670787195d1 100644 --- a/kernel/printk/printk.c +++ b/kernel/printk/printk.c @@ -2575,8 +2575,10 @@ static int add_or_update_preferred_console(unsigned int i, struct preferred_console *pc; bool is_new_entry = false; - if (i >= MAX_PREFERRED_CONSOLES) + if (i >= MAX_PREFERRED_CONSOLES) { + pr_err_once("Reached maximal number of preferred consoles.\n"); return -E2BIG; + } pc = &preferred_consoles[i]; -- 2.55.0