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[45.160.36.99]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-42cb7fd8baesm12473639f8f.39.2025.11.21.10.51.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Nov 2025 10:51:04 -0800 (PST) From: Marcos Paulo de Souza Date: Fri, 21 Nov 2025 15:50:34 -0300 Subject: [PATCH v2 2/4] arch: um: kmsg_dump: Use console_is_usable Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251121-printk-cleanup-part2-v2-2-57b8b78647f4@suse.com> References: <20251121-printk-cleanup-part2-v2-0-57b8b78647f4@suse.com> In-Reply-To: <20251121-printk-cleanup-part2-v2-0-57b8b78647f4@suse.com> To: Petr Mladek , Steven Rostedt , John Ogness , Sergey Senozhatsky , Greg Kroah-Hartman , Jiri Slaby , Jason Wessel , Daniel Thompson , Douglas Anderson , Richard Weinberger , Anton Ivanov , Johannes Berg Cc: linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, kgdb-bugreport@lists.sourceforge.net, linux-um@lists.infradead.org, Marcos Paulo de Souza X-Mailer: b4 0.15-dev X-Developer-Signature: v=1; a=ed25519-sha256; t=1763751050; l=947; i=mpdesouza@suse.com; s=20231031; h=from:subject:message-id; bh=OUGnBzAKcXkW36Da9OkzDufBeFjxJOoOBfhwdvnkuOI=; b=NhgxbcLWcMIXgHoLmIkuyir16mphjDmcWSS+twRF1KgkvMiTNw7Q71Y6gddQptkBeT/ZV7ybA 7aK6FXimEBMB8iP+Lld4HVVYCnfUvIZlIMUIC+Vdjx4lrgmiiIWXdaA X-Developer-Key: i=mpdesouza@suse.com; a=ed25519; pk=/Ni/TsKkr69EOmdZXkp1Q/BlzDonbOBRsfPa18ySIwU= All consoles found on for_each_console are registered, meaning that all of them have the CON_ENABLED flag set. Since NBCON was introduced it's important to check if a given console also implements the NBCON callbacks. The function console_is_usable does exactly that. Signed-off-by: Marcos Paulo de Souza Reviewed-by: Petr Mladek --- arch/um/kernel/kmsg_dump.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/um/kernel/kmsg_dump.c b/arch/um/kernel/kmsg_dump.c index 419021175272..fc0f543d1d8e 100644 --- a/arch/um/kernel/kmsg_dump.c +++ b/arch/um/kernel/kmsg_dump.c @@ -31,7 +31,7 @@ static void kmsg_dumper_stdout(struct kmsg_dumper *dumper, * expected to output the crash information. */ if (strcmp(con->name, "ttynull") !=3D 0 && - (console_srcu_read_flags(con) & CON_ENABLED)) { + console_is_usable(con, console_srcu_read_flags(con), true)) { break; } } --=20 2.51.1