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[24.9.77.57]) by smtp.googlemail.com with ESMTPSA id t10sm405096ils.36.2021.05.11.11.51.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 May 2021 11:51:29 -0700 (PDT) From: Jim Cromie To: Jason Baron , linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, Jim Cromie Subject: [RFC PATCH v5 10/28] dyndbg: accept null site in ddebug_proc_show Date: Tue, 11 May 2021 12:50:39 -0600 Message-Id: <20210511185057.3815777-11-jim.cromie@gmail.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210511185057.3815777-1-jim.cromie@gmail.com> References: <20210511185057.3815777-1-jim.cromie@gmail.com> MIME-Version: 1.0 Authentication-Results: imf25.hostedemail.com; dkim=pass header.d=gmail.com header.s=20161025 header.b=LAl6WYqQ; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf25.hostedemail.com: domain of jimcromie@gmail.com designates 209.85.166.171 as permitted sender) smtp.mailfrom=jimcromie@gmail.com X-Stat-Signature: egq9y6hj7pg55f4pknchnj7y7rj83a74 X-Rspamd-Queue-Id: A10EE600010F X-Rspamd-Server: rspam02 Received-SPF: none (gmail.com>: No applicable sender policy available) receiver=imf25; identity=mailfrom; envelope-from=""; helo=mail-il1-f171.google.com; client-ip=209.85.166.171 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1620759081-208783 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Accept a ddebug record with a null site pointer, and write abbreviated output for that record that doesn't include site info (but does include line-number, since that can be used in >control queries). Also add a 2nd header line with a template for the new output. Signed-off-by: Jim Cromie --- lib/dynamic_debug.c | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c index fb8547feb061..5faf49054b1d 100644 --- a/lib/dynamic_debug.c +++ b/lib/dynamic_debug.c @@ -923,18 +923,27 @@ static int ddebug_proc_show(struct seq_file *m, voi= d *p) =20 if (p =3D=3D SEQ_START_TOKEN) { seq_puts(m, - "# filename:lineno [module]function flags format\n"); + "#: filename:lineno [module]function flags format\n" + "#| [module]:lineno flags format\n" + ); return 0; } =20 dc =3D dp->site; - - seq_printf(m, "%s:%u [%s]%s =3D%s \"", - trim_prefix(dc->filename), dp->lineno, - iter->table->mod_name, dc->function, - ddebug_describe_flags(dp->flags, &flags)); - seq_escape(m, dp->format, "\t\r\n\""); - seq_puts(m, "\"\n"); + if (dc) { + seq_printf(m, "%s:%u [%s]%s =3D%s \"", + trim_prefix(dc->filename), dp->lineno, + iter->table->mod_name, dc->function, + ddebug_describe_flags(dp->flags, &flags)); + seq_escape(m, dp->format, "\t\r\n\""); + seq_puts(m, "\"\n"); + } else { + seq_printf(m, "[%s]:%u =3D%s \"", + iter->table->mod_name, dp->lineno, + ddebug_describe_flags(dp->flags, &flags)); + seq_escape(m, dp->format, "\t\r\n\""); + seq_puts(m, "\"\n"); + } =20 return 0; } --=20 2.31.1