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a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1752583568; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=+sDEqGp1KwO3i0sstWkwwfjWP+GHVJqvLLkRMAUvYwk=; b=CT7BdT8z352qflupYHw2sWAh8fWKxNDz9B66Rimykj/vOGy2LC7Y4kPtvXzcyByg3rFkld +4abPjlShLLWILAg== From: Fabiano Rosas To: qemu-devel@nongnu.org Cc: Peter Xu , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Peter Maydell Subject: [PATCH 1/2] migration: Fix postcopy latency distribution formatting computation Date: Tue, 15 Jul 2025 09:45:51 -0300 Message-Id: <20250715124552.28038-2-farosas@suse.de> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20250715124552.28038-1-farosas@suse.de> References: <20250715124552.28038-1-farosas@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-3.01 / 50.00]; BAYES_HAM(-3.00)[99.99%]; MID_CONTAINS_FROM(1.00)[]; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=195.135.223.130; envelope-from=farosas@suse.de; helo=smtp-out1.suse.de X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @suse.de) X-ZM-MESSAGEID: 1752585487389116600 Content-Type: text/plain; charset="utf-8" Coverity has caught a bug in the formatting of time intervals for postcopy latency distribution display in 'info migrate'. While bounds checking the labels array, sizeof is incorrectly being used. ARRAY_SIZE is the correct form of obtaining the size of an array. Fixes: 3345fb3b6d ("migration/postcopy: Add latency distribution report for= blocktime") Resolves: Coverity CID 1612248 Suggested-by: Peter Maydell Signed-off-by: Fabiano Rosas Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- migration/migration-hmp-cmds.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/migration/migration-hmp-cmds.c b/migration/migration-hmp-cmds.c index cef5608210..bb954881d7 100644 --- a/migration/migration-hmp-cmds.c +++ b/migration/migration-hmp-cmds.c @@ -57,11 +57,9 @@ static const gchar *format_time_str(uint64_t us) const char *units[] =3D {"us", "ms", "sec"}; int index =3D 0; =20 - while (us > 1000) { + while (us > 1000 && index + 1 < ARRAY_SIZE(units)) { us /=3D 1000; - if (++index >=3D (sizeof(units) - 1)) { - break; - } + index++; } =20 return g_strdup_printf("%"PRIu64" %s", us, units[index]); --=20 2.35.3