From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2B51D2269DB; Fri, 4 Oct 2024 18:30:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728066623; cv=none; b=g7cGlVgn4vQpUuWoMYxeLet/p/FhckiWxzZxJGI6cen5UfrdIWKM/rQQLhh5TjBIcLx1+yh9KcGqJT+pob+zZ7qY+bkKHqfbdk+zu8Uj+LdmGGtuqiGGG39Qu98R7bQXUfbyao6QppREkaElHafxiNIRXJ8BUw8Oi1y07jK1S2Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728066623; c=relaxed/simple; bh=NbAZc4XqAhYoepvIRrPOZBK0dUQRKugFczYyr2FgpP4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YeJYdjebvhXp9vnsfezz/EJi0MGDGmWfEQfsLN0bIkrI4RjDm4qboQp/e616kB/K/iGby8O7TmPD7S/JKpJvidnIK50wpvkOT5EY3IX9XPHnAFcApq5eIgYaAyTpc2RR533CP3AzkzkzjMzxewXgWBxnaQXZ4cz9MavJ0ccoV1c= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=WD74c9jT; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="WD74c9jT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 91934C4CECE; Fri, 4 Oct 2024 18:30:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1728066622; bh=NbAZc4XqAhYoepvIRrPOZBK0dUQRKugFczYyr2FgpP4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WD74c9jTFtpRHuPWNrp1g4DxKJchoR3hZTGPJNHYIED0In1xMhPzjK0KXf7AodtAr zIC//k6awwpKN9Y89yoNt1ppQpz8nYi77aHlgP1bfy2E2p/K5cCy8IQXhfIglMpg88 T84MWLUhNExXk4Sz9Ez+2NHbkviI+16SSWDJYktXWDmJlccLtxbL1DSv0hg9ifvSu3 Msvi7exJqedKk1oM8EdkkbbCwiAHf/T8q/jKF5YOC/1MRuozGdOqVBQrF+q3l4ufOd XxuHymcGhzEQnQUSVfK/xTT4qHOGhWn5zNk5mUtrdWziE1CjlKCnBjNNbVqUObi3Pp VIUmWQXmz4lJw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Thomas Richter , Sumanth Korikkar , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Sasha Levin , svens@linux.ibm.com, linux-s390@vger.kernel.org Subject: [PATCH AUTOSEL 5.10 09/26] s390/cpum_sf: Remove WARN_ON_ONCE statements Date: Fri, 4 Oct 2024 14:29:35 -0400 Message-ID: <20241004183005.3675332-9-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241004183005.3675332-1-sashal@kernel.org> References: <20241004183005.3675332-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.10.226 Content-Transfer-Encoding: 8bit From: Thomas Richter [ Upstream commit b495e710157606889f2d8bdc62aebf2aa02f67a7 ] Remove WARN_ON_ONCE statements. These have not triggered in the past. Signed-off-by: Thomas Richter Acked-by: Sumanth Korikkar Cc: Heiko Carstens Cc: Vasily Gorbik Cc: Alexander Gordeev Signed-off-by: Vasily Gorbik Signed-off-by: Sasha Levin --- arch/s390/kernel/perf_cpum_sf.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c index bcd31e0b4edb3..a9e05f4d0a483 100644 --- a/arch/s390/kernel/perf_cpum_sf.c +++ b/arch/s390/kernel/perf_cpum_sf.c @@ -1432,7 +1432,7 @@ static int aux_output_begin(struct perf_output_handle *handle, unsigned long head, base, offset; struct hws_trailer_entry *te; - if (WARN_ON_ONCE(handle->head & ~PAGE_MASK)) + if (handle->head & ~PAGE_MASK) return -EINVAL; aux->head = handle->head >> PAGE_SHIFT; @@ -1613,7 +1613,7 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw) unsigned long num_sdb; aux = perf_get_aux(handle); - if (WARN_ON_ONCE(!aux)) + if (!aux) return; /* Inform user space new data arrived */ @@ -1635,7 +1635,7 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw) __func__); break; } - if (WARN_ON_ONCE(!aux)) + if (!aux) return; /* Update head and alert_mark to new position */ @@ -1870,12 +1870,8 @@ static void cpumsf_pmu_start(struct perf_event *event, int flags) { struct cpu_hw_sf *cpuhw = this_cpu_ptr(&cpu_hw_sf); - if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED))) + if (!(event->hw.state & PERF_HES_STOPPED)) return; - - if (flags & PERF_EF_RELOAD) - WARN_ON_ONCE(!(event->hw.state & PERF_HES_UPTODATE)); - perf_pmu_disable(event->pmu); event->hw.state = 0; cpuhw->lsctl.cs = 1; -- 2.43.0