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From:   Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To:     linux-kernel@vger.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        stable@vger.kernel.org, Mike Tipton <mdtipton@codeaurora.org>,
        Georgi Djakov <djakov@kernel.org>
Subject: [PATCH 5.13 157/175] interconnect: Always call pre_aggregate before aggregate
Date:   Tue, 10 Aug 2021 19:31:05 +0200
Message-Id: <20210810173006.139418823@linuxfoundation.org>
In-Reply-To: <20210810173000.928681411@linuxfoundation.org>
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From: Mike Tipton <mdtipton@codeaurora.org>

commit 73606ba9242f8e32023699b500b7922b4cf2993c upstream.

The pre_aggregate callback isn't called in all cases before calling
aggregate. Add the missing calls so providers can rely on consistent
framework behavior.

Fixes: d3703b3e255f ("interconnect: Aggregate before setting initial bandwidth")
Signed-off-by: Mike Tipton <mdtipton@codeaurora.org>
Link: https://lore.kernel.org/r/20210721175432.2119-3-mdtipton@codeaurora.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/interconnect/core.c |    5 +++++
 1 file changed, 5 insertions(+)

--- a/drivers/interconnect/core.c
+++ b/drivers/interconnect/core.c
@@ -973,9 +973,14 @@ void icc_node_add(struct icc_node *node,
 	}
 	node->avg_bw = node->init_avg;
 	node->peak_bw = node->init_peak;
+
+	if (provider->pre_aggregate)
+		provider->pre_aggregate(node);
+
 	if (provider->aggregate)
 		provider->aggregate(node, 0, node->init_avg, node->init_peak,
 				    &node->avg_bw, &node->peak_bw);
+
 	provider->set(node, node);
 	node->avg_bw = 0;
 	node->peak_bw = 0;