From: Sumit Gupta <sumitg@nvidia.com>
To: <krzk@kernel.org>, <treding@nvidia.com>, <jonathanh@nvidia.com>,
<linux-kernel@vger.kernel.org>, <linux-tegra@vger.kernel.org>
Cc: <bbasu@nvidia.com>, <sumitg@nvidia.com>
Subject: [PATCH 3/3] memory: tegra234: drop dead NULL check in tegra234_mc_icc_aggregate()
Date: Wed, 27 May 2026 19:31:27 +0530 [thread overview]
Message-ID: <20260527140127.49172-4-sumitg@nvidia.com> (raw)
In-Reply-To: <20260527140127.49172-1-sumitg@nvidia.com>
In tegra234_mc_icc_aggregate(), the 'if (mc)' check inside the
CPU-cluster branch is always true. 'mc' was already dereferenced
via 'mc->bwmgr_mrq_supported' a few lines above, so if it were NULL
the function would have faulted there. Drop the redundant check.
Reported-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
---
drivers/memory/tegra/tegra234.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/memory/tegra/tegra234.c b/drivers/memory/tegra/tegra234.c
index 9fbd34d4abe0..982476b67d5a 100644
--- a/drivers/memory/tegra/tegra234.c
+++ b/drivers/memory/tegra/tegra234.c
@@ -1106,10 +1106,8 @@ static int tegra234_mc_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
if (node->id == TEGRA_ICC_MC_CPU_CLUSTER0 ||
node->id == TEGRA_ICC_MC_CPU_CLUSTER1 ||
- node->id == TEGRA_ICC_MC_CPU_CLUSTER2) {
- if (mc)
- peak_bw = peak_bw * mc->num_channels;
- }
+ node->id == TEGRA_ICC_MC_CPU_CLUSTER2)
+ peak_bw = peak_bw * mc->num_channels;
*agg_avg += avg_bw;
*agg_peak = max(*agg_peak, peak_bw);
--
2.34.1
next prev parent reply other threads:[~2026-05-27 14:02 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-27 14:01 [PATCH 0/3] memory: tegra: UBSAN fix and cleanups Sumit Gupta
2026-05-27 14:01 ` [PATCH 1/3] memory: tegra186-emc: stop borrowing MC aggregate hook for EMC Sumit Gupta
2026-06-09 15:01 ` Krzysztof Kozlowski
2026-06-09 15:07 ` Jon Hunter
2026-06-09 15:08 ` Krzysztof Kozlowski
2026-05-27 14:01 ` [PATCH 2/3] memory: tegra264: drop redundant tegra264_mc_icc_aggregate() Sumit Gupta
2026-05-27 14:01 ` Sumit Gupta [this message]
2026-06-09 14:51 ` [PATCH 0/3] memory: tegra: UBSAN fix and cleanups Jon Hunter
2026-06-09 15:02 ` Krzysztof Kozlowski
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