From: Jim Quinlan <jim2101024@gmail.com>
To: Christoph Hellwig <hch@lst.de>,
bcm-kernel-feedback-list@broadcom.com, jim2101024@gmail.com,
james.quinlan@broadcom.com
Cc: Rob Herring <robh+dt@kernel.org>,
Frank Rowand <frowand.list@gmail.com>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
FLATTENED DEVICE TREE), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2 1/1] of: unittest: fix warning on PowerPC frame size warning
Date: Fri, 10 Dec 2021 13:46:35 -0500 [thread overview]
Message-ID: <20211210184636.7273-2-jim2101024@gmail.com> (raw)
In-Reply-To: <20211210184636.7273-1-jim2101024@gmail.com>
The struct device variable "dev_bogus" was triggering this warning
on a PowerPC build:
drivers/of/unittest.c: In function 'of_unittest_dma_ranges_one.constprop':
[...] >> The frame size of 1424 bytes is larger than 1024 bytes
[-Wframe-larger-than=]
This variable is now dynamically allocated.
Fixes: e0d072782c734 ("dma-mapping: introduce DMA range map, supplanting dma_pfn_offset")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
---
drivers/of/unittest.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 481ba8682ebf..02c5cd06ad19 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -911,11 +911,18 @@ static void __init of_unittest_dma_ranges_one(const char *path,
if (!rc) {
phys_addr_t paddr;
dma_addr_t dma_addr;
- struct device dev_bogus;
+ struct device *dev_bogus;
- dev_bogus.dma_range_map = map;
- paddr = dma_to_phys(&dev_bogus, expect_dma_addr);
- dma_addr = phys_to_dma(&dev_bogus, expect_paddr);
+ dev_bogus = kzalloc(sizeof(struct device), GFP_KERNEL);
+ if (!dev_bogus) {
+ unittest(0, "kzalloc() failed\n");
+ kfree(map);
+ return;
+ }
+
+ dev_bogus->dma_range_map = map;
+ paddr = dma_to_phys(dev_bogus, expect_dma_addr);
+ dma_addr = phys_to_dma(dev_bogus, expect_paddr);
unittest(paddr == expect_paddr,
"of_dma_get_range: wrong phys addr %pap (expecting %llx) on node %pOF\n",
@@ -925,6 +932,7 @@ static void __init of_unittest_dma_ranges_one(const char *path,
&dma_addr, expect_dma_addr, np);
kfree(map);
+ kfree(dev_bogus);
}
of_node_put(np);
#endif
--
2.17.1
next prev parent reply other threads:[~2021-12-10 18:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-10 18:46 [PATCH v2 0/1] of: unittest: fix warning on PowerPC frame size warning Jim Quinlan
2021-12-10 18:46 ` Jim Quinlan [this message]
2021-12-12 22:47 ` [PATCH v2 1/1] " Frank Rowand
2021-12-13 7:24 ` Christoph Hellwig
2021-12-13 18:12 ` Florian Fainelli
2021-12-15 19:54 ` Rob Herring
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