From: Jim Quinlan <jim2101024@xxxxxxxxx>
[ Upstream commit a8d61a9112ad0c9216ab45d050991e07bc4f3408 ]
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@xxxxxxxxx>
Signed-off-by: Jim Quinlan <jim2101024@xxxxxxxxx>
Reviewed-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Frank Rowand <frank.rowand@xxxxxxxx>
Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20211210184636.7273-2-jim2101024@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
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 1d4b0b7d0cc10..a5c4c77b6f3e2 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -910,11 +910,18 @@ 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",
@@ -924,6 +931,7 @@ 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
--
2.34.1
