* [PATCH] mtd: rawnand: ndfc: add CONFIG_OF dependency
@ 2026-06-18 20:58 ` Arnd Bergmann
0 siblings, 0 replies; 2+ messages in thread
From: Arnd Bergmann @ 2026-06-18 20:58 UTC (permalink / raw)
To: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
Rosen Penev
Cc: Arnd Bergmann, Chris Down, Krzysztof Kozlowski, Binbin Zhou,
linux-mtd, linux-kernel
From: Arnd Bergmann <arnd@arndb.de>
When compile-testing on x86 without CONFIG_OF, the ndfc driver produces
a harmless warning:
drivers/mtd/nand/raw/ndfc.c: In function 'ndfc_probe':
include/linux/dev_printk.h:154:31: error: 'len' is used uninitialized [-Werror=uninitialized]
154 | dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^
drivers/mtd/nand/raw/ndfc.c:196:17: note: in expansion of macro 'dev_err'
196 | dev_err(&ofdev->dev, "unable read reg property (%d)\n", len);
Limit compile-testing to configurations with CONFIG_OF to trivially
avoid this. The driver will still be built in allmodconfig and many
randconfig builds.
Fixes: 4f2692a5383e ("mtd: rawnand: ndfc: use ioread32be/iowrite32be and allow COMPILE_TEST")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
We may also want to change the of_get_property() stub function to
initialize *len.
---
drivers/mtd/nand/raw/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
index 64b8b99a3a68..1f4053e531fd 100644
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -72,6 +72,7 @@ config MTD_NAND_AU1550
config MTD_NAND_NDFC
tristate "IBM/MCC 4xx NAND controller"
depends on 44x || COMPILE_TEST
+ depends on OF
select MTD_NAND_ECC_SW_HAMMING
select MTD_NAND_ECC_SW_HAMMING_SMC
help
--
2.39.5
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^ permalink raw reply related [flat|nested] 2+ messages in thread* [PATCH] mtd: rawnand: ndfc: add CONFIG_OF dependency
@ 2026-06-18 20:58 ` Arnd Bergmann
0 siblings, 0 replies; 2+ messages in thread
From: Arnd Bergmann @ 2026-06-18 20:58 UTC (permalink / raw)
To: Miquel Raynal, Richard Weinberger, Vignesh Raghavendra,
Rosen Penev
Cc: Arnd Bergmann, Chris Down, Krzysztof Kozlowski, Binbin Zhou,
linux-mtd, linux-kernel
From: Arnd Bergmann <arnd@arndb.de>
When compile-testing on x86 without CONFIG_OF, the ndfc driver produces
a harmless warning:
drivers/mtd/nand/raw/ndfc.c: In function 'ndfc_probe':
include/linux/dev_printk.h:154:31: error: 'len' is used uninitialized [-Werror=uninitialized]
154 | dev_printk_index_wrap(_dev_err, KERN_ERR, dev, dev_fmt(fmt), ##__VA_ARGS__)
| ^
drivers/mtd/nand/raw/ndfc.c:196:17: note: in expansion of macro 'dev_err'
196 | dev_err(&ofdev->dev, "unable read reg property (%d)\n", len);
Limit compile-testing to configurations with CONFIG_OF to trivially
avoid this. The driver will still be built in allmodconfig and many
randconfig builds.
Fixes: 4f2692a5383e ("mtd: rawnand: ndfc: use ioread32be/iowrite32be and allow COMPILE_TEST")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
We may also want to change the of_get_property() stub function to
initialize *len.
---
drivers/mtd/nand/raw/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/mtd/nand/raw/Kconfig b/drivers/mtd/nand/raw/Kconfig
index 64b8b99a3a68..1f4053e531fd 100644
--- a/drivers/mtd/nand/raw/Kconfig
+++ b/drivers/mtd/nand/raw/Kconfig
@@ -72,6 +72,7 @@ config MTD_NAND_AU1550
config MTD_NAND_NDFC
tristate "IBM/MCC 4xx NAND controller"
depends on 44x || COMPILE_TEST
+ depends on OF
select MTD_NAND_ECC_SW_HAMMING
select MTD_NAND_ECC_SW_HAMMING_SMC
help
--
2.39.5
^ permalink raw reply related [flat|nested] 2+ messages in thread
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2026-06-18 20:58 [PATCH] mtd: rawnand: ndfc: add CONFIG_OF dependency Arnd Bergmann
2026-06-18 20:58 ` Arnd Bergmann
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