linux-next: build failure after merge of the kspp tree

Stephen Rothwell
2022-03-16T07:32:37Z

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Hi all,

After merging the kspp tree, today's linux-next build (x86_64
allmodconfig) failed like this:

In file included from include/linux/bitmap.h:9,
from include/linux/cpumask.h:12,
from arch/x86/include/asm/paravirt.h:17,
from arch/x86/include/asm/irqflags.h:63,
from include/linux/irqflags.h:16,
from include/linux/rcupdate.h:26,
from include/linux/rculist.h:11,
from include/linux/pid.h:5,
from include/linux/sched.h:14,
from include/linux/ratelimit.h:6,
from include/linux/dev_printk.h:16,
from include/linux/device.h:15,
from drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c:5:
drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c: In function 'npcmgpio_irq_handler':
include/linux/find.h:40:23: error: array subscript 'long unsigned int[0]' is partly outside array bounds of 'u32[1]' {aka 'unsigned int[1]'} [-Werror=array-bounds]
40 | val = *addr & GENMASK(size - 1, offset);
| ^~~~~
drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c:219:13: note: while referencing 'sts'
219 | u32 sts, en, bit;
| ^~~

Caused by commit

3b588e43ee5c ("pinctrl: nuvoton: add NPCM7xx pinctrl and GPIO driver")

probably exposed by commit

a1d1e0e3d80a ("pinctrl: nuvoton: Add driver for WPCM450")

from the pinctrl tree and enabling -Werror=array-bounds.

I have applied the following hack patch for today.

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Wed, 16 Mar 2022 18:12:14 +1100
Subject: [PATCH] fixup for "pinctrl: nuvoton: add NPCM7xx pinctrl and GPIO driver"

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
index 41136f63014a..fddcb7d6bdf4 100644
--- a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
+++ b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
@@ -216,7 +216,8 @@ static void npcmgpio_irq_handler(struct irq_desc *desc)
struct gpio_chip *gc;
struct irq_chip *chip;
struct npcm7xx_gpio *bank;
- u32 sts, en, bit;
+ unsigned long sts, bit;
+ u32 en;

gc = irq_desc_get_handler_data(desc);
bank = gpiochip_get_data(gc);
@@ -225,7 +226,7 @@ static void npcmgpio_irq_handler(struct irq_desc *desc)
chained_irq_enter(chip, desc);
sts = ioread32(bank->base + NPCM7XX_GP_N_EVST);
en = ioread32(bank->base + NPCM7XX_GP_N_EVEN);
- dev_dbg(bank->gc.parent, "==> got irq sts %.8x %.8x\n", sts,
+ dev_dbg(bank->gc.parent, "==> got irq sts %.8lx %.8x\n", sts,
en);

sts &= en;
--
2.34.1

--
Cheers,
Stephen Rothwell

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