[uclinux-h8:h8300-next 10/15] drivers/irqchip/irq-renesas-h8s.c:104:18: sparse: sparse: incorrect type in assignment (different address spaces)
From: kernel test robot
Date: Wed May 11 2022 - 07:06:52 EST
tree: git://git.sourceforge.jp/gitroot/uclinux-h8/linux h8300-next
head: 096e0fe4084eb9c2c12c272688d1703921811cd7
commit: f45fdb7acce2a2cac49541b914b88f1e5a869052 [10/15] irq-renesas-h8s: fix interrupt handling.
config: h8300-randconfig-s032-20220509 (https://download.01.org/0day-ci/archive/20220511/202205111817.XjODrOki-lkp@xxxxxxxxx/config)
compiler: h8300-linux-gcc (GCC) 11.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-dirty
git remote add uclinux-h8 git://git.sourceforge.jp/gitroot/uclinux-h8/linux
git fetch --no-tags uclinux-h8 h8300-next
git checkout f45fdb7acce2a2cac49541b914b88f1e5a869052
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=h8300 SHELL=/bin/bash drivers/irqchip/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
sparse warnings: (new ones prefixed by >>)
drivers/irqchip/irq-renesas-h8s.c:42:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *addr @@ got void * @@
drivers/irqchip/irq-renesas-h8s.c:42:14: sparse: expected void [noderef] __iomem *addr
drivers/irqchip/irq-renesas-h8s.c:42:14: sparse: got void *
drivers/irqchip/irq-renesas-h8s.c:56:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *addr @@ got void * @@
drivers/irqchip/irq-renesas-h8s.c:56:14: sparse: expected void [noderef] __iomem *addr
drivers/irqchip/irq-renesas-h8s.c:56:14: sparse: got void *
drivers/irqchip/irq-renesas-h8s.c:66:43: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *isr_addr @@ got void * @@
drivers/irqchip/irq-renesas-h8s.c:66:43: sparse: expected void [noderef] __iomem *isr_addr
drivers/irqchip/irq-renesas-h8s.c:66:43: sparse: got void *
>> drivers/irqchip/irq-renesas-h8s.c:104:18: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *static [toplevel] ipr_base @@ got void [noderef] __iomem * @@
drivers/irqchip/irq-renesas-h8s.c:104:18: sparse: expected void *static [toplevel] ipr_base
drivers/irqchip/irq-renesas-h8s.c:104:18: sparse: got void [noderef] __iomem *
>> drivers/irqchip/irq-renesas-h8s.c:105:18: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *static [toplevel] icr_base @@ got void [noderef] __iomem * @@
drivers/irqchip/irq-renesas-h8s.c:105:18: sparse: expected void *static [toplevel] icr_base
drivers/irqchip/irq-renesas-h8s.c:105:18: sparse: got void [noderef] __iomem *
>> drivers/irqchip/irq-renesas-h8s.c:111:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@
drivers/irqchip/irq-renesas-h8s.c:111:43: sparse: expected void const volatile [noderef] __iomem *addr
drivers/irqchip/irq-renesas-h8s.c:111:43: sparse: got void *
drivers/irqchip/irq-renesas-h8s.c:113:39: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@
drivers/irqchip/irq-renesas-h8s.c:113:39: sparse: expected void const volatile [noderef] __iomem *addr
drivers/irqchip/irq-renesas-h8s.c:113:39: sparse: got void *
drivers/irqchip/irq-renesas-h8s.c: note: in included file (through include/linux/io.h, include/linux/irq.h):
arch/h8300/include/asm/io.h:20:18: sparse: sparse: cast removes address space '__iomem' of expression
arch/h8300/include/asm/io.h:38:11: sparse: sparse: cast removes address space '__iomem' of expression
arch/h8300/include/asm/io.h:20:18: sparse: sparse: cast removes address space '__iomem' of expression
arch/h8300/include/asm/io.h:38:11: sparse: sparse: cast removes address space '__iomem' of expression
arch/h8300/include/asm/io.h:20:18: sparse: sparse: cast removes address space '__iomem' of expression
arch/h8300/include/asm/io.h:38:11: sparse: sparse: cast removes address space '__iomem' of expression
arch/h8300/include/asm/io.h:38:11: sparse: sparse: cast removes address space '__iomem' of expression
arch/h8300/include/asm/io.h:38:11: sparse: sparse: cast removes address space '__iomem' of expression
vim +104 drivers/irqchip/irq-renesas-h8s.c
34
35 static void h8s_disable_irq(struct irq_data *data)
36 {
37 int pos;
38 void __iomem *addr;
39 unsigned short pri;
40 int irq = data->irq;
41
> 42 addr = IPRA + ((ipr_table[irq - 16] & 0xf0) >> 3);
43 pos = (ipr_table[irq - 16] & 0x0f) * 4;
44 pri = ~(0x000f << pos);
45 pri &= __raw_readw(addr);
46 __raw_writew(pri, addr);
47 }
48
49 static void h8s_enable_irq(struct irq_data *data)
50 {
51 int pos;
52 void __iomem *addr;
53 unsigned short pri;
54 int irq = data->irq;
55
> 56 addr = IPRA + ((ipr_table[irq - 16] & 0xf0) >> 3);
57 pos = (ipr_table[irq - 16] & 0x0f) * 4;
58 pri = ~(0x000f << pos);
59 pri &= __raw_readw(addr);
60 pri |= 1 << pos;
61 __raw_writew(pri, addr);
62 }
63
64 static void h8s_ack_irq(struct irq_data *data)
65 {
> 66 void __iomem *isr_addr = icr_base + 4;
67 int irq = data->irq;
68 uint16_t isr;
69
70 if (irq >= 16 && irq < 32) {
71 irq -= 16;
72 isr = __raw_readw(isr_addr);
73 isr &= ~(1 << irq);
74 __raw_writew(isr, isr_addr);
75 }
76 }
77
78 struct irq_chip h8s_irq_chip = {
79 .name = "H8S-INTC",
80 .irq_enable = h8s_enable_irq,
81 .irq_disable = h8s_disable_irq,
82 .irq_ack = h8s_ack_irq,
83 };
84
85 static __init int irq_map(struct irq_domain *h, unsigned int virq,
86 irq_hw_number_t hw_irq_num)
87 {
88 irq_set_chip_and_handler(virq, &h8s_irq_chip, handle_simple_irq);
89
90 return 0;
91 }
92
93 static const struct irq_domain_ops irq_ops = {
94 .map = irq_map,
95 .xlate = irq_domain_xlate_onecell,
96 };
97
98 static int __init h8s_intc_of_init(struct device_node *intc,
99 struct device_node *parent)
100 {
101 struct irq_domain *domain;
102 int n;
103
> 104 ipr_base = of_iomap(intc, 0);
> 105 icr_base = of_iomap(intc, 1);
106 BUG_ON(!ipr_base || !icr_base);
107
108 /* All interrupt priority is 0 (disable) */
109 /* IPRA to IPRK */
110 for (n = 0; n <= 'k' - 'a'; n++)
> 111 __raw_writew(0x0000, IPRA + (n * 2));
112
113 __raw_writew(0xffff, icr_base + 2);
114 domain = irq_domain_add_linear(intc, NR_IRQS, &irq_ops, NULL);
115 BUG_ON(!domain);
116 irq_set_default_host(domain);
117 return 0;
118 }
119
--
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