arch/powerpc/platforms/embedded6xx/mvme5100.c:140:65: error: passing argument 5 of 'early_read_config_dword' from incompatible pointer type

From: kernel test robot
Date: Tue Nov 07 2023 - 14:19:41 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: be3ca57cfb777ad820c6659d52e60bbdd36bf5ff
commit: ea8daa7b97842aab8507b5b5b1e3226cf2d514a6 kbuild: Add option to turn incompatible pointer check into error
date: 8 years ago
config: powerpc-randconfig-c003-20220718 (https://download.01.org/0day-ci/archive/20231108/202311080209.eVnG4LWq-lkp@xxxxxxxxx/config)
compiler: powerpc-linux-gcc (GCC) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231108/202311080209.eVnG4LWq-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311080209.eVnG4LWq-lkp@xxxxxxxxx/

All errors (new ones prefixed by >>):

| ^~~~~~
include/linux/dma-mapping.h: In function 'dma_unmap_page':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/dma-mapping.h:207:9: note: in expansion of macro 'BUG_ON'
207 | BUG_ON(!valid_dma_direction(dir));
| ^~~~~~
include/linux/dma-mapping.h: In function 'dma_sync_single_for_cpu':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/dma-mapping.h:219:9: note: in expansion of macro 'BUG_ON'
219 | BUG_ON(!valid_dma_direction(dir));
| ^~~~~~
include/linux/dma-mapping.h: In function 'dma_sync_single_for_device':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/dma-mapping.h:231:9: note: in expansion of macro 'BUG_ON'
231 | BUG_ON(!valid_dma_direction(dir));
| ^~~~~~
include/linux/dma-mapping.h: In function 'dma_sync_single_range_for_cpu':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/dma-mapping.h:245:9: note: in expansion of macro 'BUG_ON'
245 | BUG_ON(!valid_dma_direction(dir));
| ^~~~~~
include/linux/dma-mapping.h: In function 'dma_sync_single_range_for_device':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/dma-mapping.h:259:9: note: in expansion of macro 'BUG_ON'
259 | BUG_ON(!valid_dma_direction(dir));
| ^~~~~~
include/linux/dma-mapping.h: In function 'dma_sync_sg_for_cpu':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/dma-mapping.h:271:9: note: in expansion of macro 'BUG_ON'
271 | BUG_ON(!valid_dma_direction(dir));
| ^~~~~~
include/linux/dma-mapping.h: In function 'dma_sync_sg_for_device':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/dma-mapping.h:283:9: note: in expansion of macro 'BUG_ON'
283 | BUG_ON(!valid_dma_direction(dir));
| ^~~~~~
include/linux/dma-mapping.h: In function 'dma_mmap_attrs':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/dma-mapping.h:325:9: note: in expansion of macro 'BUG_ON'
325 | BUG_ON(!ops);
| ^~~~~~
include/linux/dma-mapping.h: In function 'dma_get_sgtable_attrs':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/dma-mapping.h:342:9: note: in expansion of macro 'BUG_ON'
342 | BUG_ON(!ops);
| ^~~~~~
include/linux/dma-mapping.h: In function 'dma_alloc_attrs':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/dma-mapping.h:362:9: note: in expansion of macro 'BUG_ON'
362 | BUG_ON(!ops);
| ^~~~~~
include/linux/dma-mapping.h: In function 'dma_free_attrs':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/dma-mapping.h:383:9: note: in expansion of macro 'BUG_ON'
383 | BUG_ON(!ops);
| ^~~~~~
include/linux/seq_file.h: In function 'seq_get_buf':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/seq_file.h:70:9: note: in expansion of macro 'BUG_ON'
70 | BUG_ON(m->count > m->size);
| ^~~~~~
include/linux/seq_file.h: In function 'seq_commit':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
include/linux/seq_file.h:93:17: note: in expansion of macro 'BUG_ON'
93 | BUG_ON(m->count + num > m->size);
| ^~~~~~
arch/powerpc/platforms/embedded6xx/mvme5100.c: In function 'mvme5100_pic_init':
include/asm-generic/bug.h:145:47: warning: suggest braces around empty body in an 'if' statement [-Wempty-body]
145 | #define BUG_ON(condition) do { if (condition) ; } while (0)
| ^
arch/powerpc/platforms/embedded6xx/mvme5100.c:73:9: note: in expansion of macro 'BUG_ON'
73 | BUG_ON(mpic == NULL);
| ^~~~~~
arch/powerpc/platforms/embedded6xx/mvme5100.c: In function 'mvme5100_add_bridge':
>> arch/powerpc/platforms/embedded6xx/mvme5100.c:140:65: error: passing argument 5 of 'early_read_config_dword' from incompatible pointer type [-Werror=incompatible-pointer-types]
140 | early_read_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_1, &pci_membase);
| ^~~~~~~~~~~~
| |
| phys_addr_t * {aka long long unsigned int *}
In file included from arch/powerpc/platforms/embedded6xx/mvme5100.c:23:
arch/powerpc/include/asm/pci-bridge.h:139:53: note: expected 'u32 *' {aka 'unsigned int *'} but argument is of type 'phys_addr_t *' {aka 'long long unsigned int *'}
139 | int dev_fn, int where, u32 *val);
| ~~~~~^~~
In file included from include/linux/printk.h:6,
from include/linux/kernel.h:13,
from include/linux/list.h:8,
from include/linux/kobject.h:20,
from include/linux/device.h:17,
from include/linux/of_platform.h:14,
from arch/powerpc/platforms/embedded6xx/mvme5100.c:20:
include/linux/kern_levels.h:4:25: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'phys_addr_t' {aka 'long long unsigned int'} [-Wformat=]
4 | #define KERN_SOH "\001" /* ASCII Start Of Header */
| ^~~~~~
include/linux/kern_levels.h:13:25: note: in expansion of macro 'KERN_SOH'
13 | #define KERN_INFO KERN_SOH "6" /* informational */
| ^~~~~~~~
include/linux/printk.h:259:16: note: in expansion of macro 'KERN_INFO'
259 | printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
| ^~~~~~~~~
arch/powerpc/platforms/embedded6xx/mvme5100.c:147:9: note: in expansion of macro 'pr_info'
147 | pr_info("mvme5100_pic_init: pci_membase: %x\n", pci_membase);
| ^~~~~~~
cc1: some warnings being treated as errors

vim +/early_read_config_dword +140 arch/powerpc/platforms/embedded6xx/mvme5100.c

be2019816e4dcd Stephen Chivers 2014-01-09 110
be2019816e4dcd Stephen Chivers 2014-01-09 111 static int __init mvme5100_add_bridge(struct device_node *dev)
be2019816e4dcd Stephen Chivers 2014-01-09 112 {
be2019816e4dcd Stephen Chivers 2014-01-09 113 const int *bus_range;
be2019816e4dcd Stephen Chivers 2014-01-09 114 int len;
be2019816e4dcd Stephen Chivers 2014-01-09 115 struct pci_controller *hose;
be2019816e4dcd Stephen Chivers 2014-01-09 116 unsigned short devid;
be2019816e4dcd Stephen Chivers 2014-01-09 117
be2019816e4dcd Stephen Chivers 2014-01-09 118 pr_info("Adding PCI host bridge %s\n", dev->full_name);
be2019816e4dcd Stephen Chivers 2014-01-09 119
be2019816e4dcd Stephen Chivers 2014-01-09 120 bus_range = of_get_property(dev, "bus-range", &len);
be2019816e4dcd Stephen Chivers 2014-01-09 121
be2019816e4dcd Stephen Chivers 2014-01-09 122 hose = pcibios_alloc_controller(dev);
be2019816e4dcd Stephen Chivers 2014-01-09 123 if (hose == NULL)
be2019816e4dcd Stephen Chivers 2014-01-09 124 return -ENOMEM;
be2019816e4dcd Stephen Chivers 2014-01-09 125
be2019816e4dcd Stephen Chivers 2014-01-09 126 hose->first_busno = bus_range ? bus_range[0] : 0;
be2019816e4dcd Stephen Chivers 2014-01-09 127 hose->last_busno = bus_range ? bus_range[1] : 0xff;
be2019816e4dcd Stephen Chivers 2014-01-09 128
be2019816e4dcd Stephen Chivers 2014-01-09 129 setup_indirect_pci(hose, 0xfe000cf8, 0xfe000cfc, 0);
be2019816e4dcd Stephen Chivers 2014-01-09 130
be2019816e4dcd Stephen Chivers 2014-01-09 131 pci_process_bridge_OF_ranges(hose, dev, 1);
be2019816e4dcd Stephen Chivers 2014-01-09 132
be2019816e4dcd Stephen Chivers 2014-01-09 133 early_read_config_word(hose, 0, 0, PCI_DEVICE_ID, &devid);
be2019816e4dcd Stephen Chivers 2014-01-09 134
be2019816e4dcd Stephen Chivers 2014-01-09 135 if (devid != PCI_DEVICE_ID_MOTOROLA_HAWK) {
be2019816e4dcd Stephen Chivers 2014-01-09 136 pr_err("HAWK PHB not present?\n");
be2019816e4dcd Stephen Chivers 2014-01-09 137 return 0;
be2019816e4dcd Stephen Chivers 2014-01-09 138 }
be2019816e4dcd Stephen Chivers 2014-01-09 139
be2019816e4dcd Stephen Chivers 2014-01-09 @140 early_read_config_dword(hose, 0, 0, PCI_BASE_ADDRESS_1, &pci_membase);
be2019816e4dcd Stephen Chivers 2014-01-09 141
be2019816e4dcd Stephen Chivers 2014-01-09 142 if (pci_membase == 0) {
be2019816e4dcd Stephen Chivers 2014-01-09 143 pr_err("HAWK PHB mibar not correctly set?\n");
be2019816e4dcd Stephen Chivers 2014-01-09 144 return 0;
be2019816e4dcd Stephen Chivers 2014-01-09 145 }
be2019816e4dcd Stephen Chivers 2014-01-09 146
be2019816e4dcd Stephen Chivers 2014-01-09 147 pr_info("mvme5100_pic_init: pci_membase: %x\n", pci_membase);
be2019816e4dcd Stephen Chivers 2014-01-09 148
be2019816e4dcd Stephen Chivers 2014-01-09 149 return 0;
be2019816e4dcd Stephen Chivers 2014-01-09 150 }
be2019816e4dcd Stephen Chivers 2014-01-09 151

:::::: The code at line 140 was first introduced by commit
:::::: be2019816e4dcdb02493da332b65a8b68b70106c powerpc/embedded6xx: Add support for Motorola/Emerson MVME5100

:::::: TO: Stephen Chivers <schivers@xxxxxxxxxxxxxxxxxxxxx>
:::::: CC: Scott Wood <scottwood@xxxxxxxxxxxxx>

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