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Message-ID: <202206250257.AhQLLkHA-lkp@intel.com>
Date: Sat, 25 Jun 2022 10:58:50 +0800
From: kernel test robot <lkp@...el.com>
To: Jane Chu <jane.chu@...cle.com>
Cc: kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
Dan Williams <dan.j.williams@...el.com>,
Christoph Hellwig <hch@....de>
Subject: drivers/nvdimm/pmem.c:48:20: error: conflicting types for 'to_phys';
have 'phys_addr_t(struct pmem_device *, phys_addr_t)' {aka 'long long
unsigned int(struct pmem_device *, long long unsigned int)'}
Hi Jane,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 92f20ff72066d8d7e2ffb655c2236259ac9d1c5d
commit: 9409c9b6709e59866ed3540b5d7f5291439e4833 pmem: refactor pmem_clear_poison()
date: 6 weeks ago
config: um-allmodconfig
compiler: gcc-11 (Debian 11.3.0-3) 11.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9409c9b6709e59866ed3540b5d7f5291439e4833
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 9409c9b6709e59866ed3540b5d7f5291439e4833
# save the config file
mkdir build_dir && cp config build_dir/.config
make W=1 O=build_dir ARCH=um SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
>> drivers/nvdimm/pmem.c:48:20: error: conflicting types for 'to_phys'; have 'phys_addr_t(struct pmem_device *, phys_addr_t)' {aka 'long long unsigned int(struct pmem_device *, long long unsigned int)'}
48 | static phys_addr_t to_phys(struct pmem_device *pmem, phys_addr_t offset)
| ^~~~~~~
In file included from arch/um/include/asm/page.h:98,
from arch/um/include/asm/thread_info.h:15,
from include/linux/thread_info.h:60,
from include/asm-generic/preempt.h:5,
from ./arch/um/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:55,
from include/linux/wait.h:9,
from include/linux/wait_bit.h:8,
from include/linux/fs.h:6,
from include/linux/highmem.h:5,
from include/linux/bvec.h:10,
from include/linux/blk_types.h:10,
from include/linux/blkdev.h:9,
from drivers/nvdimm/pmem.c:10:
arch/um/include/shared/mem.h:12:29: note: previous definition of 'to_phys' with type 'long unsigned int(void *)'
12 | static inline unsigned long to_phys(void *virt)
| ^~~~~~~
In file included from arch/um/include/asm/page.h:114,
from arch/um/include/asm/thread_info.h:15,
from include/linux/thread_info.h:60,
from include/asm-generic/preempt.h:5,
from ./arch/um/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from include/linux/spinlock.h:55,
from include/linux/wait.h:9,
from include/linux/wait_bit.h:8,
from include/linux/fs.h:6,
from include/linux/highmem.h:5,
from include/linux/bvec.h:10,
from include/linux/blk_types.h:10,
from include/linux/blkdev.h:9,
from drivers/nvdimm/pmem.c:10:
drivers/nvdimm/pmem.c: In function 'pmem_dax_zero_page_range':
>> arch/um/include/asm/page.h:105:20: error: too few arguments to function 'to_phys'
105 | #define __pa(virt) to_phys((void *) (unsigned long) (virt))
| ^~~~~~~
include/asm-generic/memory_model.h:18:46: note: in definition of macro '__pfn_to_page'
18 | #define __pfn_to_page(pfn) (mem_map + ((pfn) - ARCH_PFN_OFFSET))
| ^~~
arch/um/include/asm/pgtable.h:276:40: note: in expansion of macro 'phys_to_pfn'
276 | #define phys_to_page(phys) pfn_to_page(phys_to_pfn(phys))
| ^~~~~~~~~~~
arch/um/include/asm/pgtable.h:277:30: note: in expansion of macro 'phys_to_page'
277 | #define __virt_to_page(virt) phys_to_page(__pa(virt))
| ^~~~~~~~~~~~
arch/um/include/asm/pgtable.h:277:43: note: in expansion of macro '__pa'
277 | #define __virt_to_page(virt) phys_to_page(__pa(virt))
| ^~~~
arch/um/include/asm/pgtable.h:279:28: note: in expansion of macro '__virt_to_page'
279 | #define virt_to_page(addr) __virt_to_page((const unsigned long) addr)
| ^~~~~~~~~~~~~~
arch/um/include/asm/pgtable.h:93:26: note: in expansion of macro 'virt_to_page'
93 | #define ZERO_PAGE(vaddr) virt_to_page(empty_zero_page)
| ^~~~~~~~~~~~
drivers/nvdimm/pmem.c:299:56: note: in expansion of macro 'ZERO_PAGE'
299 | return blk_status_to_errno(pmem_do_write(pmem, ZERO_PAGE(0), 0,
| ^~~~~~~~~
drivers/nvdimm/pmem.c:48:20: note: declared here
48 | static phys_addr_t to_phys(struct pmem_device *pmem, phys_addr_t offset)
| ^~~~~~~
drivers/nvdimm/pmem.c:302:1: error: control reaches end of non-void function [-Werror=return-type]
302 | }
| ^
cc1: some warnings being treated as errors
vim +48 drivers/nvdimm/pmem.c
47
> 48 static phys_addr_t to_phys(struct pmem_device *pmem, phys_addr_t offset)
49 {
50 return pmem->phys_addr + offset;
51 }
52
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