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Message-ID: <202210211352.fYh3MGHq-lkp@intel.com>
Date: Fri, 21 Oct 2022 13:22:09 +0800
From: kernel test robot <lkp@...el.com>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org
Subject: [arm-integrator:kernel-in-vmalloc-v6.1-rc1 26/26]
arch/arm/mm/idmap.c:153:34: error: incompatible integer to pointer
conversion passing 'unsigned int' to parameter of type 'const char *'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git kernel-in-vmalloc-v6.1-rc1
head: dd354395fff14a411a8b85bd2a9d70e3a43e393b
commit: dd354395fff14a411a8b85bd2a9d70e3a43e393b [26/26] HACK: map in the first section of the kernel in the identity map
config: arm-randconfig-r003-20221019
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git/commit/?id=dd354395fff14a411a8b85bd2a9d70e3a43e393b
git remote add arm-integrator https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-integrator.git
git fetch --no-tags arm-integrator kernel-in-vmalloc-v6.1-rc1
git checkout dd354395fff14a411a8b85bd2a9d70e3a43e393b
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash arch/arm/mm/
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 >>):
arch/arm/mm/idmap.c:129:53: warning: format specifies type 'unsigned long long' but the argument has type 'pmdval_t *' (aka 'unsigned int *') [-Wformat]
pr_info("pgd%d @%08x = 0x%016llx\n", i, (u32)tmp, *tmp);
~~~~~~~ ^~~~
include/linux/printk.h:530:34: note: expanded from macro 'pr_info'
printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:457:60: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:429:19: note: expanded from macro 'printk_index_wrap'
_p_func(_fmt, ##__VA_ARGS__); \
~~~~ ^~~~~~~~~~~
arch/arm/mm/idmap.c:137:77: warning: format specifies type 'unsigned long long' but the argument has type 'pmd_t' (aka 'unsigned int') [-Wformat]
pr_info(" p4d/pud/pmd%d @%08x = %016llx, address %08x\n", j, (u32)pmd, *pmd, addr);
~~~~~~~ ^~~~
%016x
include/linux/printk.h:530:34: note: expanded from macro 'pr_info'
printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:457:60: note: expanded from macro 'printk'
#define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
include/linux/printk.h:429:19: note: expanded from macro 'printk_index_wrap'
_p_func(_fmt, ##__VA_ARGS__); \
~~~~ ^~~~~~~~~~~
>> arch/arm/mm/idmap.c:153:34: error: incompatible integer to pointer conversion passing 'unsigned int' to parameter of type 'const char *' [-Wint-conversion]
identity_mapping_add(idmap_pgd, 0x80000000,
^~~~~~~~~~
arch/arm/mm/idmap.c:86:58: note: passing argument to parameter 'text_start' here
static void identity_mapping_add(pgd_t *pgd, const char *text_start,
^
arch/arm/mm/idmap.c:154:9: error: incompatible integer to pointer conversion passing 'unsigned int' to parameter of type 'const char *' [-Wint-conversion]
0x801fffff, 0);
^~~~~~~~~~
arch/arm/mm/idmap.c:87:18: note: passing argument to parameter 'text_end' here
const char *text_end, unsigned long prot)
^
2 warnings and 2 errors generated.
vim +153 arch/arm/mm/idmap.c
143
144 static int __init init_static_idmap(void)
145 {
146 idmap_pgd = pgd_alloc(&init_mm);
147 if (!idmap_pgd)
148 return -ENOMEM;
149
150 pr_info("Created LPAE PGD pgd = %08x, *pgd = %08x\n",
151 (u32)idmap_pgd, (u32)*idmap_pgd);
152
> 153 identity_mapping_add(idmap_pgd, 0x80000000,
154 0x801fffff, 0);
155 identity_mapping_add(idmap_pgd, __idmap_text_start,
156 __idmap_text_end, 0);
157
158 //dump_pagetable(idmap_pgd);
159
160 /* Flush L1 for the hardware to see this page table content */
161 if (!(elf_hwcap & HWCAP_LPAE))
162 flush_cache_louis();
163
164 return 0;
165 }
166 early_initcall(init_static_idmap);
167
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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