5:26 a.m.
tree: https://github.com/tobetter/linux odroid-5.11.y
head: f22a0a376737d4e5d61f155ab65bde2de835dc2e
commit: d565b01bf703a1fcb33747d62b76676ea1a64c64 [50/88] ODROID-XU4: char: exynos: add
/dev/gpiomem device for rootless user GPIO access
config: riscv-randconfig-r031-20210215 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project
c9439ca36342fb6013187d0a69aef92736951476)
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 riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
#
https://github.com/tobetter/linux/commit/d565b01bf703a1fcb33747d62b76676e...
git remote add tobetter-linux https://github.com/tobetter/linux
git fetch --no-tags tobetter-linux odroid-5.11.y
git checkout d565b01bf703a1fcb33747d62b76676ea1a64c64
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com>
All errors (new ones prefixed by >>):
> drivers/char/exynos-gpiomem.c:121:22: error: implicit declaration
of function 'phys_mem_access_prot' [-Werror,-Wimplicit-function-declaration]
vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff,
^
drivers/char/exynos-gpiomem.c:121:20: error: assigning to 'pgprot_t' from
incompatible type 'int'
vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff,
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2 errors generated.
vim +/phys_mem_access_prot +121 drivers/char/exynos-gpiomem.c
106
107 static int exynos_gpiomem_mmap(struct file *file, struct vm_area_struct *vma)
108 {
109 int gpio_area = 0;
110
111 while (gpio_area < inst->gpio_area_count) {
112 if ((inst->gpio_regs_phys[gpio_area] >> PAGE_SHIFT) ==
vma->vm_pgoff)
113 goto found;
114
115 gpio_area++;
116 }
117
118 return -EACCES;
119
120 found:
121 vma->vm_page_prot = phys_mem_access_prot(file,
vma->vm_pgoff,
122 PAGE_SIZE,
123 vma->vm_page_prot);
124
125 vma->vm_ops = &exynos_gpiomem_vm_ops;
126
127 if (remap_pfn_range(vma, vma->vm_start,
128 vma->vm_pgoff,
129 PAGE_SIZE,
130 vma->vm_page_prot)) {
131 return -EAGAIN;
132 }
133
134 return 0;
135 }
136
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org