Hi Cyrill,
FYI, there are new compile warnings show up in
commit: 20e61e149ba9a4fe4c4867a76e399879d802e669 prctl: use access_ok() instead of TASK_SIZE in prctl_set_mm()
config: m68k-allmodconfig
All warnings:
kernel/sys.c: In function 'prctl_set_mm':
kernel/sys.c:1868:2: warning: passing argument 2 of 'access_ok' makes pointer from integer without a cast [enabled by default]
arch/m68k/include/asm/uaccess_mm.h:17:19: note: expected 'const void *' but argument is of type 'long unsigned int'
vim +1868 kernel/sys.c
028ee4be (Cyrill Gorcunov 2012-01-12 1852) unsigned long arg4, unsigned long arg5)
028ee4be (Cyrill Gorcunov 2012-01-12 1853) {
028ee4be (Cyrill Gorcunov 2012-01-12 1854) unsigned long rlim = rlimit(RLIMIT_DATA);
028ee4be (Cyrill Gorcunov 2012-01-12 1855) struct mm_struct *mm = current->mm;
fe8c7f5c (Cyrill Gorcunov 2012-05-31 1856) struct vm_area_struct *vma;
fe8c7f5c (Cyrill Gorcunov 2012-05-31 1857) int error;
028ee4be (Cyrill Gorcunov 2012-01-12 1858)
fe8c7f5c (Cyrill Gorcunov 2012-05-31 1859) if (arg5 || (arg4 && opt != PR_SET_MM_AUXV))
028ee4be (Cyrill Gorcunov 2012-01-12 1860) return -EINVAL;
028ee4be (Cyrill Gorcunov 2012-01-12 1861)
79f0713d (Cyrill Gorcunov 2012-03-15 1862) if (!capable(CAP_SYS_RESOURCE))
028ee4be (Cyrill Gorcunov 2012-01-12 1863) return -EPERM;
028ee4be (Cyrill Gorcunov 2012-01-12 1864)
b32dfe37 (Cyrill Gorcunov 2012-05-31 1865) if (opt == PR_SET_MM_EXE_FILE)
b32dfe37 (Cyrill Gorcunov 2012-05-31 1866) return prctl_set_mm_exe_file(mm, (unsigned int)addr);
b32dfe37 (Cyrill Gorcunov 2012-05-31 1867)
20e61e14 (Cyrill Gorcunov 2012-09-26 @1868) if (!access_ok(VERIFY_READ, addr, sizeof(addr)) || addr < mmap_min_addr)
028ee4be (Cyrill Gorcunov 2012-01-12 1869) return -EINVAL;
028ee4be (Cyrill Gorcunov 2012-01-12 1870)
fe8c7f5c (Cyrill Gorcunov 2012-05-31 1871) error = -EINVAL;
fe8c7f5c (Cyrill Gorcunov 2012-05-31 1872)
028ee4be (Cyrill Gorcunov 2012-01-12 1873) down_read(&mm->mmap_sem);
028ee4be (Cyrill Gorcunov 2012-01-12 1874) vma = find_vma(mm, addr);
028ee4be (Cyrill Gorcunov 2012-01-12 1875)
028ee4be (Cyrill Gorcunov 2012-01-12 1876) switch (opt) {
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0-DAY kernel build testing backend Open Source Technology Center
Fengguang Wu, Yuanhan Liu Intel Corporation
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