Re: linux-next: Tree for Mar 27

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On 3/27/20 1:07 AM, Stephen Rothwell wrote:
> Hi all,
> 
> Changes since 20200326:
> 

on i386, UML defconfig build fails with: (mostly get_user() variants)


  CC      kernel/signal.o
In file included from ../include/linux/kernel.h:15:0,
                 from ../include/asm-generic/bug.h:19,
                 from ./arch/um/include/generated/asm/bug.h:1,
                 from ../include/linux/bug.h:5,
                 from ../include/linux/mmdebug.h:5,
                 from ../include/linux/gfp.h:5,
                 from ../include/linux/slab.h:15,
                 from ../kernel/signal.c:14:
../kernel/signal.c: In function 'print_fatal_signal':
../kernel/signal.c:1250:33: error: 'struct pt_regs' has no member named 'ip'
  pr_info("code at %08lx: ", regs->ip);
                                 ^
../include/linux/printk.h:310:34: note: in definition of macro 'pr_info'
  printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
                                  ^~~~~~~~~~~
In file included from ../arch/um/include/asm/uaccess.h:39:0,
                 from ../include/linux/uaccess.h:11,
                 from ../include/linux/sched/task.h:11,
                 from ../kernel/signal.c:20:
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:196:28: note: in definition of macro 'get_user'
  const void __user *__p = (ptr);    \
                            ^~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:93:66: note: in definition of macro 'access_ok'
 #define access_ok(addr, size) __access_ok((unsigned long)(addr),(size))
                                                                  ^~~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:158:19: note: in definition of macro '__get_user'
  switch (sizeof(*(ptr))) {    \
                   ^~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:209:47: note: in definition of macro '__get_user_fn'
 #define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k)
                                               ^~
../include/asm-generic/uaccess.h:199:3: note: in expansion of macro '__get_user'
   __get_user((x), (__typeof__(*(ptr)) __user *)__p) :\
   ^~~~~~~~~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:209:51: note: in definition of macro '__get_user_fn'
 #define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k)
                                                   ^
../include/asm-generic/uaccess.h:199:3: note: in expansion of macro '__get_user'
   __get_user((x), (__typeof__(*(ptr)) __user *)__p) :\
   ^~~~~~~~~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:163:32: note: in definition of macro '__get_user'
   (x) = *(__force __typeof__(*(ptr)) *) &__x; \
                                ^~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:209:47: note: in definition of macro '__get_user_fn'
 #define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k)
                                               ^~
../include/asm-generic/uaccess.h:199:3: note: in expansion of macro '__get_user'
   __get_user((x), (__typeof__(*(ptr)) __user *)__p) :\
   ^~~~~~~~~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:209:51: note: in definition of macro '__get_user_fn'
 #define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k)
                                                   ^
../include/asm-generic/uaccess.h:199:3: note: in expansion of macro '__get_user'
   __get_user((x), (__typeof__(*(ptr)) __user *)__p) :\
   ^~~~~~~~~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:170:32: note: in definition of macro '__get_user'
   (x) = *(__force __typeof__(*(ptr)) *) &__x; \
                                ^~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:209:47: note: in definition of macro '__get_user_fn'
 #define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k)
                                               ^~
../include/asm-generic/uaccess.h:199:3: note: in expansion of macro '__get_user'
   __get_user((x), (__typeof__(*(ptr)) __user *)__p) :\
   ^~~~~~~~~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:209:51: note: in definition of macro '__get_user_fn'
 #define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k)
                                                   ^
../include/asm-generic/uaccess.h:199:3: note: in expansion of macro '__get_user'
   __get_user((x), (__typeof__(*(ptr)) __user *)__p) :\
   ^~~~~~~~~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:177:32: note: in definition of macro '__get_user'
   (x) = *(__force __typeof__(*(ptr)) *) &__x; \
                                ^~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:209:47: note: in definition of macro '__get_user_fn'
 #define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k)
                                               ^~
../include/asm-generic/uaccess.h:199:3: note: in expansion of macro '__get_user'
   __get_user((x), (__typeof__(*(ptr)) __user *)__p) :\
   ^~~~~~~~~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:209:51: note: in definition of macro '__get_user_fn'
 #define __get_user_fn(sz, u, k) __get_user_fn(sz, u, k)
                                                   ^
../include/asm-generic/uaccess.h:199:3: note: in expansion of macro '__get_user'
   __get_user((x), (__typeof__(*(ptr)) __user *)__p) :\
   ^~~~~~~~~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:184:32: note: in definition of macro '__get_user'
   (x) = *(__force __typeof__(*(ptr)) *) &__x; \
                                ^~~
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~
../kernel/signal.c:1256:45: error: 'struct pt_regs' has no member named 'ip'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
                                             ^
../include/asm-generic/uaccess.h:200:24: note: in definition of macro 'get_user'
   ((x) = (__typeof__(*(ptr)))0,-EFAULT);  \
                        ^~~
../include/asm-generic/uaccess.h:200:31: warning: left-hand operand of comma expression has no effect [-Wunused-value]
   ((x) = (__typeof__(*(ptr)))0,-EFAULT);  \
                               ^
../kernel/signal.c:1256:8: note: in expansion of macro 'get_user'
    if (get_user(insn, (unsigned char *)(regs->ip + i)))
        ^~~~~~~~


-- 
~Randy
Reported-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>



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