Re: [PATCH] sparse: use static inline for __chk_{user,io}_ptr()

From: kernel test robot
Date: Wed Jul 01 2020 - 14:36:44 EST

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Hi Luc,

I love your patch! Perhaps something
[auto build test WARNING on next-20200626] [cannot apply to linux/master linus/master [If your patch is applied to the And when submitting patch, we suggest to use .config.gz Description: application/gzipPaul Gortmaker: "[PATCH] sched: nohz: stop passing around unused "ticks" parameter." kernel test robot: "drivers/net/ethernet/freescale/enetc/enetc_qos.c:491:30: sparse: sparse: incorrect type in assignment (different base types)" href="date.html#01051">[ date ] [ thread ] [ subject ] [ author ] to improve: v5.8-rc2 v5.8-rc1 v5.7 v5.8-rc3] wrong git tree, kindly drop us a note. as documented in om/docs/git-format-patch">https://git-scm.com/docs/git-format-patch] ithub.com/0day-ci/linux/commits/Luc-Van-Oostenryck/sparse-use-static-inline-for-__chk_-user-io-_ptr/20200628-152401">https://github.com/0day-ci/linux/commits/Luc-Van-Oostenryck/sparse-use-static-inline-for-__chk_-user-io-_ptr/20200628-152401 1108603 (attached as .config) 9.3.0 62-dirty to linux build tree -D__CHECK_ENDIAN__' ARCH=x86_64 following tag as appropriate xxxxxx> by >>) sparse: sparse: cast removes address space '__user' of expression sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got unsigned long long [usertype] * @@ expected void const volatile [noderef] __user *ptr got unsigned long long [usertype] * sparse: sparse: cast removes address space '__user' of expression sparse: sparse: cast removes address space '__user' of expression sparse: sparse: cast removes address space '__user' of expression sparse: sparse: cast removes address space '__user' of expression sparse: sparse: cast removes address space '__user' of expression sparse: sparse: cast removes address space '__user' of expression sparse: sparse: cast removes address space '__user' of expression sparse: sparse: cast removes address space '__user' of expression sparse: sparse: cast removes address space '__user' of expression sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got char *buf @@ sparse: expected void const volatile [noderef] __user *ptr got char *buf sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got char const *buf @@ expected void const volatile [noderef] __user *ptr got char const *buf sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got char const * @@ sparse: expected void const volatile [noderef] __user *ptr got char const * sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __user *to @@ got struct watchdog_info * @@ expected void [noderef] __user *to got struct watchdog_info * sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got int * @@ expected void const volatile [noderef] __user *ptr got int * sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got int * @@ expected void const volatile [noderef] __user *ptr got int * sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got int * @@ expected void const volatile [noderef] __user *ptr got int * sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __user *ptr @@ got int * @@ expected void const volatile [noderef] __user *ptr got int * sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) @@ expected long ( *write )( ... ) @@ got long ( * )( ... ) @@ expected long ( *write )( ... ) got long ( * )( ... ) Linus Torvalds 2005-04-16 299 Al Viro 2012-11-09 300 int ia32_setup_rt_frame(int sig, struct ksignal *ksig, Linus Torvalds 2005-04-16 301 compat_sigset_t *set, struct pt_regs *regs) Linus Torvalds 2005-04-16 302 { Hiroshi Shimamoto 2008-12-17 303 struct rt_sigframe_ia32 __user *frame; Roland McGrath 2008-01-30 304 void __user *restorer; Al Viro 2020-02-15 305 void __user *fp = NULL; Linus Torvalds 2005-04-16 306 Al Viro 2020-02-15 307 /* unsafe_put_user optimizes that into a single 8 byte store */ Thomas Gleixner 2008-01-30 308 static const struct { Thomas Gleixner 2008-01-30 309 u8 movl; Thomas Gleixner 2008-01-30 310 u32 val; Thomas Gleixner 2008-01-30 311 u16 int80; Hiroshi Shimamoto 2008-11-11 312 u8 pad; Thomas Gleixner 2008-01-30 313 } __attribute__((packed)) code = { Thomas Gleixner 2008-01-30 314 0xb8, Thomas Gleixner 2008-01-30 315 __NR_ia32_rt_sigreturn, Thomas Gleixner 2008-01-30 316 0x80cd, Thomas Gleixner 2008-01-30 317 0, Thomas Gleixner 2008-01-30 318 }; Thomas Gleixner 2008-01-30 319 Al Viro 2020-02-15 320 frame = get_sigframe(ksig, regs, sizeof(*frame), &fp); Linus Torvalds 2005-04-16 321 Al Viro 2020-02-15 322 if (!user_access_begin(frame, sizeof(*frame))) Hiroshi Shimamoto 2008-09-12 323 return -EFAULT; Linus Torvalds 2005-04-16 324 Al Viro 2020-02-15 325 unsafe_put_user(sig, &frame->sig, Efault); Al Viro 2020-02-15 326 unsafe_put_user(ptr_to_compat(&frame->info), &frame->pinfo, Efault); Al Viro 2020-02-15 327 unsafe_put_user(ptr_to_compat(&frame->uc), &frame->puc, Efault); Linus Torvalds 2005-04-16 328 Linus Torvalds 2005-04-16 329 /* Create the ucontext. */ Marco Elver 2019-07-11 330 if (static_cpu_has(X86_FEATURE_XSAVE)) Al Viro 2020-02-15 331 unsafe_put_user(UC_FP_XSTATE, &frame->uc.uc_flags, Efault); Suresh Siddha 2008-07-29 332 else Al Viro 2020-02-15 333 unsafe_put_user(0, &frame->uc.uc_flags, Efault); Al Viro 2020-02-15 334 unsafe_put_user(0, &frame->uc.uc_link, Efault); Al Viro 2020-02-15 335 unsafe_compat_save_altstack(&frame->uc.uc_stack, regs->sp, Efault); Linus Torvalds 2005-04-16 336 Al Viro 2012-11-09 337 if (ksig->ka.sa.sa_flags & SA_RESTORER) Al Viro 2012-11-09 338 restorer = ksig->ka.sa.sa_restorer; Roland McGrath 2008-01-30 339 else Andy Lutomirski 2014-05-05 340 restorer = current->mm->context.vdso + Andy Lutomirski 2015-10-05 341 vdso_image_32.sym___kernel_rt_sigreturn; Al Viro 2020-02-15 342 unsafe_put_user(ptr_to_compat(restorer), &frame->pretcode, Efault); Linus Torvalds 2005-04-16 343 Thomas Gleixner 2008-01-30 344 /* Thomas Gleixner 2008-01-30 345 * Not actually used anymore, but left because some gdb Thomas Gleixner 2008-01-30 346 * versions need it. Thomas Gleixner 2008-01-30 347 */ Al Viro 2020-02-15 348 unsafe_put_user(*((u64 *)&code), (u64 __user *)frame->retcode, Efault); Al Viro 2020-02-15 349 unsafe_put_sigcontext32(&frame->uc.uc_mcontext, fp, regs, set, Efault); Al Viro 2020-02-15 @350 unsafe_put_user(*(__u64 *)set, (__u64 *)&frame->uc.uc_sigmask, Efault); Corporation org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx">https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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