Messages in this thread | | | Date | Thu, 6 May 2021 22:26:44 +0800 | From | kernel test robot <> | Subject | arch/alpha/lib/csum_partial_copy.c:328:1: error: no previous prototype for 'csum_and_copy_from_user' |
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Hi Al,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 8404c9fbc84b741f66cff7d4934a25dd2c344452 commit: 808b49da54e640cba5c5c92dee658018a529226b alpha: turn csum_partial_copy_from_user() into csum_and_copy_from_user() date: 11 months ago config: alpha-randconfig-r006-20210506 (attached as .config) compiler: alpha-linux-gcc (GCC) 9.3.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=808b49da54e640cba5c5c92dee658018a529226b git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 808b49da54e640cba5c5c92dee658018a529226b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=alpha
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> arch/alpha/lib/csum_partial_copy.c:328:1: error: no previous prototype for 'csum_and_copy_from_user' [-Werror=missing-prototypes] 328 | csum_and_copy_from_user(const void __user *src, void *dst, int len, | ^~~~~~~~~~~~~~~~~~~~~~~ arch/alpha/lib/csum_partial_copy.c:375:1: error: no previous prototype for 'csum_partial_copy_nocheck' [-Werror=missing-prototypes] 375 | csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum) | ^~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors
vim +/csum_and_copy_from_user +328 arch/alpha/lib/csum_partial_copy.c
326 327 __wsum > 328 csum_and_copy_from_user(const void __user *src, void *dst, int len, 329 __wsum sum, int *errp) 330 { 331 unsigned long checksum = (__force u32) sum; 332 unsigned long soff = 7 & (unsigned long) src; 333 unsigned long doff = 7 & (unsigned long) dst; 334 335 if (len) { 336 if (!access_ok(src, len)) { 337 if (errp) *errp = -EFAULT; 338 memset(dst, 0, len); 339 return sum; 340 } 341 if (!doff) { 342 if (!soff) 343 checksum = csum_partial_cfu_aligned( 344 (const unsigned long __user *) src, 345 (unsigned long *) dst, 346 len-8, checksum, errp); 347 else 348 checksum = csum_partial_cfu_dest_aligned( 349 (const unsigned long __user *) src, 350 (unsigned long *) dst, 351 soff, len-8, checksum, errp); 352 } else { 353 unsigned long partial_dest; 354 ldq_u(partial_dest, dst); 355 if (!soff) 356 checksum = csum_partial_cfu_src_aligned( 357 (const unsigned long __user *) src, 358 (unsigned long *) dst, 359 doff, len-8, checksum, 360 partial_dest, errp); 361 else 362 checksum = csum_partial_cfu_unaligned( 363 (const unsigned long __user *) src, 364 (unsigned long *) dst, 365 soff, doff, len-8, checksum, 366 partial_dest, errp); 367 } 368 checksum = from64to16 (checksum); 369 } 370 return (__force __wsum)checksum; 371 } 372 EXPORT_SYMBOL(csum_and_copy_from_user); 373
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