Hi Andrzej, [auto build test ERROR on v4.4-rc5] [also build test ERROR on next-20151217]
url: https://github.com/0day-ci/linux/commits/Andrzej-Hajda/err-h-add-type-checking-to-IS_ERR_VALUE-macro/20151218-185839 config: i386-randconfig-s1-201550 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=i386 All error/warnings (new ones prefixed by >>): In file included from include/linux/linkage.h:4:0, from include/linux/preempt.h:9, from include/linux/spinlock.h:50, from include/linux/mmzone.h:7, from include/linux/gfp.h:5, from include/linux/mm.h:9, from drivers/char/mem.c:11: drivers/char/mem.c: In function 'memory_lseek': >> include/linux/compiler.h:484:38: error: call to '__compiletime_assert_698' >> declared with attribute error: Invalid IS_ERR_VALUE argument type _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/compiler.h:467:4: note: in definition of macro '__compiletime_assert' prefix ## suffix(); \ ^ include/linux/compiler.h:484:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) ^ include/linux/bug.h:50:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ >> include/linux/err.h:24:5: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG((typeof(x))(-MAX_ERRNO) != (unsigned long)-MAX_ERRNO, "Invalid IS_ERR_VALUE argument type");\ ^ >> drivers/char/mem.c:698:7: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE((unsigned long long)offset)) { ^ vim +/__compiletime_assert_698 +484 include/linux/compiler.h 9a8ab1c3 Daniel Santos 2013-02-21 478 * 9a8ab1c3 Daniel Santos 2013-02-21 479 * In tradition of POSIX assert, this macro will break the build if the 9a8ab1c3 Daniel Santos 2013-02-21 480 * supplied condition is *false*, emitting the supplied error message if the 9a8ab1c3 Daniel Santos 2013-02-21 481 * compiler has support to do so. 9a8ab1c3 Daniel Santos 2013-02-21 482 */ 9a8ab1c3 Daniel Santos 2013-02-21 483 #define compiletime_assert(condition, msg) \ 9a8ab1c3 Daniel Santos 2013-02-21 @484 _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) 9a8ab1c3 Daniel Santos 2013-02-21 485 47933ad4 Peter Zijlstra 2013-11-06 486 #define compiletime_assert_atomic_type(t) \ 47933ad4 Peter Zijlstra 2013-11-06 487 compiletime_assert(__native_word(t), \ :::::: The code at line 484 was first introduced by commit :::::: 9a8ab1c39970a4938a72d94e6fd13be88a797590 bug.h, compiler.h: introduce compiletime_assert & BUILD_BUG_ON_MSG :::::: TO: Daniel Santos <[email protected]> :::::: CC: Linus Torvalds <[email protected]> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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