tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: c0747ad363fff90c2edf490fc089e3ae0920b410 commit: 0c26159352ba1cdc5a8c8d74131cc19cdfdf9371 nfp: bpf: xdp_adjust_tail support date: 6 weeks ago config: i386-randconfig-sb0-09171405 (attached as .config) compiler: gcc-4.9 (Debian 4.9.4-2) 4.9.4 reproduce: git checkout 0c26159352ba1cdc5a8c8d74131cc19cdfdf9371 # save the attached .config to linux build tree make ARCH=i386
All error/warnings (new ones prefixed by >>):
In file included from include/asm-generic/bug.h:5:0,
from arch/x86/include/asm/bug.h:83,
from include/linux/bug.h:5,
from drivers/net/ethernet/netronome/nfp/bpf/jit.c:36:
In function 'adjust_tail.isra.11',
inlined from 'call' at
drivers/net/ethernet/netronome/nfp/bpf/jit.c:3090:3:
>> include/linux/compiler.h:339:38: error: call to '__compiletime_assert_1650'
>> declared with attribute error: BUILD_BUG_ON failed: plen_reg(nfp_prog) !=
>> reg_b(STATIC_REG_PKT_LEN)
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^
include/linux/compiler.h:319:4: note: in definition of macro
'__compiletime_assert'
prefix ## suffix(); \
^
include/linux/compiler.h:339:2: note: in expansion of macro
'_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^
include/linux/build_bug.h:45:37: note: in expansion of macro
'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^
include/linux/build_bug.h:69:2: note: in expansion of macro
'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition)
^
>> drivers/net/ethernet/netronome/nfp/bpf/jit.c:1650:2: note: in expansion of
>> macro 'BUILD_BUG_ON'
BUILD_BUG_ON(plen_reg(nfp_prog) != reg_b(STATIC_REG_PKT_LEN));
^
vim +/__compiletime_assert_1650 +339 include/linux/compiler.h
9a8ab1c3 Daniel Santos 2013-02-21 325
9a8ab1c3 Daniel Santos 2013-02-21 326 #define _compiletime_assert(condition,
msg, prefix, suffix) \
9a8ab1c3 Daniel Santos 2013-02-21 327 __compiletime_assert(condition,
msg, prefix, suffix)
9a8ab1c3 Daniel Santos 2013-02-21 328
9a8ab1c3 Daniel Santos 2013-02-21 329 /**
9a8ab1c3 Daniel Santos 2013-02-21 330 * compiletime_assert - break build and
emit msg if condition is false
9a8ab1c3 Daniel Santos 2013-02-21 331 * @condition: a compile-time constant
condition to check
9a8ab1c3 Daniel Santos 2013-02-21 332 * @msg: a message to emit if
condition is false
9a8ab1c3 Daniel Santos 2013-02-21 333 *
9a8ab1c3 Daniel Santos 2013-02-21 334 * In tradition of POSIX assert, this
macro will break the build if the
9a8ab1c3 Daniel Santos 2013-02-21 335 * supplied condition is *false*,
emitting the supplied error message if the
9a8ab1c3 Daniel Santos 2013-02-21 336 * compiler has support to do so.
9a8ab1c3 Daniel Santos 2013-02-21 337 */
9a8ab1c3 Daniel Santos 2013-02-21 338 #define compiletime_assert(condition,
msg) \
9a8ab1c3 Daniel Santos 2013-02-21 @339 _compiletime_assert(condition,
msg, __compiletime_assert_, __LINE__)
9a8ab1c3 Daniel Santos 2013-02-21 340
:::::: The code at line 339 was first introduced by commit
:::::: 9a8ab1c39970a4938a72d94e6fd13be88a797590 bug.h, compiler.h: introduce
compiletime_assert & BUILD_BUG_ON_MSG
:::::: TO: Daniel Santos <daniel.san...@pobox.com>
:::::: CC: Linus Torvalds <torva...@linux-foundation.org>
---
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