Arnd Bergmann
6a1fa20e97
[ Upstream commitfe204591cc] Building a kernel with clang sometimes fails with an objtool error in dlm: fs/dlm/lock.o: warning: objtool: revert_lock_pc()+0xbd: can't find jump dest instruction at .text+0xd7fc The problem is that BUG() never returns and the compiler knows that anything after it is unreachable, however the panic still emits some code that does not get fully eliminated. Having both BUG() and panic() is really pointless as the BUG() kills the current process and the subsequent panic() never hits. In most cases, we probably don't really want either and should replace the DLM_ASSERT() statements with WARN_ON(), as has been done for some of them. Remove the BUG() here so the user at least sees the panic message and we can reliably build randconfig kernels. Fixes:e7fd41792f("[DLM] The core of the DLM for GFS2/CLVM") Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: clang-built-linux@googlegroups.com Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.