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commit5d394eee2cupstream. While experimenting with region driver loading the following backtrace was triggered: INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. [..] Call Trace: dump_stack+0x85/0xcb register_lock_class+0x571/0x580 ? __lock_acquire+0x2ba/0x1310 ? kernfs_seq_start+0x2a/0x80 __lock_acquire+0xd4/0x1310 ? dev_attr_show+0x1c/0x50 ? __lock_acquire+0x2ba/0x1310 ? kernfs_seq_start+0x2a/0x80 ? lock_acquire+0x9e/0x1a0 lock_acquire+0x9e/0x1a0 ? dev_attr_show+0x1c/0x50 badblocks_show+0x70/0x190 ? dev_attr_show+0x1c/0x50 dev_attr_show+0x1c/0x50 This results from a missing successful call to devm_init_badblocks() from nd_region_probe(). Block attempts to show badblocks while the region is not enabled. Fixes:6a6bef9042("libnvdimm: add mechanism to publish badblocks...") Cc: <stable@vger.kernel.org> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.