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The global device lock is acquired to search the resource table. The lock is actually itself part of the table (entry 0). Therefore if someone asks for resource 0 we would deadlock since double locking is no longer allowed. Currently the driver doesn't try to lock that resource so let's simply make sure we fail graciously and not add special handling of this case until really need. Hide the relevant defines in the source file. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.