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Older compilers (gcc-4.9) are not as able to track uninitialised variables as well as more recent compilers. In particular, drivers/gpu/drm/i915/intel_dpio_phy.c: In function ‘bxt_ddi_phy_init’: drivers/gpu/drm/i915/intel_dpio_phy.c:482:25: warning: ‘was_enabled’ may be used uninitialized in this function [-Wmaybe-uninitialized] In this case, we can rearrange code slightly to make the control flow clearer to the reader, as well as the compiler. That is we only call uninit using the same predicate as calling init Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Cc: Imre Deak <imre.deak@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171107135324.28300-1-chris@chris-wilson.co.uk Reviewed-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk> |
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| README | ||
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.