[Bug 201023] New: amdgpu fails compilation

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=201023

            Bug ID: 201023
           Summary: amdgpu fails compilation
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.18
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: johnypean at gmail.com
        Regression: No

Created attachment 278317
  --> https://bugzilla.kernel.org/attachment.cgi?id=278317&action=edit
CONFIG_FORTIFY_SOURCE causes amdgpu to fail compilation

amdgpu driver (DC part) fails compilation when compiling with
CONFIG_FORTIFY_SOURCE option:

In function ‘memmove’,
    inlined from ‘append_entry’ at
drivers/gpu/drm/amd/amdgpu/../display/dc/basics/logger.c:258:2,
    inlined from ‘dm_logger_append_va.part.5’ at
drivers/gpu/drm/amd/amdgpu/../display/dc/basics/logger.c:349:4:
./include/linux/string.h:356:4: error: call to ‘__read_overflow2’ declared with
attribute error: detected read beyond size of object passed as 2nd parameter
    __read_overflow2();
    ^~~~~~~~~~~~~~~~~~

I have attached a patch which resolves this problem.

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