Quoting Nathan Chancellor (2020-04-29 04:00:52)
When building with clang + -Wuninitialized:
drivers/gpu/drm/i915/gt/debugfs_gt_pm.c:407:7: warning: variable 'rpcurupei' is uninitialized when used here [-Wuninitialized] rpcurupei, ^~~~~~~~~ drivers/gpu/drm/i915/gt/debugfs_gt_pm.c:304:16: note: initialize the variable 'rpcurupei' to silence this warning u32 rpcurupei, rpcurup, rpprevup; ^ = 0 1 warning generated.
rpupei is assigned twice; based on the second argument to intel_uncore_read, it seems this one should have been assigned to rpcurupei.
Fixes: 9c878557b1eb ("drm/i915/gt: Use the RPM config register to determine clk frequencies") Link: https://github.com/ClangBuiltLinux/linux/issues/1016 Signed-off-by: Nathan Chancellor natechancellor@gmail.com
Thanks. Reviewed-by: Chris Wilson chris@chris-wilson.co.uk -Chris