drm/i915/uc: Fix undefined behavior due to shift overflowing the constant

Fix:

  In file included from <command-line>:0:0:
  drivers/gpu/drm/i915/gt/uc/intel_guc.c: In function ‘intel_guc_send_mmio’:
  ././include/linux/compiler_types.h:352:38: error: call to ‘__compiletime_assert_1047’ \
  declared with attribute error: FIELD_PREP: mask is not constant
    _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)

and other build errors due to shift overflowing values.

See https://lore.kernel.org/r/YkwQ6%[email protected] for the gory
details as to why it triggers with older gccs only.

v2 by Jani:
- Drop the i915_reg.h changes

Cc: Joonas Lahtinen <[email protected]>
Cc: Tvrtko Ursulin <[email protected]>
Cc: Ruiqi GONG <[email protected]>
Cc: Randy Dunlap <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Reviewed-by: Michal Wajdeczko <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

0 files changed, 0 insertions, 0 deletions