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drm/i915: Extend I915_PARAMS_FOR_EACH with default member value

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By combining default value into helper macro we can initialize
modparams struct in the same automatic way as it was declared.
This will initialize members in the same order as declared
and additionally will disallow declaring new member without
proper default value for it.

v2: make MEMBER macro more robust (Joonas)

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170925105008.46060-2-michal.wajdeczko@intel.com
This commit is contained in:
Michal Wajdeczko
2017-09-25 10:50:07 +00:00
committed by Joonas Lahtinen
parent 54fea2b974
commit 7075cb855d
4 changed files with 48 additions and 84 deletions
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2
drivers/gpu/drm/i915/i915_debugfs.c
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@@ -66,7 +66,7 @@ static int i915_capabilities(struct seq_file *m, void *data)
#undef PRINT_FLAG
kernel_param_lock(THIS_MODULE);
#define PRINT_PARAM(T, x) seq_print_param(m, #x, #T, &i915_modparams.x);
#define PRINT_PARAM(T, x, ...) seq_print_param(m, #x, #T, &i915_modparams.x);
I915_PARAMS_FOR_EACH(PRINT_PARAM);
#undef PRINT_PARAM
kernel_param_unlock(THIS_MODULE);