From 4081cef923e0ac0bb4dbc24da838c91f2ea8d737 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Thu, 27 Dec 2018 16:33:37 +0200 Subject: drm/i915: add a helper to make a copy of i915_params Abstract the one user in anticipation of more. Reviewed-by: Chris Wilson Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/c6a94b4da8dc723df025b1f602fe46d76d00d53f.1545920737.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/i915_params.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers/gpu/drm/i915/i915_params.c') diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index 2e0356561839..ae3ece4ec7ab 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -203,3 +203,17 @@ void i915_params_dump(const struct i915_params *params, struct drm_printer *p) I915_PARAMS_FOR_EACH(PRINT); #undef PRINT } + +static __always_inline void dup_param(const char *type, void *x) +{ + if (!__builtin_strcmp(type, "char *")) + *(void **)x = kstrdup(*(void **)x, GFP_ATOMIC); +} + +void i915_params_copy(struct i915_params *dest, const struct i915_params *src) +{ + *dest = *src; +#define DUP(T, x, ...) dup_param(#T, &dest->x); + I915_PARAMS_FOR_EACH(DUP); +#undef DUP +} -- cgit v1.2.3