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drm/i915/params: use generics for parameter debugfs file creation 

Replace the __builtin_strcmp() if ladder with generics.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230118151800.3669913-4-jani.nikula@intel.com
This commit is contained in:
Jani Nikula 2023-01-18 17:18:00 +02:00
parent 7448d336bc
commit 01ce744637
1 changed files with 11 additions and 22 deletions
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33
drivers/gpu/drm/i915/i915_debugfs_params.c
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@ -230,27 +230,16 @@ i915_debugfs_create_charp(const char *name, umode_t mode,
&i915_param_charp_fops);
}
static __always_inline void
_i915_param_create_file(struct dentry *parent, const char *name,
const char *type, int mode, void *value)
{
if (!mode)
return;
if (!__builtin_strcmp(type, "bool"))
debugfs_create_bool(name, mode, parent, value);
else if (!__builtin_strcmp(type, "int"))
i915_debugfs_create_int(name, mode, parent, value);
else if (!__builtin_strcmp(type, "unsigned int"))
i915_debugfs_create_uint(name, mode, parent, value);
else if (!__builtin_strcmp(type, "unsigned long"))
debugfs_create_ulong(name, mode, parent, value);
else if (!__builtin_strcmp(type, "char *"))
i915_debugfs_create_charp(name, mode, parent, value);
else
WARN(1, "no debugfs fops defined for param type %s (i915.%s)\n",
type, name);
}
#define _i915_param_create_file(parent, name, mode, valp) \
do { \
if (mode) \
_Generic(valp, \
bool *: debugfs_create_bool, \
int *: i915_debugfs_create_int, \
unsigned int *: i915_debugfs_create_uint, \
unsigned long *: debugfs_create_ulong, \
char **: i915_debugfs_create_charp)(name, mode, parent, valp); \
} while(0)
/* add a subdirectory with files for each i915 param */
struct dentry *i915_debugfs_params(struct drm_i915_private *i915)
@ -269,7 +258,7 @@ struct dentry *i915_debugfs_params(struct drm_i915_private *i915)
* just let the generic create file fail silently with -EEXIST.
*/
#define REGISTER(T, x, unused, mode, ...) _i915_param_create_file(dir, #x, #T, mode, &params->x);
#define REGISTER(T, x, unused, mode, ...) _i915_param_create_file(dir, #x, mode, &params->x);
I915_PARAMS_FOR_EACH(REGISTER);
#undef REGISTER