drm/printer: Add drm_vprintf() (e2b155e9) · Commits · 戴 / test

Simple va_args equivalent to the existing drm_printf() for use with the drm_printer. v2: Fixup kerneldoc to match final parameter names. v3: Turn it into a kerneldoc comment Signed-off-by:

Chris Wilson <chris@chris-wilson.co.uk> Cc: Rob Clark <robdclark@gmail.com> Reviewed-by:

Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Acked-by:

Dave Airlie <airlied@redhat.com> Signed-off-by:

Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171123084051.30203-1-chris@chris-wilson.co.uk

drivers/gpu/drm/drm_print.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -55,13 +55,10 @@ EXPORT_SYMBOL(__drm_printfn_debug);
		*/
		void drm_printf(struct drm_printer p, const char f, ...)
		{
		struct va_format vaf;
		va_list args;

		va_start(args, f);
		vaf.fmt = f;
		vaf.va = &args;
		p->printfn(p, &vaf);
		drm_vprintf(p, f, &args);
		va_end(args);
		}
		EXPORT_SYMBOL(drm_printf);

include/drm/drm_print.h

+15 −0

Original line number	Diff line number	Diff line
		@@ -80,6 +80,21 @@ void __drm_printfn_debug(struct drm_printer p, struct va_format vaf);
		__printf(2, 3)
		void drm_printf(struct drm_printer p, const char f, ...);

		/**
		* drm_vprintf - print to a &drm_printer stream
		* @p: the &drm_printer
		* @fmt: format string
		* @va: the va_list
		*/
		__printf(2, 0)
		static inline void
		drm_vprintf(struct drm_printer p, const char fmt, va_list *va)
		{
		struct va_format vaf = { .fmt = fmt, .va = va };

		p->printfn(p, &vaf);
		}

		/**
		* drm_printf_indent - Print to a &drm_printer stream with indentation
		* @printer: DRM printer

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