On 2021.09.15 10:39:51 -0600, Jim Cromie wrote:
> Taking embedded spaces out of existing prefixes makes them better
> class-prefixes; simplifying the extra quoting needed otherwise:
>
> $> echo format "^gvt: core:" +p >control
>
> Dropping the internal spaces means any trailing space in a query will
> more clearly terminate the prefix being searched for.
>
> Consider a generic drm-debug example:
>
> # turn off ATOMIC reports
> echo format "^drm:atomic: " -p > control
>
> # turn off all ATOMIC:* reports, including any sub-categories
> echo format "^drm:atomic:" -p > control
>
> # turn on ATOMIC:FAIL: reports
> echo format "^drm:atomic:fail: " +p > control
>
> Removing embedded spaces in the class-prefixes simplifies the
> corresponding match-prefix. This means that "quoted" match-prefixes
> are only needed when the trailing space is desired, in order to
> exclude explicitly sub-categorized pr-debugs; in this example,
> "drm:atomic:fail:".
>
> RFC: maybe the prefix catenation should paste in the " " class-prefix
> terminator explicitly. A pr_debug_() flavor could exclude the " ",
> allowing ad-hoc sub-categorization by appending for example, "fail:"
> to "drm:atomic:" without the default " " insertion.
>
> Signed-off-by: Jim Cromie <jim.cro...@gmail.com>
> ---
> v8:
> . fix patchwork CI warning
> ---
> drivers/gpu/drm/i915/gvt/debug.h | 18 +++++++++---------
> 1 file changed, 9 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gvt/debug.h
> b/drivers/gpu/drm/i915/gvt/debug.h
> index c6027125c1ec..bbecc279e077 100644
> --- a/drivers/gpu/drm/i915/gvt/debug.h
> +++ b/drivers/gpu/drm/i915/gvt/debug.h
> @@ -36,30 +36,30 @@ do {
> \
> } while (0)
>
> #define gvt_dbg_core(fmt, args...) \
> - pr_debug("gvt: core: "fmt, ##args)
> + pr_debug("gvt:core: " fmt, ##args)
>
> #define gvt_dbg_irq(fmt, args...) \
> - pr_debug("gvt: irq: "fmt, ##args)
> + pr_debug("gvt:irq: " fmt, ##args)
>
> #define gvt_dbg_mm(fmt, args...) \
> - pr_debug("gvt: mm: "fmt, ##args)
> + pr_debug("gvt:mm: " fmt, ##args)
>
> #define gvt_dbg_mmio(fmt, args...) \
> - pr_debug("gvt: mmio: "fmt, ##args)
> + pr_debug("gvt:mmio: " fmt, ##args)
>
> #define gvt_dbg_dpy(fmt, args...) \
> - pr_debug("gvt: dpy: "fmt, ##args)
> + pr_debug("gvt:dpy: " fmt, ##args)
>
> #define gvt_dbg_el(fmt, args...) \
> - pr_debug("gvt: el: "fmt, ##args)
> + pr_debug("gvt:el: " fmt, ##args)
>
> #define gvt_dbg_sched(fmt, args...) \
> - pr_debug("gvt: sched: "fmt, ##args)
> + pr_debug("gvt:sched: " fmt, ##args)
>
> #define gvt_dbg_render(fmt, args...) \
> - pr_debug("gvt: render: "fmt, ##args)
> + pr_debug("gvt:render: " fmt, ##args)
>
> #define gvt_dbg_cmd(fmt, args...) \
> - pr_debug("gvt: cmd: "fmt, ##args)
> + pr_debug("gvt:cmd: " fmt, ##args)
>
> #endif
> -- Looks good to me. Thanks! Reviewed-by: Zhenyu Wang <zhen...@linux.intel.com>
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