A simple convienence function that returns a drm_printer which prints
using pr_err()
Cc: Juston Li <[email protected]>
Cc: Imre Deak <[email protected]>
Cc: Ville Syrjälä <[email protected]>
Cc: Harry Wentland <[email protected]>
Signed-off-by: Lyude Paul <[email protected]>
---
drivers/gpu/drm/drm_print.c | 6 ++++++
include/drm/drm_print.h | 17 +++++++++++++++++
2 files changed, 23 insertions(+)
diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c
index a17c8a14dba4..6112be358769 100644
--- a/drivers/gpu/drm/drm_print.c
+++ b/drivers/gpu/drm/drm_print.c
@@ -147,6 +147,12 @@ void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf)
}
EXPORT_SYMBOL(__drm_printfn_debug);
+void __drm_printfn_err(struct drm_printer *p, struct va_format *vaf)
+{
+ pr_err("%s %pV", p->prefix, vaf);
+}
+EXPORT_SYMBOL(__drm_printfn_err);
+
/**
* drm_puts - print a const string to a &drm_printer stream
* @p: the &drm printer
diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h
index a5d6f2f3e430..112165d3195d 100644
--- a/include/drm/drm_print.h
+++ b/include/drm/drm_print.h
@@ -83,6 +83,7 @@ void __drm_printfn_seq_file(struct drm_printer *p, struct va_format *vaf);
void __drm_puts_seq_file(struct drm_printer *p, const char *str);
void __drm_printfn_info(struct drm_printer *p, struct va_format *vaf);
void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf);
+void __drm_printfn_err(struct drm_printer *p, struct va_format *vaf);
__printf(2, 3)
void drm_printf(struct drm_printer *p, const char *f, ...);
@@ -227,6 +228,22 @@ static inline struct drm_printer drm_debug_printer(const char *prefix)
return p;
}
+/**
+ * drm_err_printer - construct a &drm_printer that outputs to pr_err()
+ * @prefix: debug output prefix
+ *
+ * RETURNS:
+ * The &drm_printer object
+ */
+static inline struct drm_printer drm_err_printer(const char *prefix)
+{
+ struct drm_printer p = {
+ .printfn = __drm_printfn_err,
+ .prefix = prefix
+ };
+ return p;
+}
+
/*
* The following categories are defined:
*
--
2.21.0
On Wed, Jul 17, 2019 at 09:42:27PM -0400, Lyude Paul wrote:
> A simple convienence function that returns a drm_printer which prints
> using pr_err()
>
> Cc: Juston Li <[email protected]>
> Cc: Imre Deak <[email protected]>
> Cc: Ville Syrj?l? <[email protected]>
> Cc: Harry Wentland <[email protected]>
> Signed-off-by: Lyude Paul <[email protected]>
> ---
> drivers/gpu/drm/drm_print.c | 6 ++++++
> include/drm/drm_print.h | 17 +++++++++++++++++
> 2 files changed, 23 insertions(+)
>
> diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c
> index a17c8a14dba4..6112be358769 100644
> --- a/drivers/gpu/drm/drm_print.c
> +++ b/drivers/gpu/drm/drm_print.c
> @@ -147,6 +147,12 @@ void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf)
> }
> EXPORT_SYMBOL(__drm_printfn_debug);
>
> +void __drm_printfn_err(struct drm_printer *p, struct va_format *vaf)
> +{
> + pr_err("%s %pV", p->prefix, vaf);
DRM printing is a huge bikeshad (or tire fire?). We can't call DRM_ERROR,
but for consistency mabye emulate the layout?
Either way: Reviewed-by: Daniel Vetter <[email protected]>
> +}
> +EXPORT_SYMBOL(__drm_printfn_err);
> +
> /**
> * drm_puts - print a const string to a &drm_printer stream
> * @p: the &drm printer
> diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h
> index a5d6f2f3e430..112165d3195d 100644
> --- a/include/drm/drm_print.h
> +++ b/include/drm/drm_print.h
> @@ -83,6 +83,7 @@ void __drm_printfn_seq_file(struct drm_printer *p, struct va_format *vaf);
> void __drm_puts_seq_file(struct drm_printer *p, const char *str);
> void __drm_printfn_info(struct drm_printer *p, struct va_format *vaf);
> void __drm_printfn_debug(struct drm_printer *p, struct va_format *vaf);
> +void __drm_printfn_err(struct drm_printer *p, struct va_format *vaf);
>
> __printf(2, 3)
> void drm_printf(struct drm_printer *p, const char *f, ...);
> @@ -227,6 +228,22 @@ static inline struct drm_printer drm_debug_printer(const char *prefix)
> return p;
> }
>
> +/**
> + * drm_err_printer - construct a &drm_printer that outputs to pr_err()
> + * @prefix: debug output prefix
> + *
> + * RETURNS:
> + * The &drm_printer object
> + */
> +static inline struct drm_printer drm_err_printer(const char *prefix)
> +{
> + struct drm_printer p = {
> + .printfn = __drm_printfn_err,
> + .prefix = prefix
> + };
> + return p;
> +}
> +
> /*
> * The following categories are defined:
> *
> --
> 2.21.0
>
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch