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SubjectRe: [PATCH] drm: Reduce object size of DRM_ERROR and DRM_DEBUG uses
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Op 13-03-18 om 23:02 schreef Joe Perches:
> drm_printk is used for both DRM_ERROR and DRM_DEBUG with unnecessary
> arguments that can be removed by creating separate functins.
>
> Create specific functions for these calls to reduce x86/64 defconfig
> size by ~20k.
>
> Modify the existing macros to use the specific calls.
>
> new:
> $ size -t drivers/gpu/drm/built-in.a | tail -1
> 1876562 44542 995 1922099 1d5433 (TOTALS)
>
> old:
> $ size -t drivers/gpu/drm/built-in.a | tail -1
> 1897565 44542 995 1943102 1da63e (TOTALS)
>
> Miscellanea:
>
> o intel_display requires a change to use the specific calls.
>
> Signed-off-by: Joe Perches <joe@perches.com>
> ---
I guess this adds up. Nice reduction. :)


> drivers/gpu/drm/drm_print.c | 28 +++++++++++++++++++++-------
> drivers/gpu/drm/i915/intel_display.c | 15 ++++-----------
> include/drm/drm_print.h | 27 ++++++++++++++-------------
> 3 files changed, 39 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c
> index 781518fd88e3..79abf6d5b4db 100644
> --- a/drivers/gpu/drm/drm_print.c
> +++ b/drivers/gpu/drm/drm_print.c
> @@ -89,23 +89,37 @@ void drm_dev_printk(const struct device *dev, const char *level,
> }
> EXPORT_SYMBOL(drm_dev_printk);
>
> -void drm_printk(const char *level, unsigned int category,
> - const char *format, ...)
> +void drm_dbg(unsigned int category, const char *format, ...)
> {
> struct va_format vaf;
> va_list args;
>
> - if (category != DRM_UT_NONE && !(drm_debug & category))
> + if (!(drm_debug & category))
> return;
>
> va_start(args, format);
> vaf.fmt = format;
> vaf.va = &args;
>
> - printk("%s" "[" DRM_NAME ":%ps]%s %pV",
> - level, __builtin_return_address(0),
> - strcmp(level, KERN_ERR) == 0 ? " *ERROR*" : "", &vaf);
> + printk(KERN_DEBUG "[" DRM_NAME ":%ps] %pV",
> + __builtin_return_address(0), &vaf);
> +
> + va_end(args);
> +}
> +EXPORT_SYMBOL(drm_dbg);
> +
> +void drm_err(const char *format, ...)
> +{
> + struct va_format vaf;
> + va_list args;
> +
> + va_start(args, format);
> + vaf.fmt = format;
> + vaf.va = &args;
> +
> + printk(KERN_ERR "[" DRM_NAME ":%ps] *ERROR* %pV",
> + __builtin_return_address(0), &vaf);
>
> va_end(args);
> }
> -EXPORT_SYMBOL(drm_printk);
> +EXPORT_SYMBOL(drm_err);
> diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
> index 2933ad38094f..d8e522e3cd39 100644
> --- a/drivers/gpu/drm/i915/intel_display.c
> +++ b/drivers/gpu/drm/i915/intel_display.c
> @@ -11059,24 +11059,17 @@ intel_compare_link_m_n(const struct intel_link_m_n *m_n,
> static void __printf(3, 4)
> pipe_config_err(bool adjust, const char *name, const char *format, ...)
> {
> - char *level;
> - unsigned int category;
> struct va_format vaf;
> va_list args;
>
> - if (adjust) {
> - level = KERN_DEBUG;
> - category = DRM_UT_KMS;
> - } else {
> - level = KERN_ERR;
> - category = DRM_UT_NONE;
> - }
> -
> va_start(args, format);
> vaf.fmt = format;
> vaf.va = &args;
>
> - drm_printk(level, category, "mismatch in %s %pV", name, &vaf);
> + if (adjust)
> + drm_dbg(DRM_UT_KMS, "mismatch in %s %pV", name, &vaf);
> + else
> + drm_err("mismatch in %s %pV", name, &vaf);
Could this use DRM_DEBUG_KMS/DRM_ERROR?

Rest looks good, so I can fix up if you want.

~Maarten

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