On Tue, 19 Apr 2016, Ezequiel Garcia <ezequiel@xxxxxxxxxxxxxxxxxxxx> wrote:
> Let's be user-friendly and print an actually helpful parameter
> description.
>
> Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/drm_drv.c | 13 +++++++++++--
> 1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
> index 167c8d3d4a31..49b658069b51 100644
> --- a/drivers/gpu/drm/drm_drv.c
> +++ b/drivers/gpu/drm/drm_drv.c
> @@ -37,15 +37,24 @@
> #include "drm_legacy.h"
> #include "drm_internal.h"
>
> -unsigned int drm_debug = 0; /* bitmask of DRM_UT_x */
> +/*
> + * drm_debug: Enable debug output.
> + * Bitmask of DRM_UT_x. See include/drm/drmP.h for details.
> + */
> +unsigned int drm_debug = 0;
> EXPORT_SYMBOL(drm_debug);
>
> MODULE_AUTHOR(CORE_AUTHOR);
> MODULE_DESCRIPTION(CORE_DESC);
> MODULE_LICENSE("GPL and additional rights");
> -MODULE_PARM_DESC(debug, "Enable debug output");
> +MODULE_PARM_DESC(debug, "Enables debug output, where each bit enables a debug category.\n"
Please keep it as "Enable".
> +"Bit 0 (0x1) will enable CORE messages (drm core code)\n"
> +"Bit 1 (0x2) will enable DRIVER messages (drm controller code)\n"
> +"Bit 2 (0x4) will enable KMS messages (modesetting code)\n"
> +"Bit 3 (0x8) will enable PRMIE messages (prime code)\n");
Maybe prefix the continuation lines with a space or a tab? The last line
probably shouldn't contain \n. See what modinfo(8) displays and make it
pretty.
> module_param_named(debug, drm_debug, int, 0600);
>
> +
Spurious whitepace.
> static DEFINE_SPINLOCK(drm_minor_lock);
> static struct idr drm_minors_idr;
--
Jani Nikula, Intel Open Source Technology Center
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