On Mon, 2018-06-25 at 12:22 +0100, Suzuki K Poulose wrote:
> Add the initial support for Coresight Address Translation Unit, which
> augments the TMC in Coresight SoC-600 by providing an improved Scatter
> Gather mechanism. CATU is always connected to a single TMC-ETR and
> converts the AXI address with a translated address (from a given SG
> table with specific format). The CATU should be programmed in pass
> through mode and enabled even if the ETR doesn't use the translation
> by CATU.
[]
> diff --git a/drivers/hwtracing/coresight/coresight-catu.h b/drivers/hwtracing/coresight/coresight-catu.h
[]
> +static inline bool coresight_is_catu_device(struct coresight_device *csdev)
> +{
> + enum coresight_dev_subtype_helper subtype;
> +
> + /* Make the checkpatch happy */
> + subtype = csdev->subtype.helper_subtype;
> +
> + return IS_ENABLED(CONFIG_CORESIGHT_CATU) &&
> + csdev->type == CORESIGHT_DEV_TYPE_HELPER &&
> + subtype == CORESIGHT_DEV_SUBTYPE_HELPER_CATU;
> +}
I believe you should not make checkpatch happy here
by using a temporary but use the most readable form.
Probably the most readable form is:
return IS_ENABLED(CONFIG_CORESIGHT_CATU) &&
csdev->type == CORESIGHT_DEV_TYPE_HELPER &&
csdev->subtype.helper_subtype == CORESIGHT_DEV_SUBTYPE_HELPER_CATU;
where restricting line length to 80 columns is not useful
because the identifiers are very long. The identifiers
are possibly longer than necessary.
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