Re: [PATCH v8 04/10] OPP: Add support for parsing interconnect bandwidth

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On 2020-05-29 10:14, Viresh Kumar wrote:
On 12-05-20, 15:53, Georgi Djakov wrote:
 struct dev_pm_opp *_opp_allocate(struct opp_table *table)
 {
 	struct dev_pm_opp *opp;
-	int count, supply_size;
+	int supply_count, supply_size, icc_size;

 	/* Allocate space for at least one supply */
-	count = table->regulator_count > 0 ? table->regulator_count : 1;
-	supply_size = sizeof(*opp->supplies) * count;
+ supply_count = table->regulator_count > 0 ? table->regulator_count : 1;
+	supply_size = sizeof(*opp->supplies) * supply_count;
+	icc_size = sizeof(*opp->bandwidth) * table->path_count;

 	/* allocate new OPP node and supplies structures */
-	opp = kzalloc(sizeof(*opp) + supply_size, GFP_KERNEL);
+	opp = kzalloc(sizeof(*opp) + supply_size + icc_size, GFP_KERNEL);
+
 	if (!opp)
 		return NULL;

/* Put the supplies at the end of the OPP structure as an empty array */
 	opp->supplies = (struct dev_pm_opp_supply *)(opp + 1);
+ opp->bandwidth = (struct dev_pm_opp_icc_bw *)(opp->supplies + supply_count);
 	INIT_LIST_HEAD(&opp->node);

Added this delta here.

diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 7302f2631f8d..dfbd3d10410c 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -1330,7 +1330,8 @@ struct dev_pm_opp *_opp_allocate(struct opp_table *table)

/* Put the supplies at the end of the OPP structure as an empty array */
        opp->supplies = (struct dev_pm_opp_supply *)(opp + 1);
-       opp->bandwidth = (struct dev_pm_opp_icc_bw *)(opp->supplies +
supply_count);
+       if (icc_size)
+               opp->bandwidth = (struct dev_pm_opp_icc_bw
*)(opp->supplies + supply_count);

nice catch!
Reviewed-by: Sibi Sankar <sibis@xxxxxxxxxxxxxx>

        INIT_LIST_HEAD(&opp->node);

        return opp;

--
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a Linux Foundation Collaborative Project.



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