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firmware: arm_scmi: Constify struct scmi_voltage_proto_ops

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Constify struct scmi_voltage_proto_ops since the driver never modifies
it. Placing it in read-only memory (.rodata) improves hardening,
particularly because it contains function pointers.

x86_64 (allmodconfig) size impact:

Before:
   text    data     bss     dec     hex filename
  13142    1808       0   14950    3a66 drivers/firmware/arm_scmi/voltage.o

After:
   text    data     bss     dec     hex filename
  13238    1712       0   14950    3a66 drivers/firmware/arm_scmi/voltage.o

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Message-Id: <2091660c072dd2d5599897243a5d69e89d46ed4d.1753816459.git.christophe.jaillet@wanadoo.fr>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
Christophe JAILLET
2025-07-29 21:15:03 +02:00
committed by Sudeep Holla
parent a4d5f63d43
commit abd658d3e7
1 changed files with 1 additions and 1 deletions
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2
drivers/firmware/arm_scmi/voltage.c
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@@ -393,7 +393,7 @@ static int scmi_voltage_domains_num_get(const struct scmi_protocol_handle *ph)
return vinfo->num_domains;
}
static struct scmi_voltage_proto_ops voltage_proto_ops = {
static const struct scmi_voltage_proto_ops voltage_proto_ops = {
.num_domains_get = scmi_voltage_domains_num_get,
.info_get = scmi_voltage_info_get,
.config_set = scmi_voltage_config_set,