[Intel-xe] [PATCH] drm/xe: make compound literal initialization const

Jani Nikula jani.nikula at intel.com
Thu Mar 9 12:17:46 UTC 2023


Be careful about having const in the compound literal initialization to
keep the initializers in rodata. Here, the impact is 1.8k of mutable
data moved to rodata.

add/remove: 0/1 grow/shrink: 0/0 up/down: 0/-1804 (-1804)
Data                                         old     new   delta
__compound_literal                          1804       -   -1804
Total: Before=42425, After=40621, chg -4.25%
add/remove: 0/0 grow/shrink: 1/0 up/down: 1804/0 (1804)
RO Data                                      old     new   delta
__compound_literal                          7696    9500   +1804
Total: Before=138535, After=140339, chg +1.30%

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/xe/xe_rtp.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_rtp.h b/drivers/gpu/drm/xe/xe_rtp.h
index bd44fd8bbe05..8fc393ef7358 100644
--- a/drivers/gpu/drm/xe/xe_rtp.h
+++ b/drivers/gpu/drm/xe/xe_rtp.h
@@ -363,7 +363,7 @@ struct xe_reg_sr;
  */
 #define XE_RTP_RULES(r1, ...)							\
 	.n_rules = COUNT_ARGS(r1, ##__VA_ARGS__),				\
-	.rules = (struct xe_rtp_rule[]) {					\
+	.rules = (const struct xe_rtp_rule[]) {					\
 		CALL_FOR_EACH(__ADD_XE_RTP_RULE_PREFIX, r1, ##__VA_ARGS__)	\
 	}
 
@@ -390,7 +390,7 @@ struct xe_reg_sr;
  */
 #define XE_RTP_ACTIONS(a1, ...)							\
 	.n_actions = COUNT_ARGS(a1, ##__VA_ARGS__),				\
-	.actions = (struct xe_rtp_action[]) {					\
+	.actions = (const struct xe_rtp_action[]) {				\
 		CALL_FOR_EACH(__ADD_XE_RTP_ACTION_PREFIX, a1, ##__VA_ARGS__)	\
 	}
 
-- 
2.39.1



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