netdev - [net-next v2 03/10] page_pool: Add a macro for incrementing stats

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Date:   Sat, 29 Jan 2022 15:38:53 -0800
From:   Joe Damato <jdamato@...tly.com>
To:     netdev@...r.kernel.org, kuba@...nel.org,
        ilias.apalodimas@...aro.org, davem@...emloft.net, hawk@...nel.org
Cc:     Joe Damato <jdamato@...tly.com>
Subject: [net-next v2 03/10] page_pool: Add a macro for incrementing stats

Add simple wrapper macro for incrementing page pool stats. This wrapper is
intended to be used in softirq context.

Signed-off-by: Joe Damato <jdamato@...tly.com>
---
 net/core/page_pool.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/net/core/page_pool.c b/net/core/page_pool.c
index 7e33590..b1a2599 100644
--- a/net/core/page_pool.c
+++ b/net/core/page_pool.c
@@ -29,6 +29,15 @@
 #ifdef CONFIG_PAGE_POOL_STATS
 DEFINE_PER_CPU_ALIGNED(struct page_pool_stats, page_pool_stats);
 EXPORT_PER_CPU_SYMBOL(page_pool_stats);
+
+#define page_pool_stat_alloc_inc(__stat)					\
+	do {									\
+		struct page_pool_stats *pps = this_cpu_ptr(&page_pool_stats);	\
+		pps->alloc.__stat++;						\
+	} while (0)
+
+#else
+#define page_pool_stat_alloc_inc(stat)
 #endif
 
 static int page_pool_init(struct page_pool *pool,
-- 
2.7.4