linux-kernel - [PATCH 1/2] RDMA/rxe: Save a few bytes from struct rxe

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Message-Id: <2c42065049bb2b99bededdc423a9babf4a98adee.1635093628.git.christophe.jaillet@wanadoo.fr>
Date:   Sun, 24 Oct 2021 18:43:30 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     zyjzyj2000@...il.com, dledford@...hat.com, jgg@...pe.ca
Cc:     linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
        kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH 1/2] RDMA/rxe: Save a few bytes from struct rxe_pool

'table_size' is never read, it can be removed.

In fact, the only place that uses something that could be 'table_size' is
'alloc_index()'. In this function, it is re-computed from 'min_index' and
'max_index'.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
 drivers/infiniband/sw/rxe/rxe_pool.c | 1 -
 drivers/infiniband/sw/rxe/rxe_pool.h | 1 -
 2 files changed, 2 deletions(-)

diff --git a/drivers/infiniband/sw/rxe/rxe_pool.c b/drivers/infiniband/sw/rxe/rxe_pool.c
index 7b4cb46edfd9..271d4ac0e0aa 100644
--- a/drivers/infiniband/sw/rxe/rxe_pool.c
+++ b/drivers/infiniband/sw/rxe/rxe_pool.c
@@ -114,7 +114,6 @@ static int rxe_pool_init_index(struct rxe_pool *pool, u32 max, u32 min)
 		goto out;
 	}
 
-	pool->index.table_size = size;
 	bitmap_zero(pool->index.table, max - min + 1);
 
 out:
diff --git a/drivers/infiniband/sw/rxe/rxe_pool.h b/drivers/infiniband/sw/rxe/rxe_pool.h
index 1feca1bffced..1ff2250edf6d 100644
--- a/drivers/infiniband/sw/rxe/rxe_pool.h
+++ b/drivers/infiniband/sw/rxe/rxe_pool.h
@@ -74,7 +74,6 @@ struct rxe_pool {
 	struct {
 		struct rb_root		tree;
 		unsigned long		*table;
-		size_t			table_size;
 		u32			last;
 		u32			max_index;
 		u32			min_index;
-- 
2.30.2