netdev - [PATCH net-next 10/15] mlxsw: spectrum_acl: Remove RTNL lock assertions from ERP code

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20190224064525.14913-11-idosch@mellanox.com>
Date:   Sun, 24 Feb 2019 06:46:30 +0000
From:   Ido Schimmel <idosch@...lanox.com>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        Jiri Pirko <jiri@...lanox.com>, mlxsw <mlxsw@...lanox.com>,
        Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 10/15] mlxsw: spectrum_acl: Remove RTNL lock
 assertions from ERP code

From: Jiri Pirko <jiri@...lanox.com>

No longer require RTNL lock in this code. Newly introduced mutexes take
care of guarding objagg and bloom filter. There is no need to guard
gen_pool_alloc()/gen_pool_free() as they are fine to be called lockless.

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c
index d6961dd0c556..c1a9cc9a3292 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_erp.c
@@ -1007,11 +1007,6 @@ mlxsw_sp_acl_erp_mask_get(struct mlxsw_sp_acl_atcam_region *aregion,
 	struct mlxsw_sp_acl_erp_key key;
 	struct objagg_obj *objagg_obj;
 
-	/* eRPs are allocated from a shared resource, but currently all
-	 * allocations are done under RTNL.
-	 */
-	ASSERT_RTNL();
-
 	memcpy(key.mask, mask, MLXSW_REG_PTCEX_FLEX_KEY_BLOCKS_LEN);
 	key.ctcam = ctcam;
 	mutex_lock(&erp_table->objagg_lock);
@@ -1042,7 +1037,6 @@ int mlxsw_sp_acl_erp_bf_insert(struct mlxsw_sp *mlxsw_sp,
 	const struct mlxsw_sp_acl_erp *erp = objagg_obj_root_priv(objagg_obj);
 	unsigned int erp_bank;
 
-	ASSERT_RTNL();
 	if (!mlxsw_sp_acl_erp_table_is_used(erp->erp_table))
 		return 0;
 
-- 
2.20.1