linux-kernel - [PATCH net v4 0/4] Fix race conditions in ndo_get

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Message-ID: <20250102112246.2494230-1-srasheed@marvell.com>
Date: Thu, 2 Jan 2025 03:22:42 -0800
From: Shinas Rasheed <srasheed@...vell.com>
To: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <hgani@...vell.com>, <sedara@...vell.com>, <vimleshk@...vell.com>,
        <thaller@...hat.com>, <wizhao@...hat.com>, <kheib@...hat.com>,
        <konguyen@...hat.com>, <horms@...nel.org>, <einstein.xue@...axg.com>,
        "Shinas
 Rasheed" <srasheed@...vell.com>
Subject: [PATCH net v4 0/4] Fix race conditions in ndo_get_stats64

Fix race conditions in ndo_get_stats64 by checking if netdev is running
before per queue resources are accessed, and remove stats fetch from
firmware which is currently unnecessary

Changes:
V4:
  - Check if netdev is running, as decision for accessing resources
    rather than availing lock implementations, in ndo_get_stats64()

V3: https://lore.kernel.org/all/20241218115111.2407958-1-srasheed@marvell.com/
  - Added warn log that happened due to rcu_read_lock in commit message

V2: https://lore.kernel.org/all/20241216075842.2394606-1-srasheed@marvell.com/
  - Changed sync mechanism to fix race conditions from using an atomic
    set_bit ops to a much simpler synchronize_net()

V1: https://lore.kernel.org/all/20241203072130.2316913-1-srasheed@marvell.com/

Shinas Rasheed (4):
  octeon_ep: fix race conditions in ndo_get_stats64
  octeon_ep: remove firmware stats fetch in ndo_get_stats64
  octeon_ep_vf: fix race conditions in ndo_get_stats64
  octeon_ep_vf: remove firmware stats fetch in ndo_get_stats64

 .../net/ethernet/marvell/octeon_ep/octep_main.c    | 14 ++++----------
 .../ethernet/marvell/octeon_ep_vf/octep_vf_main.c  | 12 ++++--------
 2 files changed, 8 insertions(+), 18 deletions(-)

-- 
2.25.1