Hello:
This patch was applied to netdev/net-next.git (main) by Jakub Kicinski kuba@kernel.org:
On Fri, 5 Sep 2025 12:19:57 +0200 you wrote:
In the old days, RDS used FMR (Fast Memory Registration) to register IB MRs to be used by RDMA. A newer and better verbs based registration/de-registration method called FRWR (Fast Registration Work Request) was added to RDS by commit 1659185fb4d0 ("RDS: IB: Support Fastreg MR (FRMR) memory registration mode") in 2016.
Detection and enablement of FRWR was done in commit 2cb2912d6563 ("RDS: IB: add Fastreg MR (FRMR) detection support"). But said commit added an extern bool prefer_frmr, which was not used by said commit - nor used by later commits. Hence, remove it.
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Here is the summary with links: - [net-next,v4] rds: ib: Remove unused extern definition https://git.kernel.org/netdev/net-next/c/9f0730b063b4
You are awesome, thank you!