Messages in this thread | | | Date | Fri, 16 Dec 2022 08:03:22 -0800 (PST) | Subject | Re: [PATCH] RDMA/rxe: Avoid unused variable warnings on 32-bit targets | From | Palmer Dabbelt <> |
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On Thu, 15 Dec 2022 19:11:39 PST (-0800), yanjun.zhu@linux.dev wrote: > 在 2022/12/16 7:28, Palmer Dabbelt 写道: >> From: Palmer Dabbelt <palmer@rivosinc.com> >> > > In > https://patchwork.kernel.org/project/linux-rdma/patch/1669905568-62-2-git-send-email-yangx.jy@fujitsu.com/ > > In this link, it seems that a similar commit for this problem. > Please check it.
That one also fixes the compile issues for me.
> > Thanks > Zhu Yanjun > >> These variables are not used on 32-bit targets as there's a big ifdef >> around their use. This results on a handful of warnings for 32-bit >> RISC-V allyesconfig: >> >> CC drivers/infiniband/sw/rxe/rxe_resp.o >> linux/drivers/infiniband/sw/rxe/rxe_resp.c: In function 'atomic_write_reply': >> linux/drivers/infiniband/sw/rxe/rxe_resp.c:794:13: error: unused variable 'payload' [-Werror=unused-variable] >> 794 | int payload = payload_size(pkt); >> | ^~~~~~~ >> linux/drivers/infiniband/sw/rxe/rxe_resp.c:793:24: error: unused variable 'mr' [-Werror=unused-variable] >> 793 | struct rxe_mr *mr = qp->resp.mr; >> | ^~ >> linux/drivers/infiniband/sw/rxe/rxe_resp.c:791:19: error: unused variable 'dst' [-Werror=unused-variable] >> 791 | u64 src, *dst; >> | ^~~ >> linux/drivers/infiniband/sw/rxe/rxe_resp.c:791:13: error: unused variable 'src' [-Werror=unused-variable] >> 791 | u64 src, *dst; >> | ^~~ >> cc1: all warnings being treated as errors >> >> Fixes: 034e285f8b99 ("RDMA/rxe: Make responder support atomic write on RC service") >> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com> >> --- >> drivers/infiniband/sw/rxe/rxe_resp.c | 8 ++++---- >> 1 file changed, 4 insertions(+), 4 deletions(-) >> >> diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c >> index 7a60c7709da0..18977d5a3316 100644 >> --- a/drivers/infiniband/sw/rxe/rxe_resp.c >> +++ b/drivers/infiniband/sw/rxe/rxe_resp.c >> @@ -788,10 +788,10 @@ static enum resp_states atomic_reply(struct rxe_qp *qp, >> static enum resp_states atomic_write_reply(struct rxe_qp *qp, >> struct rxe_pkt_info *pkt) >> { >> - u64 src, *dst; >> - struct resp_res *res = qp->resp.res; >> - struct rxe_mr *mr = qp->resp.mr; >> - int payload = payload_size(pkt); >> + __maybe_unused u64 src, *dst; >> + __maybe_unused struct resp_res *res = qp->resp.res; >> + __maybe_unused struct rxe_mr *mr = qp->resp.mr; >> + __maybe_unused int payload = payload_size(pkt); >> >> if (!res) { >> res = rxe_prepare_res(qp, pkt, RXE_ATOMIC_WRITE_MASK);
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