linux-kernel - Re: [PATCH] rdma/siw: fix enum type mismatch warnings

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Message-Id: <OF85440727.0E9065F0-ON00258435.003FECCD-00258435.003FECD0@notes.na.collabserv.com>
Date:   Fri, 12 Jul 2019 11:38:13 +0000
From:   "Bernard Metzler" <BMT@...ich.ibm.com>
To:     "Arnd Bergmann" <arnd@...db.de>
Cc:     "Doug Ledford" <dledford@...hat.com>,
        "Jason Gunthorpe" <jgg@...pe.ca>,
        "Jason Gunthorpe" <jgg@...lanox.com>, linux-rdma@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rdma/siw: fix enum type mismatch warnings

-----"Arnd Bergmann" <arnd@...db.de> wrote: -----

>To: "Bernard Metzler" <bmt@...ich.ibm.com>, "Doug Ledford"
><dledford@...hat.com>, "Jason Gunthorpe" <jgg@...pe.ca>
>From: "Arnd Bergmann" <arnd@...db.de>
>Date: 07/12/2019 10:53AM
>Cc: "Arnd Bergmann" <arnd@...db.de>, "Jason Gunthorpe"
><jgg@...lanox.com>, linux-rdma@...r.kernel.org,
>linux-kernel@...r.kernel.org
>Subject: [EXTERNAL] [PATCH] rdma/siw: fix enum type mismatch warnings
>
>The values in map_cqe_status[] don't match the type:
>
>drivers/infiniband/sw/siw/siw_cq.c:31:4: error: implicit conversion
>from enumeration type 'enum siw_wc_status' to different enumeration
>type 'enum siw_opcode' [-Werror,-Wenum-conversion]
>        { SIW_WC_SUCCESS, IB_WC_SUCCESS },
>        ~ ^~~~~~~~~~~~~~
>drivers/infiniband/sw/siw/siw_cq.c:32:4: error: implicit conversion
>from enumeration type 'enum siw_wc_status' to different enumeration
>type 'enum siw_opcode' [-Werror,-Wenum-conversion]
>        { SIW_WC_LOC_LEN_ERR, IB_WC_LOC_LEN_ERR },
>        ~ ^~~~~~~~~~~~~~~~~~
>
>Change the struct definition to make them match and stop the
>warning.
>
>Fixes: b0fff7317bb4 ("rdma/siw: completion queue methods")
>Signed-off-by: Arnd Bergmann <arnd@...db.de>
>---
> drivers/infiniband/sw/siw/siw_cq.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/drivers/infiniband/sw/siw/siw_cq.c
>b/drivers/infiniband/sw/siw/siw_cq.c
>index e2a0ee40d5b5..e381ae9b7d62 100644
>--- a/drivers/infiniband/sw/siw/siw_cq.c
>+++ b/drivers/infiniband/sw/siw/siw_cq.c
>@@ -25,7 +25,7 @@ static int map_wc_opcode[SIW_NUM_OPCODES] = {
> };
> 
> static struct {
>-	enum siw_opcode siw;
>+	enum siw_wc_status siw;
> 	enum ib_wc_status ib;
> } map_cqe_status[SIW_NUM_WC_STATUS] = {
> 	{ SIW_WC_SUCCESS, IB_WC_SUCCESS },
>-- 
>2.20.0
>
>

Hi Arnd, this got already fixed.

Many thanks!
Bernard.