linux-kernel - Re: [PATCH] net: fixup address-space warnings in compat_mc

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Message-Id: <20190303.205846.1228922880232983914.davem@davemloft.net>
Date:   Sun, 03 Mar 2019 20:58:46 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     ben.dooks@...ethink.co.uk
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kernel@...ts.codethink.co.uk
Subject: Re: [PATCH] net: fixup address-space warnings in
 compat_mc_{get,set}sockopt()

From: Ben Dooks <ben.dooks@...ethink.co.uk>
Date: Fri,  1 Mar 2019 18:39:44 +0000

> Add __user attributes in some of the casts in this function to avoid
> the following sparse warnings:
> 
> net/compat.c:592:57: warning: cast removes address space of expression
> net/compat.c:592:57: warning: incorrect type in initializer (different address spaces)
> net/compat.c:592:57:    expected struct compat_group_req [noderef] <asn:1>*gr32
> net/compat.c:592:57:    got void *<noident>
> net/compat.c:613:65: warning: cast removes address space of expression
> net/compat.c:613:65: warning: incorrect type in initializer (different address spaces)
> net/compat.c:613:65:    expected struct compat_group_source_req [noderef] <asn:1>*gsr32
> net/compat.c:613:65:    got void *<noident>
> net/compat.c:634:60: warning: cast removes address space of expression
> net/compat.c:634:60: warning: incorrect type in initializer (different address spaces)
> net/compat.c:634:60:    expected struct compat_group_filter [noderef] <asn:1>*gf32
> net/compat.c:634:60:    got void *<noident>
> net/compat.c:672:52: warning: cast removes address space of expression
> net/compat.c:672:52: warning: incorrect type in initializer (different address spaces)
> net/compat.c:672:52:    expected struct compat_group_filter [noderef] <asn:1>*gf32
> net/compat.c:672:52:    got void *<noident>
> 
> Signed-off-by: Ben Dooks <ben.dooks@...ethink.co.uk>

Applied to net-next, thanks.