linux-kernel - Re: [PATCH] bitfield: avoid gcc-8 -Wint-in-bool-context warning

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Date:   Tue, 14 Aug 2018 16:13:54 -0700
From:   Andrew Morton <akpm@...ux-foundation.org>
To:     Arnd Bergmann <arnd@...db.de>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Johannes Berg <johannes@...solutions.net>,
        Jakub Kicinski <jakub.kicinski@...ronome.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Al Viro <viro@...iv.linux.org.uk>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] bitfield: avoid gcc-8 -Wint-in-bool-context warning

On Tue, 14 Aug 2018 16:11:06 -0700 Andrew Morton <akpm@...ux-foundation.org> wrote:

> > include/linux/bitfield.h:103:3: note: in expansion of macro '__BF_FIELD_CHECK'
> >    __BF_FIELD_CHECK(_mask, _reg, 0U, "FIELD_GET: "); \
> >    ^~~~~~~~~~~~~~~~
> > drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c:1025:21: note: in expansion of macro 'FIELD_GET'
> >     le16_encode_bits(FIELD_GET(IWL_RX_HE_PHY_SIBG_SYM_OR_USER_NUM_MASK,
> 
> Newer compilers will previously be used on older kernels, so I'll add a
> cc:stable here.

No I won't.  Older kernels don't have the iwlwifi patch.