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From:   "Valdis Kl=?utf-8?Q?=c4=93?=tnieks" <valdis.kletnieks@gmail.com>
To:     Namjae Jeon <namjae.jeon@samsung.com>
cc:     linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
        gregkh@linuxfoundation.org, hch@lst.de, sj1557.seo@samsung.com,
        linkinjeon@gmail.com, tytso@mit.edu
Subject: Re: [PATCH v9 09/13] exfat: add misc operations
In-reply-to: <20200107115202.shjpp6g3gsrhhkuy@pali>
References: <20200102082036.29643-1-namjae.jeon@samsung.com> <CGME20200102082407epcas1p4cf10cd3d0ca2903707ab01b1cc523a05@epcas1p4.samsung.com> <20200102082036.29643-11-namjae.jeon@samsung.com> <20200105165115.37dyrcwtgf6zgc6r@pali> <85woa4jrl2.fsf@collabora.com>
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Date:   Thu, 09 Jan 2020 17:04:15 -0500
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When compiling on a 32-bit system like Raspian on an RPi4, the compile di=
es:

  CC =5BM=5D  fs/exfat/misc.o
fs/exfat/misc.c: In function 'exfat_time_unix2fat':
fs/exfat/misc.c:157:16: error: 'UNIX_SECS_2108' undeclared (first use in =
this function); did you mean 'UNIX_SECS_1980'?
  if (second >=3D UNIX_SECS_2108) =7B
                =5E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E=7E
                UNIX_SECS_1980
fs/exfat/misc.c:157:16: note: each undeclared identifier is reported only=
 once for each function it appears in
make=5B2=5D: *** =5Bscripts/Makefile.build:266: fs/exfat/misc.o=5D Error =
1

The problem is that the definition of UNIX_SECS_2108  is wrapped:

+=23if BITS_PER_LONG =3D=3D 64
+=23define UNIX_SECS_2108    4354819200L
+=23endif

but the usage isn't.