From: Nathan Chancellor <natechancellor@gmail.com>
To: Liang Yang <liang.yang@amlogic.com>,
Boris Brezillon <bbrezillon@kernel.org>,
Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Richard Weinberger <richard@nod.at>,
linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org,
Kevin Hilman <khilman@baylibre.com>,
linux-amlogic@lists.infradead.org,
Nathan Chancellor <natechancellor@gmail.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH] mtd: rawnand: meson: Fix linking error on 32-bit platforms
Date: Tue, 29 Jan 2019 14:46:57 -0700 [thread overview]
Message-ID: <20190129214657.5877-1-natechancellor@gmail.com> (raw)
On arm little endian allyesconfig:
ld.lld: error: undefined symbol: __aeabi_uldivmod
>>> referenced by meson_nand.c
>>> mtd/nand/raw/meson_nand.o:(meson_nfc_setup_data_interface) in archive drivers/built-in.a
The dividend tBERS_max is u64, meaning we need to use DIV_ROUND_UP_ULL
(which wraps do_div) to prevent the compiler from emitting
__aebi_uldivmod.
Fixes: 2d570b34b41a ("mtd: rawnand: meson: add support for Amlogic NAND flash controller")
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
---
drivers/mtd/nand/raw/meson_nand.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/mtd/nand/raw/meson_nand.c b/drivers/mtd/nand/raw/meson_nand.c
index e858d58d97b0..6f12a96195d1 100644
--- a/drivers/mtd/nand/raw/meson_nand.c
+++ b/drivers/mtd/nand/raw/meson_nand.c
@@ -1116,8 +1116,8 @@ int meson_nfc_setup_data_interface(struct nand_chip *nand, int csline,
div * NFC_CLK_CYCLE);
meson_chip->tadl = DIV_ROUND_UP(PSEC_TO_NSEC(timings->tADL_min),
div * NFC_CLK_CYCLE);
- tbers_clocks = DIV_ROUND_UP(PSEC_TO_NSEC(timings->tBERS_max),
- div * NFC_CLK_CYCLE);
+ tbers_clocks = DIV_ROUND_UP_ULL(PSEC_TO_NSEC(timings->tBERS_max),
+ div * NFC_CLK_CYCLE);
meson_chip->tbers_max = ilog2(tbers_clocks);
if (!is_power_of_2(tbers_clocks))
meson_chip->tbers_max++;
--
2.20.1
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
next reply other threads:[~2019-01-29 21:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-29 21:46 Nathan Chancellor [this message]
2019-01-30 5:20 ` [PATCH] mtd: rawnand: meson: Fix linking error on 32-bit platforms Liang Yang
2019-01-30 9:26 ` Liang Yang
2019-01-30 9:32 ` Miquel Raynal
2019-01-30 15:27 ` Nathan Chancellor
2019-01-31 2:42 ` Liang Yang
2019-02-05 19:06 ` Miquel Raynal
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190129214657.5877-1-natechancellor@gmail.com \
--to=natechancellor@gmail.com \
--cc=bbrezillon@kernel.org \
--cc=khilman@baylibre.com \
--cc=liang.yang@amlogic.com \
--cc=linux-amlogic@lists.infradead.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=miquel.raynal@bootlin.com \
--cc=richard@nod.at \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).