linux-kernel - [PATCH 4/4] ASoC: loongson: fix compile testing on 32-bit

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 16 Jun 2023 11:00:40 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Arnd Bergmann <arnd@...db.de>, Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>,
        Yingkun Meng <mengyingkun@...ngson.cn>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: [PATCH 4/4] ASoC: loongson: fix compile testing on 32-bit

From: Arnd Bergmann <arnd@...db.de>

DIV_ROUND_CLOSEST() does not work on 64-bit variables when building for
a 32-bit target:

ld.lld: error: undefined symbol: __udivdi3
>>> referenced by loongson_i2s.c
>>>               sound/soc/loongson/loongson_i2s.o:(loongson_i2s_hw_params) in archive vmlinux.a

Use DIV_ROUND_CLOSEST_ULL() instead.

Fixes: d24028606e764 ("ASoC: loongson: Add Loongson ASoC Sound Card Support")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 sound/soc/loongson/loongson_i2s.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/loongson/loongson_i2s.c b/sound/soc/loongson/loongson_i2s.c
index f73b6d6f16c23..b919f0fe83615 100644
--- a/sound/soc/loongson/loongson_i2s.c
+++ b/sound/soc/loongson/loongson_i2s.c
@@ -89,7 +89,7 @@ static int loongson_i2s_hw_params(struct snd_pcm_substream *substream,
 		bclk_ratio = DIV_ROUND_CLOSEST(sysclk,
 					       (bits * chans * fs * 2)) - 1;
 		mclk_ratio = clk_rate / sysclk;
-		mclk_ratio_frac = DIV_ROUND_CLOSEST(((u64)clk_rate << 16),
+		mclk_ratio_frac = DIV_ROUND_CLOSEST_ULL(((u64)clk_rate << 16),
 						    sysclk) - (mclk_ratio << 16);
 
 		regmap_read(i2s->regmap, LS_I2S_CFG, &val);
-- 
2.39.2