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From: Stephen Rothwell <sfr@canb•auug.org.au>
To: "Gustavo A. R. Silva" <gustavo@embeddedor•com>
Cc: Linux Kernel Mailing List <linux-kernel@vger•kernel.org>,
	Linux Next Mailing List <linux-next@vger•kernel.org>
Subject: linux-next: build warning after merge of the kspp-gustavo tree
Date: Wed, 22 Nov 2023 09:50:09 +1100	[thread overview]
Message-ID: <20231122095009.294994e0@canb.auug.org.au> (raw)

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Hi all,

After merging the kspp-gustavo tree, today's linux-next build (x86_64
allmodconfig) produced this warning:

In function 'aspeed_create_fan_tach_channel',
    inlined from 'aspeed_create_fan' at drivers/hwmon/aspeed-pwm-tacho.c:877:2,
    inlined from 'aspeed_pwm_tacho_probe' at drivers/hwmon/aspeed-pwm-tacho.c:936:9:
drivers/hwmon/aspeed-pwm-tacho.c:751:49: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
  751 |                 priv->fan_tach_ch_source[index] = pwm_source;
      |                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~
drivers/hwmon/aspeed-pwm-tacho.c: In function 'aspeed_pwm_tacho_probe':
drivers/hwmon/aspeed-pwm-tacho.c:193:12: note: at offset [48, 255] into destination object 'fan_tach_ch_source' of size 16
  193 |         u8 fan_tach_ch_source[16];
      |            ^~~~~~~~~~~~~~~~~~

Exposed by commit

  1b56c90018f0 ("Makefile: Enable -Wstringop-overflow globally")

This is with your tree on top of Linus' tree (and some fix patches but
nothing that obviously touches anything relevent) and CONFIG_WERROR
not set.

-- 
Cheers,
Stephen Rothwell

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             reply	other threads:[~2023-11-21 22:50 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-21 22:50 Stephen Rothwell [this message]
2023-11-21 23:19 ` linux-next: build warning after merge of the kspp-gustavo tree Gustavo A. R. Silva
  -- strict thread matches above, loose matches on Subject: below --
2023-11-21 22:47 Stephen Rothwell
2023-11-21 23:07 ` Gustavo A. R. Silva
2023-11-21 23:19   ` Stephen Rothwell
2023-11-21 23:23     ` Gustavo A. R. Silva
2021-09-29 23:53 Stephen Rothwell
2021-09-30  0:05 ` Gustavo A. R. Silva
2021-07-13  0:22 Stephen Rothwell
2021-07-13  1:10 ` Gustavo A. R. Silva
2021-07-13  2:39   ` Gustavo A. R. Silva
2021-06-22 22:39 Stephen Rothwell
2021-06-22 22:46 ` Gustavo A. R. Silva
2021-06-22 23:01   ` Gustavo A. R. Silva
2021-06-23  3:03     ` Stephen Rothwell
2021-06-23 13:14 ` David Sterba
2021-06-23 18:39   ` Gustavo A. R. Silva

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