From: Mark Brown <broonie@kernel•org>
To: Oreoluwa Babatunde <oreoluwa.babatunde@oss•qualcomm.com>,
Joy Zou <joy.zou@nxp•com>, Rob Herring <robh@kernel•org>,
Marek Szyprowski <m.szyprowski@samsung•com>
Cc: Linux Kernel Mailing List <linux-kernel@vger•kernel.org>,
Linux Next Mailing List <linux-next@vger•kernel.org>
Subject: linux-next: build failure after merge of the final tree
Date: Wed, 28 Jan 2026 16:17:39 +0000 [thread overview]
Message-ID: <aXo2o-G8IqGUlu5q@sirena.org.uk> (raw)
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Hi all,
After merging the final tree, today's linux-next build (x86_64
allnoconfig) failed like this:
In file included from /tmp/next/build/mm/mm_init.c:29:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /tmp/next/build/mm/show_mem.c:9:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Building: powerpc allnoconfig
In file included from /tmp/next/build/mm/mm_init.c:29:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /tmp/next/build/mm/show_mem.c:9:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Building: powerpc64 allnoconfig
In file included from /tmp/next/build/mm/mm_init.c:29:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /tmp/next/build/mm/show_mem.c:9:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Building: powerpc ppc44x_defconfig
In file included from /tmp/next/build/mm/mm_init.c:29:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /tmp/next/build/mm/show_mem.c:9:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /tmp/next/build/kernel/dma/pool.c:6:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/tmp/next/build/arch/powerpc/boot/dts/sam440ep.dts:266.22-287.5: Warning (interrupt_provider): /plb/pci@ec000000: '#interrupt-cells' found, but node is not an interrupt provider
Building: powerpc pseries_le_defconfig
In file included from /tmp/next/build/arch/powerpc/kvm/book3s_hv_builtin.c:15:
/tmp/next/build/include/linux/cma.h:68:13: error: 'cma_skip_dt_default_reserved_mem' defined but not used [-Werror=unused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[5]: *** [/tmp/next/build/scripts/Makefile.build:287: arch/powerpc/kvm/book3s_hv_builtin.o] Error 1
make[5]: *** Waiting for unfinished jobs....
make[4]: *** [/tmp/next/build/scripts/Makefile.build:544: arch/powerpc/kvm] Error 2
make[4]: *** Waiting for unfinished jobs....
In file included from /tmp/next/build/mm/mm_init.c:29:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /tmp/next/build/mm/show_mem.c:9:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /tmp/next/build/arch/powerpc/kernel/fadump.c:25:
/tmp/next/build/include/linux/cma.h:68:13: error: 'cma_skip_dt_default_reserved_mem' defined but not used [-Werror=unused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make[5]: *** [/tmp/next/build/scripts/Makefile.build:287: arch/powerpc/kernel/fadump.o] Error 1
make[5]: *** Waiting for unfinished jobs....
make[4]: *** [/tmp/next/build/scripts/Makefile.build:544: arch/powerpc/kernel] Error 2
make[3]: *** [/tmp/next/build/scripts/Makefile.build:544: arch/powerpc] Error 2
make[3]: *** Waiting for unfinished jobs....
In file included from /tmp/next/build/mm/hugetlb.c:33:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /tmp/next/build/mm/hugetlb_cma.c:4:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /tmp/next/build/fs/proc/meminfo.c:18:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /tmp/next/build/mm/cma.c:28:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from /tmp/next/build/kernel/crash_reserve.c:17:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
Caused by commit
26332ae848f08 (of: reserved_mem: Allow reserved_mem framework detect "cma=" kernel param)
I have applied the patch below, which I will post as a submission.
From 51ca24819b2b7ab6ecb632f14cb5975563fe933f Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@kernel•org>
Date: Wed, 28 Jan 2026 15:22:21 +0000
Subject: [PATCH] cma: Fix stub for cma_skip_dt_default_reserved_mem()
The stub for cma_skip_dt_default_reserved_mem() is not inlined so
triggers build warnings:
In file included from /tmp/next/build/fs/proc/meminfo.c:18:
/tmp/next/build/include/linux/cma.h:68:13: warning: 'cma_skip_dt_default_reserved_mem' defined but not used [-Wunused-function]
68 | static bool cma_skip_dt_default_reserved_mem(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
which are fatal with -Werror.
Fixes: 26332ae848f08 ("of: reserved_mem: Allow reserved_mem framework detect "cma=" kernel param")
Signed-off-by: Mark Brown <broonie@kernel•org>
---
include/linux/cma.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/cma.h b/include/linux/cma.h
index 0bf408360641b..d0793eaaadaa4 100644
--- a/include/linux/cma.h
+++ b/include/linux/cma.h
@@ -65,7 +65,7 @@ extern void cma_reserve_pages_on_error(struct cma *cma);
#ifdef CONFIG_DMA_CMA
extern bool cma_skip_dt_default_reserved_mem(void);
#else
-static bool cma_skip_dt_default_reserved_mem(void)
+static inline bool cma_skip_dt_default_reserved_mem(void)
{
return false;
}
--
2.47.3
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next reply other threads:[~2026-01-28 16:17 UTC|newest]
Thread overview: 189+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-28 16:17 Mark Brown [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-03-11 15:57 linux-next: build failure after merge of the final tree Mark Brown
2026-03-11 16:11 ` Vincent Donnefort
2026-03-11 16:29 ` Marc Zyngier
2014-05-28 9:46 Stephen Rothwell
2014-05-28 9:57 ` Paul Bolle
2014-05-28 10:14 ` Paul Bolle
2014-05-28 20:21 ` Paul Bolle
2014-05-28 20:42 ` Greg KH
2014-05-28 20:48 ` Paul Bolle
2014-05-28 21:15 ` Greg KH
2014-05-28 10:24 ` Stephen Rothwell
2014-04-07 4:52 Stephen Rothwell
2014-04-07 18:26 ` Andrew Morton
2014-04-07 21:51 ` Stephen Rothwell
2014-01-30 3:55 Stephen Rothwell
2014-01-06 9:28 Stephen Rothwell
2014-01-06 23:12 ` Benjamin Herrenschmidt
2013-12-17 5:59 Stephen Rothwell
2013-12-17 8:26 ` Heiko Stübner
2013-12-16 5:47 Stephen Rothwell
2013-12-16 7:08 ` Krzysztof Kozlowski
2013-12-16 11:45 ` Mark Brown
2013-12-16 12:13 ` Krzysztof Kozlowski
2013-12-16 12:33 ` Mark Brown
2013-12-16 13:29 ` Stephen Rothwell
2013-11-18 3:19 Stephen Rothwell
2013-11-18 8:49 ` Kirill A. Shutemov
2013-11-18 23:09 ` David Miller
2013-11-18 3:01 Stephen Rothwell
2013-11-04 6:52 Stephen Rothwell
2013-11-04 17:06 ` Mark Brown
2013-10-29 9:16 Stephen Rothwell
2013-10-29 13:11 ` Linus Walleij
2013-10-29 13:20 ` Linus Walleij
2013-09-27 8:32 Stephen Rothwell
2013-09-27 14:40 ` Chris Ball
2013-08-20 7:20 Stephen Rothwell
2013-08-20 16:07 ` Dwight Engen
2013-08-20 19:28 ` Ben Myers
2013-08-21 0:22 ` Stephen Rothwell
2013-08-21 15:54 ` Ben Myers
2013-08-20 20:46 ` Arnd Bergmann
2013-08-21 5:08 ` Dwight Engen
2013-08-21 6:30 ` Jeremy Kerr
2013-08-21 15:56 ` Ben Myers
2013-03-12 4:30 Stephen Rothwell
2013-03-12 9:31 ` Daniel Hellstrom
2013-03-12 11:57 ` Stephen Rothwell
2013-03-12 16:13 ` Dmitry Torokhov
2013-03-13 11:20 ` Daniel Hellstrom
2013-02-06 7:30 Stephen Rothwell
2013-02-06 7:42 ` Stephen Rothwell
2013-02-06 17:52 ` Greg Kroah-Hartman
2013-02-06 18:40 ` David Miller
2012-10-16 3:50 Stephen Rothwell
2012-10-16 4:21 ` Al Viro
2012-07-31 5:14 Stephen Rothwell
2012-07-19 7:08 Stephen Rothwell
2012-07-19 13:53 ` Javier Muñoz
2012-07-05 8:33 Stephen Rothwell
2012-07-05 9:43 ` Alan Modra
2012-07-06 0:21 ` Stephen Rothwell
2012-07-06 0:57 ` Alan Modra
2012-07-06 3:01 ` Stephen Rothwell
2012-07-06 6:08 ` Alan Modra
2012-05-22 8:20 Stephen Rothwell
2012-05-22 19:05 ` David Miller
2012-05-23 2:08 ` Stephen Rothwell
2012-05-21 8:54 Stephen Rothwell
2012-05-21 9:12 ` Ingo Molnar
2012-05-21 9:15 ` Stephen Rothwell
2012-05-22 8:25 ` Stephen Rothwell
2012-05-23 15:35 ` Ingo Molnar
2012-05-24 7:16 ` Stephen Rothwell
2012-05-24 7:22 ` Ingo Molnar
2012-05-24 14:06 ` H. Peter Anvin
2012-02-27 7:06 Stephen Rothwell
2012-02-27 21:17 ` Greg KH
2012-02-27 21:24 ` Alan Cox
2012-02-27 7:05 Stephen Rothwell
2012-02-27 6:37 Stephen Rothwell
2012-02-27 9:19 ` Benjamin Herrenschmidt
2012-02-27 23:30 ` Benjamin Herrenschmidt
2012-01-20 7:21 Stephen Rothwell
2012-01-20 9:08 ` Deepthi Dharwar
2012-01-20 7:11 Stephen Rothwell
2012-01-20 7:34 ` Andrew Morton
2012-01-20 8:21 ` Sebastian Andrzej Siewior
2012-01-05 8:04 Stephen Rothwell
2012-01-06 0:04 ` Andrew Morton
2012-01-09 5:59 ` Stephen Rothwell
2012-01-09 6:20 ` Stephen Rothwell
2012-01-09 15:42 ` Greg KH
2012-01-09 15:54 ` Steven Rostedt
2012-01-09 16:27 ` Stephen Rothwell
2012-01-09 16:26 ` Stephen Rothwell
2012-01-09 21:35 ` David Miller
2012-01-09 21:41 ` Steven Rostedt
2011-12-17 4:22 Stephen Rothwell
2011-12-17 4:27 ` Stephen Rothwell
2011-09-30 1:38 Stephen Rothwell
2011-09-30 2:49 ` Yoshihiro Shimoda
2011-09-30 1:23 Stephen Rothwell
2011-09-30 1:12 Stephen Rothwell
2011-09-30 2:40 ` Paul Gortmaker
2011-09-30 3:05 ` Stephen Rothwell
2011-09-30 3:22 ` Paul Gortmaker
2011-09-30 1:05 Stephen Rothwell
2011-09-30 7:57 ` Heiko Carstens
2011-09-28 9:56 Stephen Rothwell
2011-09-28 12:02 ` huang ying
2011-08-23 5:48 Stephen Rothwell
2011-08-23 14:32 ` Randy Dunlap
2011-07-18 9:35 Stephen Rothwell
2011-07-18 9:30 Stephen Rothwell
2011-07-18 17:58 ` David Miller
2011-07-18 20:52 ` Sam Ravnborg
2011-05-27 5:11 Stephen Rothwell
2011-05-27 14:47 ` Mike Frysinger
2011-05-23 4:56 Stephen Rothwell
2011-05-23 5:17 ` Artem Bityutskiy
2011-05-20 6:32 Stephen Rothwell
2011-05-20 6:27 Stephen Rothwell
2011-05-20 6:23 Stephen Rothwell
2011-05-20 6:18 Stephen Rothwell
2011-05-24 2:06 ` Mike Frysinger
2011-05-24 2:51 ` Greg KH
2011-05-24 3:59 ` Stephen Rothwell
2011-05-24 12:48 ` Greg KH
2011-05-24 21:52 ` Stephen Rothwell
2011-05-24 4:01 ` Linus Torvalds
2011-05-24 4:10 ` Mike Frysinger
2011-05-24 17:10 ` Mike Frysinger
2011-05-24 17:29 ` Linus Torvalds
2011-05-25 9:24 ` Felipe Balbi
2011-05-25 12:13 ` Mike Frysinger
2011-05-20 6:12 Stephen Rothwell
2011-05-20 15:24 ` Linus Torvalds
2011-05-20 16:16 ` Thomas Gleixner
2011-05-20 16:29 ` Linus Torvalds
2011-03-28 3:44 Stephen Rothwell
2011-03-24 3:30 Stephen Rothwell
2011-03-24 4:13 ` Andrew Morton
2011-03-24 19:55 ` Tony Luck
2011-01-31 6:26 Stephen Rothwell
2011-01-15 2:10 Stephen Rothwell
2011-01-15 4:27 ` Andrea Arcangeli
2010-11-29 2:07 Stephen Rothwell
2010-11-09 4:03 Stephen Rothwell
2010-09-16 5:15 Stephen Rothwell
2010-09-16 5:47 ` Takashi Iwai
2010-08-11 3:38 Stephen Rothwell
2010-08-11 5:23 ` Andrew Morton
2010-08-11 7:38 ` Stephen Rothwell
2010-07-27 7:00 Stephen Rothwell
2010-07-16 7:11 Stephen Rothwell
2010-07-16 18:39 ` Yinghai Lu
2010-07-16 20:58 ` Russell King
2010-07-16 23:07 ` Stephen Rothwell
2010-06-23 16:19 Stephen Rothwell
2010-06-24 0:36 ` Stephen Rothwell
2010-06-24 9:00 ` Catalin Marinas
2010-06-24 9:09 ` Russell King
2010-06-24 10:18 ` Phil Carmody
2010-05-25 4:10 Stephen Rothwell
2010-05-25 4:58 ` David Miller
2010-05-25 5:14 ` Herbert Xu
2010-05-25 6:56 ` David Miller
2010-05-14 5:53 Stephen Rothwell
2010-05-14 15:03 ` Don Zickus
2010-05-15 7:37 ` Ingo Molnar
2010-05-15 20:28 ` Frederic Weisbecker
2010-05-14 15:11 ` Don Zickus
2010-04-27 5:49 Stephen Rothwell
2010-04-28 9:41 ` Alexander Graf
2010-04-28 9:48 ` Avi Kivity
2010-04-28 15:21 ` Marcelo Tosatti
2010-04-08 5:35 Stephen Rothwell
2010-04-08 6:25 ` David Miller
2010-04-08 14:15 ` John Linn
2010-04-08 22:59 ` Stephen Rothwell
2010-04-08 23:01 ` John Linn
[not found] <20100318160220.b7eaded6.sfr@canb.auug.org.au>
2010-03-18 6:21 ` David Miller
[not found] <20100301203453.938e4136.sfr@canb.auug.org.au>
2010-03-01 9:42 ` Jens Axboe
2010-03-01 10:07 ` Stephen Rothwell
2010-03-01 9:40 Stephen Rothwell
2010-03-01 9:38 Stephen Rothwell
2010-03-02 20:47 ` Greg KH
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