Re: [musl] Re: [GIT PULL] asm-generic changes for 5.19

From: Arnd Bergmann <arnd@kernel.org>
To: Huacai Chen <chenhuacai@kernel.org>
Cc: musl@lists.openwall.com, WANG Xuerui <kernel@xen0n.name>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	linux-arch <linux-arch@vger.kernel.org>,
	GNU C Library <libc-alpha@sourceware.org>,
	Yoshinori Sato <ysato@users.sourceforge.jp>,
	Peter Zijlstra <peterz@infradead.org>,
	Marc Zyngier <maz@kernel.org>,
	Masahiro Yamada <masahiroy@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Jiaxun Yang <jiaxun.yang@flygoat.com>,
	ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
	Jianmin Lv <lvjianmin@loongson.cn>,
	linux-pci <linux-pci@vger.kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	Huacai Chen <chenhuacai@loongson.cn>
Subject: Re: [musl] Re: [GIT PULL] asm-generic changes for 5.19
Date: Tue, 31 May 2022 22:40:58 +0200	[thread overview]
Message-ID: <CAK8P3a0tu4ZANdxY-beVb4C1hKrn2VJqpfwBemhqHkr6760b7A@mail.gmail.com> (raw)
In-Reply-To: <CAK8P3a3UfDJkoAkA6an2kXyAYSzz2vt__19JoQmum8LZehXrgg@mail.gmail.com>

On Tue, May 31, 2022 at 10:07 PM Arnd Bergmann <arnd@kernel.org> wrote:
>
> On Tue, May 31, 2022 at 6:01 PM Huacai Chen <chenhuacai@kernel.org> wrote:
> > On Tue, May 31, 2022 at 7:15 PM Arnd Bergmann <arnd@kernel.org> wrote:
> > > On Tue, May 31, 2022 at 10:17 AM Huacai Chen <chenhuacai@kernel.org> wrote:
>
> > https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson.git/log/?h=loongarch-next
> > has been updated. Now this branch droped irqchip drivers and pci
> > drivers. But the existing irqchip drivers need some small adjustment
> > to avoid build errors [1], and I hope Marc can give an Acked-by.
>
> Ok, glad you got that working.
>

From an allmodconfig build, I see two more things that could be addressed first:

drivers/pci/probe.c: In function 'pci_scan_bridge_extend':
drivers/pci/probe.c:1298:44: error: implicit declaration of function
'pcibios_assign_all_busses' [-Werror=implicit-function-declaration]
 1298 |         if ((secondary || subordinate) &&
!pcibios_assign_all_busses() &&
      |                                            ^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/pci/setup-res.c: In function '__pci_assign_resource':
drivers/pci/setup-res.c:257:46: error: 'PCIBIOS_MIN_IO' undeclared
(first use in this function)
  257 |         min = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO :
PCIBIOS_MIN_MEM;
      |                                              ^~~~~~~~~~~~~~
drivers/pci/setup-res.c:257:46: note: each undeclared identifier is
reported only once for each function it appears in
drivers/pci/setup-res.c:257:63: error: 'PCIBIOS_MIN_MEM' undeclared
(first use in this function)
  257 |         min = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO :
PCIBIOS_MIN_MEM;
      |
^~~~~~~~~~~~~~~
drivers/pci/quirks.c: In function 'quirk_isa_dma_hangs':
drivers/pci/quirks.c:252:14: error: 'isa_dma_bridge_buggy' undeclared
(first use in this function)
  252 |         if (!isa_dma_bridge_buggy) {
      |              ^~~~~~~~~~~~~~~~~~~~

I think you accidentally dropped the asm/pci.h header, so adding that one back
should make it build again.

lib/test_printf.c:215: warning: "PTR" redefined
  215 | #define PTR ((void *)0xffff0123456789abUL)
      |
In file included from /git/arm-soc/arch/loongarch/include/asm/vdso/vdso.h:9,
                 from
/git/arm-soc/arch/loongarch/include/asm/vdso/gettimeofday.h:13,
                 from /git/arm-soc/include/vdso/datapage.h:137,
                 from /git/arm-soc/arch/loongarch/include/asm/vdso.h:11,
                 from /git/arm-soc/arch/loongarch/include/asm/elf.h:13,
                 from /git/arm-soc/include/linux/elf.h:6,
                 from /git/arm-soc/include/linux/module.h:19,
                 from /git/arm-soc/lib/test_printf.c:10:
/git/arm-soc/arch/loongarch/include/asm/asm.h:182: note: this is the
location of the previous definition
  182 | #define PTR             .dword
      |

Not sure what the best fix is for this, maybe the contents of asm/asm.h could
just be hidden in an "#idef __ASSEMBLER__" check. This can be a follow-up
patch when the branch is merged.

        Arnd