Subject: Re: linux-next: Tree for Dec 1 (riscv, crash_core)

From: Baoquan He <[email-masked]>
Date: Sat, 2 Dec 2023 10:22:15 +0800

On 12/01/23 at 11:53am, Randy Dunlap wrote:
> 
> 
> On 11/30/23 18:37, Stephen Rothwell wrote:
> > Hi all,
> > 
> > Changes since 20231130:
> > 
> 
> on riscv 32-bit or 64-bit, with
> # CONFIG_MMU is not set

Can you provide your .config so that I reproduce it? Disabling
CONFIG_MMU need find all places where it's selected by other config items.

> 
> In file included from ../arch/riscv/kernel/crash_core.c:3:
> ../arch/riscv/kernel/crash_core.c: In function 'arch_crash_save_vmcoreinfo':
> ../arch/riscv/kernel/crash_core.c:8:27: error: 'VA_BITS' undeclared (first use in this function)
>     8 |         VMCOREINFO_NUMBER(VA_BITS);
>       |                           ^~~~~~~
> ../include/linux/crash_core.h:78:64: note: in definition of macro 'VMCOREINFO_NUMBER'
>    78 |         vmcoreinfo_append_str("NUMBER(%s)=%ld\n", #name, (long)name)
>       |                                                                ^~~~
> ../arch/riscv/kernel/crash_core.c:8:27: note: each undeclared identifier is reported only once for each function it appears in
>     8 |         VMCOREINFO_NUMBER(VA_BITS);
>       |                           ^~~~~~~
> ../include/linux/crash_core.h:78:64: note: in definition of macro 'VMCOREINFO_NUMBER'
>    78 |         vmcoreinfo_append_str("NUMBER(%s)=%ld\n", #name, (long)name)
>       |                                                                ^~~~
> ../arch/riscv/kernel/crash_core.c:12:58: warning: format '%lx' expects argument of type 'long unsigned int', but argument 2 has type 'int' [-Wformat=]
>    12 |         vmcoreinfo_append_str("NUMBER(VMALLOC_START)=0x%lx\n", VMALLOC_START);
>       |                                                        ~~^
>       |                                                          |
>       |                                                          long unsigned int
>       |                                                        %x
> ../arch/riscv/kernel/crash_core.c:14:64: error: 'VMEMMAP_START' undeclared (first use in this function)
>    14 |         vmcoreinfo_append_str("NUMBER(VMEMMAP_START)=0x%lx\n", VMEMMAP_START);
>       |                                                                ^~~~~~~~~~~~~
> ../arch/riscv/kernel/crash_core.c:15:62: error: 'VMEMMAP_END' undeclared (first use in this function); did you mean 'MEMREMAP_ENC'?
>    15 |         vmcoreinfo_append_str("NUMBER(VMEMMAP_END)=0x%lx\n", VMEMMAP_END);
>       |                                                              ^~~~~~~~~~~
>       |                                                              MEMREMAP_ENC
> 
> 64-bit only: 
> 
> ../arch/riscv/kernel/crash_core.c:17:64: error: 'MODULES_VADDR' undeclared (first use in this function)
>    17 |         vmcoreinfo_append_str("NUMBER(MODULES_VADDR)=0x%lx\n", MODULES_VADDR);
>       |                                                                ^~~~~~~~~~~~~
> ../arch/riscv/kernel/crash_core.c:18:62: error: 'MODULES_END' undeclared (first use in this function)
>    18 |         vmcoreinfo_append_str("NUMBER(MODULES_END)=0x%lx\n", MODULES_END);
>       |                                                              ^~~~~~~~~~~
> 
> 
> 
> -- 
> ~Randy
>