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SubjectRe: [PATCH v2 15/15] x86: convert to setup_initial_init_mm()
On Fri, 4 Jun 2021 15:06:33 +0800 Kefeng Wang <wangkefeng.wang@huawei.com> wrote:

> Use setup_initial_init_mm() helper to simplify code.
>
> ...
>
> --- a/arch/x86/kernel/setup.c
> +++ b/arch/x86/kernel/setup.c
> @@ -868,10 +868,7 @@ void __init setup_arch(char **cmdline_p)
>
> if (!boot_params.hdr.root_flags)
> root_mountflags &= ~MS_RDONLY;
> - init_mm.start_code = (unsigned long) _text;
> - init_mm.end_code = (unsigned long) _etext;
> - init_mm.end_data = (unsigned long) _edata;
> - init_mm.brk = _brk_end;
> + setup_initial_init_mm(_text, _etext, _edata, _brk_end);
>
> code_resource.start = __pa_symbol(_text);
> code_resource.end = __pa_symbol(_etext)-1;

arch/x86/kernel/setup.c:873:47: warning: passing argument 4 of 'setup_initial_init_mm' makes pointer from integer without a cast [-Wint-conversion]
873 | setup_initial_init_mm(_text, _etext, _edata, _brk_end);
| ^~~~~~~~
| |
| long unsigned int
In file included from ./include/linux/pid_namespace.h:7,
from ./include/linux/ptrace.h:10,
from ./include/linux/elfcore.h:11,
from ./include/linux/crash_core.h:6,
from ./include/linux/kexec.h:18,
from ./include/linux/crash_dump.h:5,
from arch/x86/kernel/setup.c:9:
./include/linux/mm.h:248:29: note: expected 'void *' but argument is of type 'long unsigned int'
248 | void *end_data, void *brk);
| ~~~~~~^~~


afaict the other architectures will warn this way, not sure.

Please check all that, refresh ,retest and resend?

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