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Bootconfig fixes for v6.9-rc3: 

- fs/proc: Fix to not show original kernel cmdline more than twice on
   /proc/bootconfig.
 - fs/proc: Fix to show the original cmdline only if the bootconfig
   modifies it.
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Merge tag 'bootconfig-fixes-v6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull bootconfig fixes from Masami Hiramatsu:

 - show the original cmdline only once, and only if it was modeified by
   bootconfig

* tag 'bootconfig-fixes-v6.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  fs/proc: Skip bootloader comment if no embedded kernel parameters
  fs/proc: remove redundant comments from /proc/bootconfig
This commit is contained in:
Linus Torvalds 2024-04-10 19:42:45 -07:00
parent 9875c0beb8 c722cea208
commit 03a55b6391
3 changed files with 12 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
fs/proc/bootconfig.c
View File

@ -62,12 +62,12 @@ static int __init copy_xbc_key_value_list(char *dst, size_t size)
break;
dst += ret;
}
if (ret >= 0 && boot_command_line[0]) {
ret = snprintf(dst, rest(dst, end), "# Parameters from bootloader:\n# %s\n",
boot_command_line);
if (ret > 0)
dst += ret;
}
}
if (cmdline_has_extra_options() && ret >= 0 && boot_command_line[0]) {
ret = snprintf(dst, rest(dst, end), "# Parameters from bootloader:\n# %s\n",
boot_command_line);
if (ret > 0)
dst += ret;
}
out:
kfree(key);

1
include/linux/bootconfig.h
View File

@ -10,6 +10,7 @@
#ifdef __KERNEL__
#include <linux/kernel.h>
#include <linux/types.h>
bool __init cmdline_has_extra_options(void);
#else /* !__KERNEL__ */
/*
* NOTE: This is only for tools/bootconfig, because tools/bootconfig will

5
init/main.c
View File

@ -487,6 +487,11 @@ static int __init warn_bootconfig(char *str)
early_param("bootconfig", warn_bootconfig);
bool __init cmdline_has_extra_options(void)
{
return extra_command_line || extra_init_args;
}
/* Change NUL term back to "=", to make "param" the whole string. */
static void __init repair_env_string(char *param, char *val)
{