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init/main.c: check if rdinit was explicitly set before printing warning

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The rdinit parameter is set by default, and attempted during boot even if
not specified in the command line.  Only print the warning about rdinit
being inaccessible if the rdinit value was found in command line; it's
just noise otherwise.

[akpm@linux-foundation.org: move ramdisk_execute_command_set into __initdata]
Link: https://lkml.kernel.org/r/20260111125635.53682-1-lillian@star-ark.net
Signed-off-by: Lillian Berry <lillian@star-ark.net>
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Douglas Anderson <dianders@chromium.org>
Cc: Francesco Valla <francesco@valla.it>
Cc: Guo Weikang <guoweikang.kernel@gmail.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Huan Yang <link@vivo.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "Mike Rapoport (Microsoft)" <rppt@kernel.org>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Thomas Gleixner <tglx@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Lillian Berry 2026-01-11 07:56:35 -05:00 • committed by Andrew Morton
parent 4cc67b0484
commit a906f3ae44
1 changed files with 5 additions and 2 deletions
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7
init/main.c
View file

@ -162,6 +162,7 @@ static size_t initargs_offs;
static char *execute_command;
static char *ramdisk_execute_command = "/init";
static bool __initdata ramdisk_execute_command_set;
/*
* Used to generate warnings if static_key manipulation functions are used
@ -623,6 +624,7 @@ static int __init rdinit_setup(char *str)
unsigned int i;
ramdisk_execute_command = str;
ramdisk_execute_command_set = true;
/* See "auto" comment in init_setup */
for (i = 1; i < MAX_INIT_ARGS; i++)
argv_init[i] = NULL;
@ -1699,8 +1701,9 @@ static noinline void __init kernel_init_freeable(void)
int ramdisk_command_access;
ramdisk_command_access = init_eaccess(ramdisk_execute_command);
if (ramdisk_command_access != 0) {
pr_warn("check access for rdinit=%s failed: %i, ignoring\n",
ramdisk_execute_command, ramdisk_command_access);
if (ramdisk_execute_command_set)
pr_warn("check access for rdinit=%s failed: %i, ignoring\n",
ramdisk_execute_command, ramdisk_command_access);
ramdisk_execute_command = NULL;
prepare_namespace();
}