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init: simplify early_hostname()

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Inline the strscpy() check and remove the redundant arglen variable.  Use
%zu to format the unsigned maxlen argument and add a newline after the
truncation warning.

Link: https://lore.kernel.org/20260828174337.609333-2-blum@kernel.org
Signed-off-by: Thorsten Blum <blum@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Thorsten Blum 2026-08-28 19:43:37 +02:00 committed by Andrew Morton
parent b4cc0016f8
commit 37ee144a07
1 changed files with 3 additions and 5 deletions
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8
init/version.c
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@ -21,16 +21,14 @@ static int __init early_hostname(char *arg)
{
size_t bufsize = sizeof(init_uts_ns.name.nodename);
size_t maxlen = bufsize - 1;
ssize_t arglen;
if (!arg)
return -EINVAL;
arglen = strscpy(init_uts_ns.name.nodename, arg, bufsize);
if (arglen < 0) {
pr_warn("hostname parameter exceeds %zd characters and will be truncated",
if (strscpy(init_uts_ns.name.nodename, arg, bufsize) < 0)
pr_warn("hostname parameter exceeds %zu characters and will be truncated\n",
maxlen);
}
return 0;
}
early_param("hostname", early_hostname);