4.19-stable review patch. If anyone has any objections, please let me know.
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From: Laura Abbott labbott@redhat.com
commit 1cd25cbb2fedbc777f3a8c3cb1ba69b645aeaa64 upstream.
After 2dd453168643 ("kgdboc: Fix restrict error"), kgdboc_option_setup is now only used when built in, resulting in a warning when compiled as a module:
drivers/tty/serial/kgdboc.c:134:12: warning: 'kgdboc_option_setup' defined but not used [-Wunused-function] static int kgdboc_option_setup(char *opt) ^~~~~~~~~~~~~~~~~~~
Move the function under the appropriate ifdef for builtin only.
Fixes: 2dd453168643 ("kgdboc: Fix restrict error") Reported-by: Stephen Rothwell sfr@canb.auug.org.au Signed-off-by: Laura Abbott labbott@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/tty/serial/kgdboc.c | 37 +++++++++++++++++++------------------ 1 file changed, 19 insertions(+), 18 deletions(-)
--- a/drivers/tty/serial/kgdboc.c +++ b/drivers/tty/serial/kgdboc.c @@ -128,24 +128,6 @@ static void kgdboc_unregister_kbd(void) #define kgdboc_restore_input() #endif /* ! CONFIG_KDB_KEYBOARD */
-static int kgdboc_option_setup(char *opt) -{ - if (!opt) { - pr_err("kgdboc: config string not provided\n"); - return -EINVAL; - } - - if (strlen(opt) >= MAX_CONFIG_LEN) { - printk(KERN_ERR "kgdboc: config string too long\n"); - return -ENOSPC; - } - strcpy(config, opt); - - return 0; -} - -__setup("kgdboc=", kgdboc_option_setup); - static void cleanup_kgdboc(void) { if (kgdb_unregister_nmi_console()) @@ -314,6 +296,25 @@ static struct kgdb_io kgdboc_io_ops = { };
#ifdef CONFIG_KGDB_SERIAL_CONSOLE +static int kgdboc_option_setup(char *opt) +{ + if (!opt) { + pr_err("config string not provided\n"); + return -EINVAL; + } + + if (strlen(opt) >= MAX_CONFIG_LEN) { + pr_err("config string too long\n"); + return -ENOSPC; + } + strcpy(config, opt); + + return 0; +} + +__setup("kgdboc=", kgdboc_option_setup); + + /* This is only available if kgdboc is a built in for early debugging */ static int __init kgdboc_early_init(char *opt) {