linux-kernel - [tip:WIP.x86/alternatives 2/9] kernel/jump_label.c:387:10-11: WARNING: return of 0/1 in function 'jump_label_can_update

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Date:   Sat, 20 Apr 2019 08:25:46 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Daniel Bristot de Oliveira <bristot@...hat.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        tipbuild@...or.com, Ingo Molnar <mingo@...nel.org>
Subject: [tip:WIP.x86/alternatives 2/9] kernel/jump_label.c:387:10-11:
 WARNING: return of 0/1 in function 'jump_label_can_update_check' with return
 type bool

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git WIP.x86/alternatives
head:   1f30946b1a01baf22df6faf74c0a1e602bb6cac7
commit: 41bef31d0abe29b5888b33b526cacc8a30795318 [2/9] jump_label: Add the jump_label_can_update_check() helper

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>



coccinelle warnings: (new ones prefixed by >>)

>> kernel/jump_label.c:387:10-11: WARNING: return of 0/1 in function 'jump_label_can_update_check' with return type bool

vim +/jump_label_can_update_check +387 kernel/jump_label.c

   376	
   377	bool jump_label_can_update_check(struct jump_entry *entry, bool init)
   378	{
   379		/*
   380		 * An entry->code of 0 indicates an entry which has been
   381		 * disabled because it was in an init text area.
   382		 */
   383		if (init || !jump_entry_is_init(entry)) {
   384			if (!kernel_text_address(jump_entry_code(entry))) {
   385				WARN_ONCE(1, "can't patch jump_label at %pS",
   386					  (void *)jump_entry_code(entry));
 > 387				return 0;
   388			}
   389			return 1;
   390		}
   391		return 0;
   392	}
   393	

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