linux-kernel - [PATCH] exec: remove checks in __register

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Message-ID: <YK1Gy1qXaLAR+tPl@localhost.localdomain>
Date:   Tue, 25 May 2021 21:49:47 +0300
From:   Alexey Dobriyan <adobriyan@...il.com>
To:     akpm@...ux-foundation.org
Cc:     linux-kernel@...r.kernel.org
Subject: [PATCH] exec: remove checks in __register_bimfmt()

Delete NULL check, all callers pass valid pointer.

Delete ->load_binary check -- failure to provide hook in a custom module
will be very noticeable at the very first execve call.

Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
---

 fs/exec.c |    3 ---
 1 file changed, 3 deletions(-)

--- a/fs/exec.c
+++ b/fs/exec.c
@@ -84,9 +84,6 @@ static DEFINE_RWLOCK(binfmt_lock);
 
 void __register_binfmt(struct linux_binfmt * fmt, int insert)
 {
-	BUG_ON(!fmt);
-	if (WARN_ON(!fmt->load_binary))
-		return;
 	write_lock(&binfmt_lock);
 	insert ? list_add(&fmt->lh, &formats) :
 		 list_add_tail(&fmt->lh, &formats);