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module: merge repetitive strings in module_sig_check()

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[ Upstream commit 705e9195187d85249fbb0eaa844b1604a98fbc9a ]

The 'reason' variable in module_sig_check() points to 3 strings across
the *switch* statement, all needlessly starting with the same text.
Let's put the starting text into the pr_notice() call -- it saves 21
bytes of the object code (x86 gcc 10.2.1).

Suggested-by: Joe Perches <joe@perches.com>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Sergey Shtylyov <s.shtylyov@omprussia.ru>
Signed-off-by: Jessica Yu <jeyu@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Sergey Shtylyov 2020-10-31 23:06:45 +03:00 committed by Greg Kroah-Hartman
parent 1a8c5fbe2f
commit d9b98ccdfe
1 changed files with 5 additions and 4 deletions
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9
kernel/module.c
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@ -2908,16 +2908,17 @@ static int module_sig_check(struct load_info *info, int flags)
* enforcing, certain errors are non-fatal.
*/
case -ENODATA:
reason = "Loading of unsigned module";
reason = "unsigned module";
goto decide;
case -ENOPKG:
reason = "Loading of module with unsupported crypto";
reason = "module with unsupported crypto";
goto decide;
case -ENOKEY:
reason = "Loading of module with unavailable key";
reason = "module with unavailable key";
decide:
if (is_module_sig_enforced()) {
pr_notice("%s: %s is rejected\n", info->name, reason);
pr_notice("%s: loading of %s is rejected\n",
info->name, reason);
return -EKEYREJECTED;
}