Hi Jarkko, The issue was found when crypto/public_key.h was included, but CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE was not enabled. If CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE was not enabled, the public_key_verify_signature simply returned -EINVAL, which was not declared without linux/errno.h being included. Thanks, Clay On 2024/1/8 10:24 PM, Jarkko Sakkinen wrote: > On Sun Jan 7, 2024 at 3:28 PM EET, wrote: >> From: Clay Chang <clayc@xxxxxxx> >> >> This patch includes linux/errno.h to address the issue of 'EINVAL' being >> undeclared. >> >> Signed-off-by: Clay Chang <clayc@xxxxxxx> >> --- >> include/crypto/public_key.h | 1 + >> 1 file changed, 1 insertion(+) >> >> diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h >> index 462f8a34cdf8..b7f308977c84 100644 >> --- a/include/crypto/public_key.h >> +++ b/include/crypto/public_key.h >> @@ -10,6 +10,7 @@ >> #ifndef _LINUX_PUBLIC_KEY_H >> #define _LINUX_PUBLIC_KEY_H >> >> +#include <linux/errno.h> >> #include <linux/keyctl.h> >> #include <linux/oid_registry.h> >> > > Please provide evidence that issue exist (applies for any possible kernel issue). > > BR, Jarkko
