From: YueHaibing yuehaibing@huawei.com
commit 53ad46169fe2996fe1b623ba6c9c4fa33847876f upstream.
As of commit 5801f064e351 ("net: ipv6: unexport __init-annotated seg6_hmac_init()"), EXPORT_SYMBOL and __init is a bad combination because the .init.text section is freed up after the initialization. Hence, modules cannot use symbols annotated __init. The access to a freed symbol may end up with kernel panic.
This remove the EXPORT_SYMBOL to fix modpost warning:
WARNING: modpost: vmlinux.o(___ksymtab+seg6_hmac_net_init+0x0): Section mismatch in reference from the variable __ksymtab_seg6_hmac_net_init to the function .init.text:seg6_hmac_net_init() The symbol seg6_hmac_net_init is exported and annotated __init Fix this by removing the __init annotation of seg6_hmac_net_init or drop the export.
Fixes: bf355b8d2c30 ("ipv6: sr: add core files for SR HMAC support") Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: YueHaibing yuehaibing@huawei.com Link: https://lore.kernel.org/r/20220628033134.21088-1-yuehaibing@huawei.com Signed-off-by: Jakub Kicinski kuba@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- net/ipv6/seg6_hmac.c | 1 - 1 file changed, 1 deletion(-)
--- a/net/ipv6/seg6_hmac.c +++ b/net/ipv6/seg6_hmac.c @@ -408,7 +408,6 @@ int __net_init seg6_hmac_net_init(struct
return 0; } -EXPORT_SYMBOL(seg6_hmac_net_init);
void seg6_hmac_exit(void) {