From 87248d31d1055b56e01a62d9320b4e118bc84e0e Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 4 Apr 2018 14:12:39 +0200 Subject: [PATCH] netdevsim: remove incorrect __net_initdata annotations The __net_initdata section cannot currently be used for structures that get cleaned up in an exitcall using unregister_pernet_operations: WARNING: vmlinux.o(.text+0x868c34): Section mismatch in reference from the function nsim_devlink_exit() to the (unknown reference) .init.data:(unknown) The function nsim_devlink_exit() references the (unknown reference) __initdata (unknown). This is often because nsim_devlink_exit lacks a __initdata annotation or the annotation of (unknown) is wrong. WARNING: vmlinux.o(.text+0x868c64): Section mismatch in reference from the function nsim_devlink_init() to the (unknown reference) .init.data:(unknown) WARNING: vmlinux.o(.text+0x8692bc): Section mismatch in reference from the function nsim_fib_exit() to the (unknown reference) .init.data:(unknown) WARNING: vmlinux.o(.text+0x869300): Section mismatch in reference from the function nsim_fib_init() to the (unknown reference) .init.data:(unknown) As that warning tells us, discarding the structure after a module is loaded would lead to a undefined behavior when that module is removed. It might be possible to change that annotation so it has no effect for loadable modules, but I have not figured out exactly how to do that, and we want this to be fixed in -rc1. This just removes the annotations, just like we do for all other such modules. Fixes: 37923ed6b8ce ("netdevsim: Add simple FIB resource controller via devlink") Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- drivers/net/netdevsim/devlink.c | 2 +- drivers/net/netdevsim/fib.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/netdevsim/devlink.c b/drivers/net/netdevsim/devlink.c index 27ae05c5fdaf..1dba47936456 100644 --- a/drivers/net/netdevsim/devlink.c +++ b/drivers/net/netdevsim/devlink.c @@ -267,7 +267,7 @@ static int __net_init nsim_devlink_netns_init(struct net *net) return 0; } -static struct pernet_operations nsim_devlink_net_ops __net_initdata = { +static struct pernet_operations nsim_devlink_net_ops = { .init = nsim_devlink_netns_init, .id = &nsim_devlink_id, .size = sizeof(bool), diff --git a/drivers/net/netdevsim/fib.c b/drivers/net/netdevsim/fib.c index 0d105bafa261..9bfe9e151e13 100644 --- a/drivers/net/netdevsim/fib.c +++ b/drivers/net/netdevsim/fib.c @@ -230,7 +230,7 @@ static int __net_init nsim_fib_netns_init(struct net *net) return 0; } -static struct pernet_operations nsim_fib_net_ops __net_initdata = { +static struct pernet_operations nsim_fib_net_ops = { .init = nsim_fib_netns_init, .id = &nsim_fib_net_id, .size = sizeof(struct nsim_fib_data), -- 2.30.2