Commit fd749fe4 authored by Randy Dunlap's avatar Randy Dunlap Committed by Russell King

ARM: 9065/1: OABI compat: fix build when EPOLL is not enabled

When CONFIG_EPOLL is not set/enabled, sys_oabi-compat.c has build
errors. Fix these by surrounding them with ifdef CONFIG_EPOLL/endif
and providing stubs for the "EPOLL is not set" case.

../arch/arm/kernel/sys_oabi-compat.c: In function 'sys_oabi_epoll_ctl':
../arch/arm/kernel/sys_oabi-compat.c:257:6: error: implicit declaration of function 'ep_op_has_event' [-Werror=implicit-function-declaration]
  257 |  if (ep_op_has_event(op) &&
      |      ^~~~~~~~~~~~~~~
../arch/arm/kernel/sys_oabi-compat.c:264:9: error: implicit declaration of function 'do_epoll_ctl'; did you mean 'sys_epoll_ctl'? [-Werror=implicit-function-declaration]
  264 |  return do_epoll_ctl(epfd, op, fd, &kernel, false);
      |         ^~~~~~~~~~~~

Fixes: c281634c ("ARM: compat: remove KERNEL_DS usage in sys_oabi_epoll_ctl()")
Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Reported-by: kernel test robot <lkp@intel.com> # from an lkp .config file
Cc: linux-arm-kernel@lists.infradead.org
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: patches@armlinux.org.uk
Acked-by: default avatarNicolas Pitre <nico@fluxnic.net>
Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
parent 4cc96c60
...@@ -248,6 +248,7 @@ struct oabi_epoll_event { ...@@ -248,6 +248,7 @@ struct oabi_epoll_event {
__u64 data; __u64 data;
} __attribute__ ((packed,aligned(4))); } __attribute__ ((packed,aligned(4)));
#ifdef CONFIG_EPOLL
asmlinkage long sys_oabi_epoll_ctl(int epfd, int op, int fd, asmlinkage long sys_oabi_epoll_ctl(int epfd, int op, int fd,
struct oabi_epoll_event __user *event) struct oabi_epoll_event __user *event)
{ {
...@@ -298,6 +299,20 @@ asmlinkage long sys_oabi_epoll_wait(int epfd, ...@@ -298,6 +299,20 @@ asmlinkage long sys_oabi_epoll_wait(int epfd,
kfree(kbuf); kfree(kbuf);
return err ? -EFAULT : ret; return err ? -EFAULT : ret;
} }
#else
asmlinkage long sys_oabi_epoll_ctl(int epfd, int op, int fd,
struct oabi_epoll_event __user *event)
{
return -EINVAL;
}
asmlinkage long sys_oabi_epoll_wait(int epfd,
struct oabi_epoll_event __user *events,
int maxevents, int timeout)
{
return -EINVAL;
}
#endif
struct oabi_sembuf { struct oabi_sembuf {
unsigned short sem_num; unsigned short sem_num;
......
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