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| author |   Arnd Bergmann <arnd@arndb.de> | 2021-08-11 08:30:27 +0100 |
|---|---|---|
| committer |   Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2021-08-20 11:39:27 +0100 |
| commit | da0b9ee43c152401f711e522c19b1468c84907bf (patch) | |
| tree | 2a36b91212fabc84fafd143701b4382b94902bd5 /arch/arm/kernel/sys_oabi-compat.c | |
| parent | ARM: 9113/1: uaccess: remove set_fs() implementation (diff) | |
| download | linux-dev-da0b9ee43c152401f711e522c19b1468c84907bf.tar.xz linux-dev-da0b9ee43c152401f711e522c19b1468c84907bf.zip | |
ARM: 9110/1: oabi-compat: fix oabi epoll sparse warning
As my patches change the oabi epoll definition, I received a report
from the kernel test robot about a pre-existing issue with a mismatched
__poll_t type.
The OABI code was correct when it was initially added in linux-2.16,
but a later (also correct) change to the generic __poll_t triggered a
type mismatch warning from sparse.
As __poll_t is always 32-bit bits wide and otherwise compatible, using
this instead of __u32 in the oabi_epoll_event definition is a valid
workaround.
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 8ced390c2b18 ("define __poll_t, annotate constants")
Fixes: ee219b946e4b ("uapi: turn __poll_t sparse checks on by default")
Fixes: 687ad0191488 ("[ARM] 3109/1: old ABI compat: syscall wrappers for ABI impedance matching")
Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/kernel/sys_oabi-compat.c')
| -rw-r--r-- | arch/arm/kernel/sys_oabi-compat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kernel/sys_oabi-compat.c b/arch/arm/kernel/sys_oabi-compat.c index 223ee46b6e75..68112c172025 100644 --- a/arch/arm/kernel/sys_oabi-compat.c +++ b/arch/arm/kernel/sys_oabi-compat.c @@ -274,7 +274,7 @@ out: } struct oabi_epoll_event { - __u32 events; + __poll_t events; __u64 data; } __attribute__ ((packed,aligned(4))); |