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| author |   Deepa Dinamani <deepa.kernel@gmail.com> | 2018-03-13 21:03:28 -0700 |
|---|---|---|
| committer |   Arnd Bergmann <arnd@arndb.de> | 2018-04-19 13:30:40 +0200 |
| commit | 17435e5f8cf3ba8b3df1aa662f9921f0ccdd8a28 (patch) | |
| tree | a27bfc628671de82c326623a9a8c0257a6e8e487 /arch/Kconfig | |
| parent | time: Introduce CONFIG_64BIT_TIME in architectures (diff) | |
| download | linux-dev-17435e5f8cf3ba8b3df1aa662f9921f0ccdd8a28.tar.xz linux-dev-17435e5f8cf3ba8b3df1aa662f9921f0ccdd8a28.zip | |
time: Introduce CONFIG_COMPAT_32BIT_TIME
Compat functions are now used to support 32 bit time_t in
compat mode on 64 bit architectures and in native mode on
32 bit architectures.
Introduce COMPAT_32BIT_TIME to conditionally compile these
functions.
Note that turning off 32 bit time_t support requires more
changes on architecture side. For instance, architecure
syscall tables need to be updated to drop support for 32 bit
time_t syscalls.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/Kconfig')
| -rw-r--r-- | arch/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 16e6acfe8711..4377b0cec976 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -878,6 +878,13 @@ config 64BIT_TIME architectures, and 64-bit architectures as part of compat syscall handling. +config COMPAT_32BIT_TIME + def_bool (!64BIT && 64BIT_TIME) || COMPAT + help + This enables 32 bit time_t support in addition to 64 bit time_t support. + This is relevant on all 32-bit architectures, and 64-bit architectures + as part of compat syscall handling. + config ARCH_NO_COHERENT_DMA_MMAP bool |