linux-yocto/arch/microblaze
Simon Schuster e0d6fb7923 arch: copy_thread: pass clone_flags as u64
[ Upstream commit bbc46b23af ]

With the introduction of clone3 in commit 7f192e3cd3 ("fork: add
clone3") the effective bit width of clone_flags on all architectures was
increased from 32-bit to 64-bit, with a new type of u64 for the flags.
However, for most consumers of clone_flags the interface was not
changed from the previous type of unsigned long.

While this works fine as long as none of the new 64-bit flag bits
(CLONE_CLEAR_SIGHAND and CLONE_INTO_CGROUP) are evaluated, this is still
undesirable in terms of the principle of least surprise.

Thus, this commit fixes all relevant interfaces of the copy_thread
function that is called from copy_process to consistently pass
clone_flags as u64, so that no truncation to 32-bit integers occurs on
32-bit architectures.

Signed-off-by: Simon Schuster <schuster.simon@siemens-energy.com>
Link: https://lore.kernel.org/20250901-nios2-implement-clone3-v2-3-53fcf5577d57@siemens-energy.com
Fixes: c5febea095 ("fork: Pass struct kernel_clone_args into copy_thread")
Acked-by: Guo Ren (Alibaba Damo Academy) <guoren@kernel.org>
Acked-by: Andreas Larsson <andreas@gaisler.com> # sparc
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-15 12:03:13 +02:00
..
boot
configs printk: Remove redundant CONFIG_BASE_FULL 2024-05-06 17:39:09 +02:00
include mm: pgtable: fix pte_swp_exclusive 2025-06-11 14:52:08 -07:00
kernel arch: copy_thread: pass clone_flags as u64 2025-10-15 12:03:13 +02:00
lib microblaze: fix typos in comments 2022-05-02 08:36:10 +02:00
mm mm: call ctor/dtor for kernel PTEs 2025-05-11 17:48:21 -07:00
pci microblaze/PCI: Moving PCI iounmap and dependent code 2022-11-25 11:39:23 +01:00
Kbuild
Kconfig tracing: Remove redundant config HAVE_FTRACE_MCOUNT_RECORD 2025-07-22 20:15:56 -04:00
Kconfig.debug
Kconfig.platform
Makefile kbuild: fix "cat: .version: No such file or directory" 2022-11-24 09:26:02 +09:00