riscv: signal: fix signal_minsigstksz

commit 564fc8eb6f78e01292ff10801f318feae6153fdd upstream.

The init_rt_signal_env() funciton is called before the alternative patch
is applied, so using the alternative-related API to check the availability
of an extension within this function doesn't have the intended effect.
This patch reorders the init_rt_signal_env() and apply_boot_alternatives()
to get the correct signal_minsigstksz.

Fixes: e92f469b07 ("riscv: signal: Report signal frame size to userspace via auxv")
Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Andy Chiu <andybnac@gmail.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20241220083926.19453-3-yongxuan.wang@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This commit is contained in:

Yong-Xuan Wang

2024-12-20 16:39:24 +08:00

committed by

Greg Kroah-Hartman

parent fa19f64d63

commit 45233962ea

1 changed files with 1 additions and 1 deletions

									
										arch/riscv/kernel/setup.c
									
		+1
		-1
	
												View File
												
				@@ -288,8 +288,8 @@ void __init setup_arch(char **cmdline_p)

					riscv_init_cbo_blocksizes();

					riscv_fill_hwcap();

					init_rt_signal_env();

					apply_boot_alternatives();

					init_rt_signal_env();

					if (IS_ENABLED(CONFIG_RISCV_ISA_ZICBOM) &&

					    riscv_isa_extension_available(NULL, ZICBOM))