Re: [PATCH AUTOSEL 6.3 5/7] riscv: Unconditionnally select KASAN_VMALLOC if KASAN

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On Fri, May 12, 2023 at 11:51:03AM +0200, Alexandre Ghiti wrote:
Hi Sasha,

On 5/9/23 05:54, Sasha Levin wrote:
From: Alexandre Ghiti <alexghiti@xxxxxxxxxxxx>

[ Upstream commit 864046c512c2cd8418dc928b91981fb12a80396c ]

If KASAN is enabled, VMAP_STACK depends on KASAN_VMALLOC so enable
KASAN_VMALLOC with KASAN so that we can enable VMAP_STACK by default.

Signed-off-by: Alexandre Ghiti <alexghiti@xxxxxxxxxxxx>
Reviewed-by: Björn Töpel <bjorn@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230203075232.274282-7-alexghiti@xxxxxxxxxxxx
Signed-off-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/riscv/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index eb7f29a412f87..d6aad84efb95e 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -118,6 +118,7 @@ config RISCV
 	select HAVE_SYSCALL_TRACEPOINTS
 	select IRQ_DOMAIN
 	select IRQ_FORCED_THREADING
+	select KASAN_VMALLOC if KASAN
 	select MODULES_USE_ELF_RELA if MODULES
 	select MODULE_SECTIONS if MODULES
 	select OF


KASAN_VMALLOC is broken for any kernel < 6.4, so this one should not be backported to any kernel (5.15, 6.1, 6.2, 6.3).

Ack, dropped. Thanks!

--
Thanks,
Sasha



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