Re: [PATCH 2/2] MIPS: set NR_syscall_tables appropriately

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On 27.09.2016 14:04, Ralf Baechle wrote:
On Mon, Aug 29, 2016 at 11:30:07AM +0200, Marcin Nowakowski wrote:

Depending on the kernel configuration, up to 3 syscall tables can be
used in parallel - so set the number properly to ensure syscall tracing
is set up properly.

Signed-off-by: Marcin Nowakowski <marcin.nowakowski@xxxxxxxxxx>
---
 arch/mips/include/asm/unistd.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index e558130..71162f3d 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -22,6 +22,10 @@
 #define NR_syscalls  (__NR_O32_Linux + __NR_O32_Linux_syscalls)
 #endif

+#define NR_syscall_tables (1 + \
+	IS_ENABLED(CONFIG_MIPS32_O32) + \
+	IS_ENABLED(CONFIG_MIPS32_N32))
+
 #ifndef __ASSEMBLY__

NR_syscall_tables is a new symbol but I don't see any users of this
symbol?


Hi Ralf,

Patch 1/2 from this series did make use of that symbol.
However, this patch has now been superseded by a slightly different approach following a discussion on the original proposal ...

https://lkml.org/lkml/2016/9/16/57

Marcin




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