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authorFiroz Khan <firoz.khan@linaro.org>2018-09-26 11:06:25 +0530
committerHelge Deller <deller@gmx.de>2018-12-10 08:26:03 +0100
commitdbf91a54f7cbf2b33c622e42ec0ec87f0423426c (patch)
treec06b362fd79fff3014266ee9985f57b4e3a4bec9 /arch/parisc/include/uapi/asm
parentparisc: move __IGNORE* entries to non uapi header (diff)
downloadlinux-dev-dbf91a54f7cbf2b33c622e42ec0ec87f0423426c.tar.xz
linux-dev-dbf91a54f7cbf2b33c622e42ec0ec87f0423426c.zip
parisc: add __NR_syscalls along with __NR_Linux_syscalls
__NR_Linux_syscalls macro holds the number of system call exist in parisc architecture. We have to change the value of __NR_Linux_syscalls, if we add or delete a system call. One of the patch in this patch series has a script which will generate a uapi header based on syscall.tbl file. The syscall.tbl file contains the total number of system calls information. So we have two option to update __NR- _Linux_syscalls value. 1. Update __NR_Linux_syscalls in asm/unistd.h manually by counting the no.of system calls. No need to update __NR- _Linux_syscalls until we either add a new system call or delete existing system call. 2. We can keep this feature it above mentioned script, that will count the number of syscalls and keep it in a generated file. In this case we don't need to expli- citly update __NR_Linux_syscalls in asm/unistd.h file. The 2nd option will be the recommended one. For that, I added the __NR_syscalls macro in uapi/asm/unistd.h along with __NR_Linux_syscalls asm/unistd.h. The macro __NR_sys- calls also added for making the name convention same across all architecture. While __NR_syscalls isn't strictly part of the uapi, having it as part of the generated header to simplifies the implementation. We also need to enclose this macro with #ifdef __KERNEL__ to avoid side effects. Signed-off-by: Firoz Khan <firoz.khan@linaro.org> Acked-by: Helge Deller <deller@gmx.de> Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to '')
-rw-r--r--arch/parisc/include/uapi/asm/unistd.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index bb52e1211548..53cc748296a3 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -366,8 +366,10 @@
#define __NR_statx (__NR_Linux + 349)
#define __NR_io_pgetevents (__NR_Linux + 350)
-#define __NR_Linux_syscalls (__NR_io_pgetevents + 1)
+#ifdef __KERNEL__
+#define __NR_syscalls 351
+#endif
-#define LINUX_GATEWAY_ADDR 0x100
+#define LINUX_GATEWAY_ADDR 0x100
#endif /* _UAPI_ASM_PARISC_UNISTD_H_ */