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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/um
parentparisc: move __IGNORE* entries to non uapi header (diff)
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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 'arch/um')
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