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powerpc/syscalls: Use sys_old_select() in ppc_select()
Instead of opencodying the copy of parameters, use the generic sys_old_select(). Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/4de983ad254739da1fe6e9f273baf387b7043ae0.1615398498.git.christophe.leroy@csgroup.eu
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4b8cda5881
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2 changed files with 3 additions and 10 deletions
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@ -40,6 +40,7 @@
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#define __ARCH_WANT_SYS_SIGPROCMASK
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#ifdef CONFIG_PPC32
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#define __ARCH_WANT_OLD_STAT
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#define __ARCH_WANT_SYS_OLD_SELECT
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#endif
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#ifdef CONFIG_PPC64
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#define __ARCH_WANT_SYS_TIME
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@ -82,16 +82,8 @@ int
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ppc_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, struct __kernel_old_timeval __user *tvp)
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{
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if ( (unsigned long)n >= 4096 )
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{
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unsigned long __user *buffer = (unsigned long __user *)n;
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if (!access_ok(buffer, 5*sizeof(unsigned long))
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|| __get_user(n, buffer)
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|| __get_user(inp, ((fd_set __user * __user *)(buffer+1)))
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|| __get_user(outp, ((fd_set __user * __user *)(buffer+2)))
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|| __get_user(exp, ((fd_set __user * __user *)(buffer+3)))
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|| __get_user(tvp, ((struct __kernel_old_timeval __user * __user *)(buffer+4))))
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return -EFAULT;
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}
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return sys_old_select((void __user *)n);
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return sys_select(n, inp, outp, exp, tvp);
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}
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#endif
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