[qemu-xen master] linux-user, ppc: fix clock_nanosleep() for linux-user-ppc

[patchbot@xxxxxxx]

commit 445883885a3507e3a0898df0084a59ba65ee9979
Author:     Laurent Vivier <laurent@xxxxxxxxx>
AuthorDate: Fri Jul 24 07:45:06 2020 +0100
Commit:     Alex Bennée <alex.bennee@xxxxxxxxxx>
CommitDate: Mon Jul 27 09:41:47 2020 +0100

    linux-user, ppc: fix clock_nanosleep() for linux-user-ppc
    
    Our safe_clock_nanosleep() returns -1 and updates errno.
    
    We don't need to update the CRF bit in syscall.c because it will
    be updated in ppc/cpu_loop.c as the return value is negative.
    
    Signed-off-by: Laurent Vivier <laurent@xxxxxxxxx>
    Signed-off-by: Alex Bennée <alex.bennee@xxxxxxxxxx>
    Reviewed-by: Richard Henderson <richard.henderson@xxxxxxxxxx>
    Message-Id: <20200722174612.2917566-3-laurent@xxxxxxxxx>
    Message-Id: <20200724064509.331-14-alex.bennee@xxxxxxxxxx>
---
 linux-user/syscall.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 43a6e28396..f5c4f6b95d 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -11840,13 +11840,6 @@ static abi_long do_syscall1(void *cpu_env, int num, 
abi_long arg1,
             host_to_target_timespec(arg4, &ts);
         }
 
-#if defined(TARGET_PPC)
-        /* clock_nanosleep is odd in that it returns positive errno values.
-         * On PPC, CR0 bit 3 should be set in such a situation. */
-        if (ret && ret != -TARGET_ERESTARTSYS) {
-            ((CPUPPCState *)cpu_env)->crf[0] |= 1;
-        }
-#endif
         return ret;
     }
 #endif
--
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