s390: remove obsolete ieee_emulation_warnings

s390 math emulation was removed with commit 5a79859ae0f3 ("s390:
remove 31 bit support"), rendering ieee_emulation_warnings useless.
The code still built because it was protected by CONFIG_MATHEMU, which
was no longer selectable.

This patch removes the sysctl_ieee_emulation_warnings declaration and
the sysctl entry declaration.

Link: https://lkml.kernel.org/r/20200214172628.3598516-1-steve@sk2.org
Reviewed-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Stephen Kitt <steve@sk2.org>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 361ef5e..aadb3d0 100644 (file)
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -84,7 +84,6 @@ void s390_update_cpu_mhz(void);
 void cpu_detect_mhz_feature(void);
 
 extern const struct seq_operations cpuinfo_op;
-extern int sysctl_ieee_emulation_warnings;
 extern void execve_tail(void);
 extern void __bpon(void);
 

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index d396aaa..ad5b88a 100644 (file)
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -805,15 +805,6 @@ static struct ctl_table kern_table[] = {
                .extra2         = &maxolduid,
        },
 #ifdef CONFIG_S390
-#ifdef CONFIG_MATHEMU
-       {
-               .procname       = "ieee_emulation_warnings",
-               .data           = &sysctl_ieee_emulation_warnings,
-               .maxlen         = sizeof(int),
-               .mode           = 0644,
-               .proc_handler   = proc_dointvec,
-       },
-#endif
        {
                .procname       = "userprocess_debug",
                .data           = &show_unhandled_signals,