perf: remove linux 4.4 workarounds

Signed-off-by: Felix Fietkau <[email protected]>

package/devel/perf/Makefile

@@ -61,12 +61,6 @@ MAKE_FLAGS = \
 	WERROR=0 \
 	prefix=/usr
 
-ifdef CONFIG_LINUX_4_4
-ifdef CONFIG_USE_MUSL
- MAKE_FLAGS += EXTRA_CFLAGS="-I$(CURDIR)/musl-include -include $(CURDIR)/musl-compat.h -D__UCLIBC__"
-endif
-endif
-
 define Build/Compile
 	+$(MAKE_FLAGS) $(MAKE) $(PKG_JOBS) \
 		-C $(PKG_BUILD_DIR) \

package/devel/perf/musl-compat.h

@@ -1,43 +0,0 @@
-#ifndef __PERF_MUSL_COMPAT_H
-#define __PERF_MUSL_COMPAT_H
-
-#ifndef __ASSEMBLER__
-
-#include <sys/ioctl.h>
-#include <asm/unistd.h>
-#include <unistd.h>
-#include <stdio.h>
-
-#undef _IOWR
-#undef _IOR
-#undef _IOW
-#undef _IOC
-#undef _IO
-
-#define _SC_LEVEL1_DCACHE_LINESIZE -1
-
-static inline long sysconf_wrap(int name)
-{
-	FILE *f;
-	int val;
-
-	switch (name) {
-	case _SC_LEVEL1_DCACHE_LINESIZE:
-		f = fopen("/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size", "r");
-		if (!f)
-			return 0;
-
-		if (fscanf(f, "%d", &val) != 1)
-			return 0;
-
-		fclose(f);
-		return val;
-	default:
-		return sysconf(name);
-	}
-}
-
-#define sysconf(_n) sysconf_wrap(_n)
-
-#endif
-#endif

package/devel/perf/musl-include/asm/errno.h

@@ -1,8 +0,0 @@
-#ifndef __MUSL_COMPAT_ASM_ERRNO_H
-#define __MUSL_COMPAT_ASM_ERRNO_H
-
-/* Avoid including different versions of errno.h, the defines (incorrectly)
- * cause a redefinition error on PowerPC */
-#include <errno.h>
-
-#endif

package/devel/perf/musl-include/string.h

@@ -1,18 +0,0 @@
-#ifndef __MUSL_COMPAT_STRING_H
-#define __MUSL_COMPAT_STRING_H
-
-#include_next <string.h>
-
-/* Change XSI compliant version into GNU extension hackery */
-static inline char *
-gnu_strerror_r(int err, char *buf, size_t buflen)
-{
-	if (strerror_r(err, buf, buflen))
-		return NULL;
-	return buf;
-}
-#ifdef _GNU_SOURCE
-#define strerror_r gnu_strerror_r
-#endif
-
-#endif