kernel: remove linux 4.4 support

[openwrt/staging/chunkeey.git] / target / linux / generic / pending-4.4 / 091-MIPS-c-r4k-Exclude-sibling-CPUs-in-SMP-calls.patch

diff --git a/target/linux/generic/pending-4.4/091-MIPS-c-r4k-Exclude-sibling-CPUs-in-SMP-calls.patch b/target/linux/generic/pending-4.4/091-MIPS-c-r4k-Exclude-sibling-CPUs-in-SMP-calls.patch
deleted file mode 100644 (file)
index 8d5030c..0000000
--- a/target/linux/generic/pending-4.4/091-MIPS-c-r4k-Exclude-sibling-CPUs-in-SMP-calls.patch
+++ /dev/null
@@ -1,37 +0,0 @@
-From: James Hogan <james.hogan@imgtec.com>
-Date: Thu, 3 Mar 2016 21:30:42 +0000
-Subject: [PATCH] MIPS: c-r4k: Exclude sibling CPUs in SMP calls
-
-When performing SMP calls to foreign cores, exclude sibling CPUs from
-the provided map, as we already handle the local core on the current
-CPU. This prevents an IPI call from for example core 0, VPE 1 to VPE 0
-on the same core.
-
-Signed-off-by: James Hogan <james.hogan@imgtec.com>
-Cc: Ralf Baechle <ralf@linux-mips.org>
-Cc: Paul Burton <paul.burton@imgtec.com>
-Cc: linux-mips@linux-mips.org
----
-
---- a/arch/mips/mm/c-r4k.c
-+++ b/arch/mips/mm/c-r4k.c
-@@ -96,8 +96,17 @@ static inline void r4k_on_each_cpu(unsig
-                                  void (*func) (void *info), void *info)
- {
-       preempt_disable();
--      if (r4k_op_needs_ipi(type))
--              smp_call_function_many(&cpu_foreign_map, func, info, 1);
-+      /* cpu_foreign_map and cpu_sibling_map[] undeclared when !CONFIG_SMP */
-+#ifdef CONFIG_SMP
-+      if (r4k_op_needs_ipi(type)) {
-+              struct cpumask mask;
-+
-+              /* exclude sibling CPUs */
-+              cpumask_andnot(&mask, &cpu_foreign_map,
-+                             &cpu_sibling_map[smp_processor_id()]);
-+              smp_call_function_many(&mask, func, info, 1);
-+      }
-+#endif
-       func(info);
-       preempt_enable();
- }