kernel: update kernel 4.4 to version 4.4.6

[openwrt/svn-archive/archive.git] / target / linux / generic / patches-4.4 / 103-MIPS-smp.c-Fix-uninitialised-temp_foreign_map.patch

diff --git a/target/linux/generic/patches-4.4/103-MIPS-smp.c-Fix-uninitialised-temp_foreign_map.patch b/target/linux/generic/patches-4.4/103-MIPS-smp.c-Fix-uninitialised-temp_foreign_map.patch
deleted file mode 100644 (file)
index 6fe9d96..0000000
--- a/target/linux/generic/patches-4.4/103-MIPS-smp.c-Fix-uninitialised-temp_foreign_map.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-From: James Hogan <james.hogan@imgtec.com>
-Date: Fri, 4 Mar 2016 10:10:51 +0000
-Subject: [PATCH] MIPS: smp.c: Fix uninitialised temp_foreign_map
-
-When calculate_cpu_foreign_map() recalculates the cpu_foreign_map
-cpumask it uses the local variable temp_foreign_map without initialising
-it to zero. Since the calculation only ever sets bits in this cpumask
-any existing bits at that memory location will remain set and find their
-way into cpu_foreign_map too. This could potentially lead to cache
-operations suboptimally doing smp calls to multiple VPEs in the same
-core, even though the VPEs share primary caches.
-
-Therefore initialise temp_foreign_map using cpumask_clear() before use.
-
-Fixes: cccf34e9411c ("MIPS: c-r4k: Fix cache flushing for MT cores")
-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/kernel/smp.c
-+++ b/arch/mips/kernel/smp.c
-@@ -121,6 +121,7 @@ static inline void calculate_cpu_foreign
-       cpumask_t temp_foreign_map;
- 
-       /* Re-calculate the mask */
-+      cpumask_clear(&temp_foreign_map);
-       for_each_online_cpu(i) {
-               core_present = 0;
-               for_each_cpu(k, &temp_foreign_map)