[openwrt/openwrt] ramips/mt7621: drop the weak reordering patch

[LEDE Commits]

dangole pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/4b2e4518acaf1bed9c06fbd44a7f175e7fdb0a29

commit 4b2e4518acaf1bed9c06fbd44a7f175e7fdb0a29
Author: Rui Salvaterra <rsalvaterra at gmail.com>
AuthorDate: Tue Mar 30 23:59:48 2021 +0100

    ramips/mt7621: drop the weak reordering patch
    
    In order to fix random hangs on MT7621, we've been selecting
    WEAK_REORDERING_BEYOND_LLSC for years [1]. However, these random hangs have been
    most likely caused by an oversight in the MIPS implementation of the kernel
    memory consistency model, which has already been fixed for some time (and
    backported to stable) [2].
    
    Manually refreshed:
    321-mt7621-timer.patch
    
    [1] https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=5c971cd6fdd7298a2017bdb6bea870088eddb8b9
    [2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/arch/mips?h=linux-5.4.y&id=42344113ba7a1ed7b5654cd5270af0d5698d8521
    
    Suggested-by: Ilya Lipnitskiy <ilya.lipnitskiy at gmail.com>
    Tested-by: Donald Hoskins <grommish at gmail.com>
    Signed-off-by: Rui Salvaterra <rsalvaterra at gmail.com>
---
 target/linux/ramips/patches-5.10/202-weak_reordering.patch | 10 ----------
 target/linux/ramips/patches-5.10/321-mt7621-timer.patch    |  4 ++--
 2 files changed, 2 insertions(+), 12 deletions(-)

diff --git a/target/linux/ramips/patches-5.10/202-weak_reordering.patch b/target/linux/ramips/patches-5.10/202-weak_reordering.patch
deleted file mode 100644
index 074e16642f..0000000000
--- a/target/linux/ramips/patches-5.10/202-weak_reordering.patch
+++ /dev/null
@@ -1,10 +0,0 @@
---- a/arch/mips/ralink/Kconfig
-+++ b/arch/mips/ralink/Kconfig
-@@ -57,6 +57,7 @@ choice
- 		select CLKSRC_MIPS_GIC
- 		select HAVE_PCI if PCI_MT7621
- 		select SOC_BUS
-+		select WEAK_REORDERING_BEYOND_LLSC
- endchoice
- 
- choice
diff --git a/target/linux/ramips/patches-5.10/321-mt7621-timer.patch b/target/linux/ramips/patches-5.10/321-mt7621-timer.patch
index 91e14ad63b..08d5935eb0 100644
--- a/target/linux/ramips/patches-5.10/321-mt7621-timer.patch
+++ b/target/linux/ramips/patches-5.10/321-mt7621-timer.patch
@@ -77,10 +77,10 @@
  	void __iomem *sysc = (void __iomem *) KSEG1ADDR(MT7621_SYSC_BASE);
 --- a/arch/mips/ralink/Kconfig
 +++ b/arch/mips/ralink/Kconfig
-@@ -63,6 +63,7 @@ choice
+@@ -62,6 +62,7 @@ choice
+ 		select CLKSRC_MIPS_GIC
  		select HAVE_PCI if PCI_MT7621
  		select SOC_BUS
- 		select WEAK_REORDERING_BEYOND_LLSC
 +		select GENERIC_CLOCKEVENTS_BROADCAST
  endchoice