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kmod-sched-cake: don't gso fixup on fixed kernels

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Kernels 4.14.73 & 4.9.140 include the gso fixup fix, so cake
doesn't need to do it.  Let's not waste cpu cycles by doing it in
cake which could be really important on cpu constrained devices.

Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
This commit is contained in:
Kevin Darbyshire-Bryant 2018-09-28 09:42:33 +01:00
parent 031c31ccdb
commit b47614f9f1
2 changed files with 23 additions and 1 deletions
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2
package/kernel/kmod-sched-cake/Makefile
View File

@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk
PKG_NAME:=sched-cake
PKG_RELEASE:=1
PKG_RELEASE:=2
PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL:=https://github.com/dtaht/sch_cake.git

22
package/kernel/kmod-sched-cake/patches/100-remove-skb-max-fix-on-fixed-kernels.patch Normal file
View File

@ -0,0 +1,22 @@
--- a/sch_cake.c
+++ b/sch_cake.c
@@ -1799,13 +1799,18 @@ static s32 cake_enqueue(struct sk_buff *
cobalt_set_enqueue_time(segs, now);
get_cobalt_cb(segs)->adjusted_len = cake_overhead(q,
segs);
-
+#if !((LINUX_VERSION_CODE >= KERNEL_VERSION(3, 18, 124) && LINUX_VERSION_CODE < KERNEL_VERSION(3, 19, 0)) || \
+ (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 159) && LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0)) || \
+ (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 9, 130) && LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)) || \
+ (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 73) && LINUX_VERSION_CODE < KERNEL_VERSION(4, 15, 0)) || \
+ (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 18, 11)))
/* For encapsulated packets, the mac_len may not be set
* correctly after GSO split. Fix this by resetting it;
* if skb_gso_segment() already does this correctly,
* this is will just recalculate the current value.
*/
skb_reset_mac_len(skb);
+#endif
flow_queue_add(flow, segs);