all: remove redundant type conversion

Change-Id: I37550b85567abd2f5b422e742fcea9b26fd80f2b
GitHub-Last-Rev: b2e8403
GitHub-Pull-Request: #148
Reviewed-on: https://go-review.googlesource.com/c/net/+/428937
Reviewed-by: Damien Neil <[email protected]>
Run-TryBot: Damien Neil <[email protected]>
Reviewed-by: Michael Knyszek <[email protected]>
TryBot-Result: Gopher Robot <[email protected]>

Author: cuishuang

bpf/vm_instructions.go

@@ -94,7 +94,7 @@ func jumpIfCommon(cond JumpTest, skipTrue, skipFalse uint8, regA uint32, value u
 
 func loadAbsolute(ins LoadAbsolute, in []byte) (uint32, bool) {
 	offset := int(ins.Off)
-	size := int(ins.Size)
+	size := ins.Size
 
 	return loadCommon(in, offset, size)
 }
@@ -121,7 +121,7 @@ func loadExtension(ins LoadExtension, in []byte) uint32 {
 
 func loadIndirect(ins LoadIndirect, in []byte, regX uint32) (uint32, bool) {
 	offset := int(ins.Off) + int(regX)
-	size := int(ins.Size)
+	size := ins.Size
 
 	return loadCommon(in, offset, size)
 }

context/go17.go

@@ -32,7 +32,7 @@ var DeadlineExceeded = context.DeadlineExceeded
 // call cancel as soon as the operations running in this Context complete.
 func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
 	ctx, f := context.WithCancel(parent)
-	return ctx, CancelFunc(f)
+	return ctx, f
 }
 
 // WithDeadline returns a copy of the parent context with the deadline adjusted
@@ -46,7 +46,7 @@ func WithCancel(parent Context) (ctx Context, cancel CancelFunc) {
 // call cancel as soon as the operations running in this Context complete.
 func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) {
 	ctx, f := context.WithDeadline(parent, deadline)
-	return ctx, CancelFunc(f)
+	return ctx, f
 }
 
 // WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)).