re: LoongArch: Add BPF JIT support

[Colin King (gmail)]

Hi,

Static analysis with clang scan build on arch/loongarch/net/bpf_jit.h 
has detected a potential issue with the following commit:

commit 5dc615520c4dfb358245680f1904bad61116648e
Author: Tiezhu Yang <yangtiezhu@xxxxxxxxxxx>
Date:   Wed Oct 12 16:36:20 2022 +0800

    LoongArch: Add BPF JIT support

This issue is as follows:

arch/loongarch/net/bpf_jit.h:153:23: warning: Logical disjunction always 
evaluates to true: imm_51_31 != 0 || imm_51_31 != 0x1fffff. 
[incorrectLogicOperator]
   if (imm_51_31 != 0 || imm_51_31 != 0x1fffff) {


The statement seems to be always true. I suspect it should it be instead:

   if (imm_51_31 != 0 && imm_51_31 != 0x1fffff) {

regards,

Colin