Re: [PATCH v4 1/2] powerpc64/bpf: fix tail calls for PCREL addressing

2024-05-08 Thread Michael Ellerman
On Thu, 02 May 2024 23:02:04 +0530, Hari Bathini wrote: > With PCREL addressing, there is no kernel TOC. So, it is not setup in > prologue when PCREL addressing is used. But the number of instructions > to skip on a tail call was not adjusted accordingly. That resulted in > not so obvious failures

Re: [PATCH v4 1/2] powerpc64/bpf: fix tail calls for PCREL addressing

2024-05-07 Thread Naveen N Rao
On Thu, May 02, 2024 at 11:02:04PM GMT, Hari Bathini wrote: > With PCREL addressing, there is no kernel TOC. So, it is not setup in > prologue when PCREL addressing is used. But the number of instructions > to skip on a tail call was not adjusted accordingly. That resulted in > not so obvious failu