Re: [v8, bpf-next, 4/9] net/wireless/iwlwifi: fix iwlwifi_dev_ucode_error tracepoint

On Wed, May 23, 2018 at 01:03:08PM +0200, Johannes Berg wrote: > On Wed, 2018-03-28 at 12:05 -0700, Alexei Starovoitov wrote: > > fix iwlwifi_dev_ucode_error tracepoint to pass pointer to a table > > instead of all 17 arguments by value. > > dvm/main.c and mvm

Re: [PATCH v4 00/10] prevent bounds-check bypass via speculative execution

On Sat, Jan 20, 2018 at 8:56 AM, Alexei Starovoitov <alexei.starovoi...@gmail.com> wrote: > On Fri, Jan 19, 2018 at 10:58:44PM -0800, Dan Williams wrote: >> On Thu, Jan 18, 2018 at 4:01 PM, Dan Williams <dan.j.willi...@intel.com> >> wrote: >> > Changes since

Re: [PATCH v4 00/10] prevent bounds-check bypass via speculative execution

On Fri, Jan 19, 2018 at 10:58:44PM -0800, Dan Williams wrote: > On Thu, Jan 18, 2018 at 4:01 PM, Dan Williams > wrote: > > Changes since v3 [1] > > * Drop 'ifence_array_ptr' and associated compile-time + run-time > > switching and just use the masking approach all the

Re: using verifier to ensure a BPF program uses certain metadata?

On Wed, Oct 18, 2017 at 08:56:31AM +0200, Johannes Berg wrote: > > > Now, I realize that people could trivially just work around this in > > > their program if they wanted, but I think most will take the > > > reminder > > > and just implement > > > > > > if (ctx->is_data_ethernet) > > >

Re: using verifier to ensure a BPF program uses certain metadata?

On Mon, Oct 16, 2017 at 09:38:44AM +0200, Johannes Berg wrote: > Hi, > > As we discussed in April already (it's really been that long...), I'd > wanted to allow using BPF to filter wireless monitor frames, to enable > new use cases and higher performance in monitoring. I have some code, > at > >

Re: [RFC 1/3] bpf/wireless: add wifimon program type

On Wed, Apr 12, 2017 at 05:30:40PM +0200, Johannes Berg wrote: > On Wed, 2017-04-12 at 11:19 -0400, David Miller wrote: > > > > > Instead it may make more sense to just have a "wifi_info(skb, > > info)" > > > function you can call, e.g. with a structure that has various > > fields > > > and flags