On Fri, Jan 28, 2022 at 10:57:35AM -0700, Shuah Khan wrote: > On 1/28/22 10:38 AM, Sean Young wrote: > > On Fri, Jan 28, 2022 at 10:27:52AM -0700, Shuah Khan wrote: > > > On 1/28/22 9:49 AM, Alexei Starovoitov wrote: > > > > On Fri, Jan 28, 2022 at 1:32 AM Sean Young <sean@xxxxxxxx> wrote: > > > > > > > > > > > > > > ir_loopback.c: In function ‘main’: > > > > > > ir_loopback.c:147:20: error: ‘RC_PROTO_RCMM32’ undeclared (first use in this function); did you mean ‘RC_PROTO_RC6_MCE’? > > > > > > if (rc_proto == RC_PROTO_RCMM32 && > > > > > > ^~~~~~~~~~~~~~~ > > > > > > RC_PROTO_RC6_MCE > > > > > > > > > > So this commit removes the copy of lirc.h from tools/include/uapi/linux/lirc.h, > > > > > so now the test uses /usr/include/linux/lirc.h. It appears that this file > > > > > does not have RC_PROTO_RCMM32 defined on this system, which means it is a > > > > > kernel header from v5.1 or earlier (this was added in commit > > > > > 721074b03411327e7bf41555d4cc7c18f49313f7). > > > > > > > > > > It looks like this machine is redhat 8.3, which ships with kernel 4.18. > > > > > > > > > > I guess my change was far too optimistic; I had no ideal enterprise kernels > > > > > were so ancient. > > > Hi Shuah, > > > > I was thinking along the same lines, however RC_PROTO_RCMM32 is an enum > > value so a pre-processor #ifdef is not going to work. At the moment I haven't > > had any bright ideas other than doing a `#define RC_PROTO_RCMM32 26` at the > > top of the file. > > > > One more idea. Let's see if this works. Check for RC_PROTO_MAX if it existed > before this commit that RC_PROTO_RCMM32, you could define RC_PROTO_RCMM32 > conditionally in the test scope. If not let's go woth your plan of defining > it at the top with some info. Good idea, this works! patch in another reply in this thread. Sorry about the mess, thanks for the suggestions. Sean