Hi Ville, Thank you for the patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on next-20190206] [cannot apply to v5.0-rc4] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Ville-Syrjala/drm-i915-Add-pipe-crc-tracepoint/20190207-123120 base: git://anongit.freedesktop.org/drm-intel for-linux-next config: i386-randconfig-x009-201905 (attached as .config) compiler: gcc-8 (Debian 8.2.0-14) 8.2.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): In file included from include/trace/define_trace.h:98, from drivers/gpu/drm/i915/i915_trace.h:951, from drivers/gpu/drm/i915/i915_trace_points.c:13: include/trace/../../drivers/gpu/drm/i915/i915_trace.h: In function '__bpf_trace_intel_pipe_crc': >> include/trace/bpf_probe.h:39:17: error: 'sizeof' on array function parameter 'crcs' will return size of 'const u32 *' {aka 'const unsigned int *'} [-Werror=sizeof-array-argument] UINTTYPE(sizeof(x)) __dst; \ ^ include/trace/bpf_probe.h:32:35: note: in definition of macro 'UINTTYPE' __typeof__(__builtin_choose_expr(size == 1, (u8)1, \ ^~~~ include/trace/bpf_probe.h:43:24: note: in expansion of macro '__CAST_TO_U64' #define __CAST1(a,...) __CAST_TO_U64(a) ^~~~~~~~~~~~~ include/trace/bpf_probe.h:44:42: note: in expansion of macro '__CAST1' #define __CAST2(a,...) __CAST_TO_U64(a), __CAST1(__VA_ARGS__) ^~~~~~~ include/linux/kernel.h:986:24: note: in expansion of macro '__CAST2' #define __CONCAT(a, b) a ## b ^ include/linux/kernel.h:987:27: note: in expansion of macro '__CONCAT' #define CONCATENATE(a, b) __CONCAT(a, b) ^~~~~~~~ include/trace/bpf_probe.h:56:26: note: in expansion of macro 'CONCATENATE' #define CAST_TO_U64(...) CONCATENATE(__CAST, COUNT_ARGS(__VA_ARGS__))(__VA_ARGS__) ^~~~~~~~~~~ include/trace/bpf_probe.h:64:53: note: in expansion of macro 'CAST_TO_U64' CONCATENATE(bpf_trace_run, COUNT_ARGS(args))(prog, CAST_TO_U64(args)); \ ^~~~~~~~~~~ include/trace/trace_events.h:74:2: note: in expansion of macro 'DECLARE_EVENT_CLASS' DECLARE_EVENT_CLASS(name, \ ^~~~~~~~~~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:19:1: note: in expansion of macro 'TRACE_EVENT' TRACE_EVENT(intel_pipe_crc, ^~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:20:50: note: declared here TP_PROTO(struct intel_crtc *crtc, const u32 crcs[5]), ~~~~~~~~~~^~~~~~~ include/trace/bpf_probe.h:61:34: note: in definition of macro 'DECLARE_EVENT_CLASS' __bpf_trace_##call(void *__data, proto) \ ^~~~~ include/trace/trace_events.h:75:9: note: in expansion of macro 'PARAMS' PARAMS(proto), \ ^~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:19:1: note: in expansion of macro 'TRACE_EVENT' TRACE_EVENT(intel_pipe_crc, ^~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:20:6: note: in expansion of macro 'TP_PROTO' TP_PROTO(struct intel_crtc *crtc, const u32 crcs[5]), ^~~~~~~~ >> include/trace/bpf_probe.h:39:17: error: 'sizeof' on array function parameter 'crcs' will return size of 'const u32 *' {aka 'const unsigned int *'} [-Werror=sizeof-array-argument] UINTTYPE(sizeof(x)) __dst; \ ^ include/trace/bpf_probe.h:33:28: note: in definition of macro 'UINTTYPE' __builtin_choose_expr(size == 2, (u16)2, \ ^~~~ include/trace/bpf_probe.h:43:24: note: in expansion of macro '__CAST_TO_U64' #define __CAST1(a,...) __CAST_TO_U64(a) ^~~~~~~~~~~~~ include/trace/bpf_probe.h:44:42: note: in expansion of macro '__CAST1' #define __CAST2(a,...) __CAST_TO_U64(a), __CAST1(__VA_ARGS__) ^~~~~~~ include/linux/kernel.h:986:24: note: in expansion of macro '__CAST2' #define __CONCAT(a, b) a ## b ^ include/linux/kernel.h:987:27: note: in expansion of macro '__CONCAT' #define CONCATENATE(a, b) __CONCAT(a, b) ^~~~~~~~ include/trace/bpf_probe.h:56:26: note: in expansion of macro 'CONCATENATE' #define CAST_TO_U64(...) CONCATENATE(__CAST, COUNT_ARGS(__VA_ARGS__))(__VA_ARGS__) ^~~~~~~~~~~ include/trace/bpf_probe.h:64:53: note: in expansion of macro 'CAST_TO_U64' CONCATENATE(bpf_trace_run, COUNT_ARGS(args))(prog, CAST_TO_U64(args)); \ ^~~~~~~~~~~ include/trace/trace_events.h:74:2: note: in expansion of macro 'DECLARE_EVENT_CLASS' DECLARE_EVENT_CLASS(name, \ ^~~~~~~~~~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:19:1: note: in expansion of macro 'TRACE_EVENT' TRACE_EVENT(intel_pipe_crc, ^~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:20:50: note: declared here TP_PROTO(struct intel_crtc *crtc, const u32 crcs[5]), ~~~~~~~~~~^~~~~~~ include/trace/bpf_probe.h:61:34: note: in definition of macro 'DECLARE_EVENT_CLASS' __bpf_trace_##call(void *__data, proto) \ ^~~~~ include/trace/trace_events.h:75:9: note: in expansion of macro 'PARAMS' PARAMS(proto), \ ^~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:19:1: note: in expansion of macro 'TRACE_EVENT' TRACE_EVENT(intel_pipe_crc, ^~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:20:6: note: in expansion of macro 'TP_PROTO' TP_PROTO(struct intel_crtc *crtc, const u32 crcs[5]), ^~~~~~~~ >> include/trace/bpf_probe.h:39:17: error: 'sizeof' on array function parameter 'crcs' will return size of 'const u32 *' {aka 'const unsigned int *'} [-Werror=sizeof-array-argument] UINTTYPE(sizeof(x)) __dst; \ ^ include/trace/bpf_probe.h:34:28: note: in definition of macro 'UINTTYPE' __builtin_choose_expr(size == 4, (u32)3, \ ^~~~ include/trace/bpf_probe.h:43:24: note: in expansion of macro '__CAST_TO_U64' #define __CAST1(a,...) __CAST_TO_U64(a) ^~~~~~~~~~~~~ include/trace/bpf_probe.h:44:42: note: in expansion of macro '__CAST1' #define __CAST2(a,...) __CAST_TO_U64(a), __CAST1(__VA_ARGS__) ^~~~~~~ include/linux/kernel.h:986:24: note: in expansion of macro '__CAST2' #define __CONCAT(a, b) a ## b ^ include/linux/kernel.h:987:27: note: in expansion of macro '__CONCAT' #define CONCATENATE(a, b) __CONCAT(a, b) ^~~~~~~~ include/trace/bpf_probe.h:56:26: note: in expansion of macro 'CONCATENATE' #define CAST_TO_U64(...) CONCATENATE(__CAST, COUNT_ARGS(__VA_ARGS__))(__VA_ARGS__) ^~~~~~~~~~~ include/trace/bpf_probe.h:64:53: note: in expansion of macro 'CAST_TO_U64' CONCATENATE(bpf_trace_run, COUNT_ARGS(args))(prog, CAST_TO_U64(args)); \ ^~~~~~~~~~~ include/trace/trace_events.h:74:2: note: in expansion of macro 'DECLARE_EVENT_CLASS' DECLARE_EVENT_CLASS(name, \ ^~~~~~~~~~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:19:1: note: in expansion of macro 'TRACE_EVENT' TRACE_EVENT(intel_pipe_crc, ^~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:20:50: note: declared here TP_PROTO(struct intel_crtc *crtc, const u32 crcs[5]), ~~~~~~~~~~^~~~~~~ include/trace/bpf_probe.h:61:34: note: in definition of macro 'DECLARE_EVENT_CLASS' __bpf_trace_##call(void *__data, proto) \ ^~~~~ include/trace/trace_events.h:75:9: note: in expansion of macro 'PARAMS' PARAMS(proto), \ ^~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:19:1: note: in expansion of macro 'TRACE_EVENT' TRACE_EVENT(intel_pipe_crc, ^~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:20:6: note: in expansion of macro 'TP_PROTO' TP_PROTO(struct intel_crtc *crtc, const u32 crcs[5]), ^~~~~~~~ >> include/trace/bpf_probe.h:39:17: error: 'sizeof' on array function parameter 'crcs' will return size of 'const u32 *' {aka 'const unsigned int *'} [-Werror=sizeof-array-argument] UINTTYPE(sizeof(x)) __dst; \ ^ include/trace/bpf_probe.h:35:28: note: in definition of macro 'UINTTYPE' __builtin_choose_expr(size == 8, (u64)4, \ ^~~~ include/trace/bpf_probe.h:43:24: note: in expansion of macro '__CAST_TO_U64' #define __CAST1(a,...) __CAST_TO_U64(a) ^~~~~~~~~~~~~ include/trace/bpf_probe.h:44:42: note: in expansion of macro '__CAST1' #define __CAST2(a,...) __CAST_TO_U64(a), __CAST1(__VA_ARGS__) ^~~~~~~ include/linux/kernel.h:986:24: note: in expansion of macro '__CAST2' #define __CONCAT(a, b) a ## b ^ include/linux/kernel.h:987:27: note: in expansion of macro '__CONCAT' #define CONCATENATE(a, b) __CONCAT(a, b) ^~~~~~~~ include/trace/bpf_probe.h:56:26: note: in expansion of macro 'CONCATENATE' #define CAST_TO_U64(...) CONCATENATE(__CAST, COUNT_ARGS(__VA_ARGS__))(__VA_ARGS__) ^~~~~~~~~~~ include/trace/bpf_probe.h:64:53: note: in expansion of macro 'CAST_TO_U64' CONCATENATE(bpf_trace_run, COUNT_ARGS(args))(prog, CAST_TO_U64(args)); \ ^~~~~~~~~~~ include/trace/trace_events.h:74:2: note: in expansion of macro 'DECLARE_EVENT_CLASS' DECLARE_EVENT_CLASS(name, \ ^~~~~~~~~~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:19:1: note: in expansion of macro 'TRACE_EVENT' TRACE_EVENT(intel_pipe_crc, ^~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:20:50: note: declared here TP_PROTO(struct intel_crtc *crtc, const u32 crcs[5]), ~~~~~~~~~~^~~~~~~ include/trace/bpf_probe.h:61:34: note: in definition of macro 'DECLARE_EVENT_CLASS' __bpf_trace_##call(void *__data, proto) \ ^~~~~ include/trace/trace_events.h:75:9: note: in expansion of macro 'PARAMS' PARAMS(proto), \ ^~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:19:1: note: in expansion of macro 'TRACE_EVENT' TRACE_EVENT(intel_pipe_crc, ^~~~~~~~~~~ include/trace/../../drivers/gpu/drm/i915/i915_trace.h:20:6: note: in expansion of macro 'TP_PROTO' TP_PROTO(struct intel_crtc *crtc, const u32 crcs[5]), ^~~~~~~~ cc1: all warnings being treated as errors vim +39 include/trace/bpf_probe.h c4f6699d Alexei Starovoitov 2018-03-28 29 c4f6699d Alexei Starovoitov 2018-03-28 30 /* cast any integer, pointer, or small struct to u64 */ c4f6699d Alexei Starovoitov 2018-03-28 31 #define UINTTYPE(size) \ c4f6699d Alexei Starovoitov 2018-03-28 32 __typeof__(__builtin_choose_expr(size == 1, (u8)1, \ c4f6699d Alexei Starovoitov 2018-03-28 33 __builtin_choose_expr(size == 2, (u16)2, \ c4f6699d Alexei Starovoitov 2018-03-28 34 __builtin_choose_expr(size == 4, (u32)3, \ c4f6699d Alexei Starovoitov 2018-03-28 35 __builtin_choose_expr(size == 8, (u64)4, \ c4f6699d Alexei Starovoitov 2018-03-28 36 (void)5))))) c4f6699d Alexei Starovoitov 2018-03-28 37 #define __CAST_TO_U64(x) ({ \ c4f6699d Alexei Starovoitov 2018-03-28 38 typeof(x) __src = (x); \ c4f6699d Alexei Starovoitov 2018-03-28 @39 UINTTYPE(sizeof(x)) __dst; \ c4f6699d Alexei Starovoitov 2018-03-28 40 memcpy(&__dst, &__src, sizeof(__dst)); \ c4f6699d Alexei Starovoitov 2018-03-28 41 (u64)__dst; }) c4f6699d Alexei Starovoitov 2018-03-28 42 :::::: The code at line 39 was first introduced by commit :::::: c4f6699dfcb8558d138fe838f741b2c10f416cf9 bpf: introduce BPF_RAW_TRACEPOINT :::::: TO: Alexei Starovoitov <ast@xxxxxxxxxx> :::::: CC: Daniel Borkmann <daniel@xxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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