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Date: Tue, 27 Oct 2015 11:42:15 +0800 From: "Wangnan (F)" <wangnan0@...wei.com> To: Alexei Starovoitov <alexei.starovoitov@...il.com> CC: <acme@...nel.org>, <ast@...nel.org>, <linux-kernel@...r.kernel.org>, <pi3orama@....com>, <lizefan@...wei.com>, Arnaldo Carvalho de Melo <acme@...hat.com>, "David S. Miller" <davem@...emloft.net>, Wu Fengguang <fengguang.wu@...el.com> Subject: Re: [net-next PATCHv2] bpf: Output error message to logbuf when loading failure On 2015/10/27 11:26, Alexei Starovoitov wrote: > On Mon, Oct 26, 2015 at 07:13:08AM +0000, Wang Nan wrote: >> Many reasons can make bpf_prog_load() return EINVAL. This patch utilizes >> logbuf to deliver the actual reason of the failure. >> >> Without this patch, it is very easy for user to pass an object with >> "version" section not match the kernel version code, and the problem >> is hard to determine from return code (EINVAL). >> >> Signed-off-by: Wang Nan <wangnan0@...wei.com> >> Cc: Alexei Starovoitov <ast@...nel.org> >> Cc: Arnaldo Carvalho de Melo <acme@...hat.com> >> Cc: David S. Miller <davem@...emloft.net> >> Cc: Wu Fengguang <fengguang.wu@...el.com> > NACK > for both implementation and design. OK. Let perf to report error message. Thank you. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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