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Date: Fri, 20 Nov 2020 08:58:05 +0900 From: Masami Hiramatsu <mhiramat@...nel.org> To: Steven Rostedt <rostedt@...dmis.org> Cc: Linus Torvalds <torvalds@...ux-foundation.org>, Masami Hiramatsu <mhiramat@...nel.org>, Chen Yu <yu.c.chen@...el.com>, Chen Yu <yu.chen.surf@...il.com>, LKML <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...nel.org>, Jonathan Corbet <corbet@....net>, "open list:DOCUMENTATION" <linux-doc@...r.kernel.org> Subject: Re: [RFC PATCH 0/3] bootconfig: Use hexadecimal ASCII string for size and checksum On Thu, 19 Nov 2020 12:42:34 -0500 Steven Rostedt <rostedt@...dmis.org> wrote: > On Thu, 19 Nov 2020 09:36:47 -0800 > Linus Torvalds <torvalds@...ux-foundation.org> wrote: > > > On Thu, Nov 19, 2020 at 6:31 AM Masami Hiramatsu <mhiramat@...nel.org> wrote: > > > > > > Here is a seires of patches to change the bootconfig footer format > > > to use 8-bytes hexadecimal ASCII string for size and checksum instead > > > of u32. > > > > Ugh., > > > > Just make it little-endian only. > > > > The _worst_ thing to do is to make it some kind of "native-endian", > > because then you have to deal with cross building issues etc. > > > > But using a __le32 type and just doing "le32_to_cpu()" is trivial and > > optimal - not just because everybody relevant is LE anyway, but simply > > because even if you _aren't_ LE, an unconditional byte swap is better > > than a conditional native access. > > And since this isn't used in any fast paths, the byte swapping in the > kernel should be a non-issue. Thanks for the comment! OK, let me renew the series to use le32. -- Masami Hiramatsu <mhiramat@...nel.org>
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