linux-kernel - Re: [PATCH 1/3] CodingStyle updates

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 29 Sep 2007 10:59:57 -0500
From:	"Scott Preece" <sepreece@...il.com>
To:	"Erez Zadok" <ezk@...sunysb.edu>
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org,
	"Kok, Auke" <auke-jan.h.kok@...el.com>,
	"Kyle Moffett" <mrmacman_g4@....com>,
	"Jan Engelhardt" <jengelh@...putergmbh.de>,
	"Adrian Bunk" <bunk@...nel.org>, roel <12o3l@...cali.nl>
Subject: Re: [PATCH 1/3] CodingStyle updates

A couple of comments interspersed...

On 9/28/07, Erez Zadok <ezk@...sunysb.edu> wrote:
...
>  There are a number of driver model diagnostic macros in <linux/device.h>
>  which you should use to make sure messages are matched to the right device
---

I think this "which" is non-restrictive, so it should have a comma
after it (I realize that's not part of your patch). It's also possible
to read it as restrictive, in which case "that" would be preferable.

---
>  and driver, and are tagged with the right level:  dev_err(), dev_warn(),
> -dev_info(), and so forth.  For messages that aren't associated with a
> -particular device, <linux/kernel.h> defines pr_debug() and pr_info().
> +dev_info(), and so forth.
> +
> +A number of people often like to define their own debugging printf's,
---

"A number of people often like to..." is awkward. How about
"Developers sometimes..." or "Too many people..."

---
> +wrapping printk's in #ifdef's that get turned on only when subsystem

> +               Chapter 19: branch prediction optimizations
> +
> +The kernel includes macros called likely() and unlikely(), which can be used
---

You might say "The kernel provides the macros likely()..."

---
> +as hints to the compiler to optimize branch prediction.  They operate by
...
> +A good example of this is the above kmalloc(GFP_KERNEL) call.  The chances
> +of kmalloc() returning NULL are rather small, because even if it doesn't
> +have memory to return to you at the moment, with GFP_KERNEL/__GFP_WAIT
> +passed, kmalloc() will wait and suspend your thread, while it goes off to
---

The commas after "passed" and "thread" is unnecessary.

---
> +find some free memory (purging caches, flushing buffers, etc.).  In other
> +words, kmalloc() tries very hard to give you the memory you asked for by the
> +time it return.
---

"...by the time it return." should be "...by the time it returns."

---
> +
> +Consider the next, bad example.  Suppose you're developing a file system
> +which performs logically different actions on different types of entities:
---

This "which" is restrictive; it would be preferable to use "that" instead.

---
> +files, directories, symlinks, devices, etc. and you use this code:
> +
...
> +be penalized heavily for going [sic] down the wrong path...  Therefore, you
> +should consider also whether a seemingly-rare condition is indeed rare ALL
---

The hyphen isn't necessary when the first word of the compount
adjective is an adverb ending in "-ly", so, just "seemingly rare"; or
switch to "apparently rare".

---
> +the time.
...


-- 
scott preece
-
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/