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 for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Mon, 29 Apr 2024 09:14:06 +0000
From: David Laight <David.Laight@...LAB.COM>
To: 'Jiri Slaby' <jirislaby@...nel.org>, Hugo Villeneuve <hugo@...ovil.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Jon Ringle
	<jringle@...dpoint.com>
CC: "ria.freelander@...il.com" <ria.freelander@...il.com>, Hugo Villeneuve
	<hvilleneuve@...onoff.com>, "stable@...r.kernel.org"
	<stable@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "linux-serial@...r.kernel.org"
	<linux-serial@...r.kernel.org>
Subject: RE: [PATCH] serial: sc16is7xx: fix bug in sc16is7xx_set_baud() when
 using prescaler

From: Jiri Slaby
> Sent: 29 April 2024 07:39
...
> > -	u8 prescaler = 0;
> > +	int prescaler = 1;
> 
> Ugh, why do you move to signed arithmetics?

Any arithmetic would always have been signed.
u8 is promoted to 'signed int' before being used for pretty much anything.

'unsigned int prescaler' might have changed arithmetic to be unsigned.

OTOH you probably don't want a u8 - that might require the compiler
mask an arithmetic result to 8 bits.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ