lkml.org 
[lkml]   [2006]   [Aug]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 3/3] add generic udelay(), mdelay() and ssleep()
    On Tue, Aug 22, 2006 at 04:22:43PM +0200, Denis Vlasenko wrote:
    > On Tuesday 22 August 2006 15:51, Denis Vlasenko wrote:
    > > > A few arch files won't see the definition of udelay()
    > > > in asm/delay.h anymore. Prevent that from biting us later.
    > >
    > > We are going to kill MAX_UDELAY_MS, so replace it
    > > in common code with 1. Also fix a buglet on the way:
    > > mpc83xx_spi->nsecs > MAX_UDELAY_MS * 1000
    > > was comparing nanoseconds to microseconds.
    >
    > This patch does the following:
    > * make it so than asm/delay.h does not define udelay(),
    > only __udelay(), to be used in generic udelay()
    > * add generic udelay() which calls __udelay() repeatedly,
    > as needed. Protect against overflow in udelay() argument.
    > * similarly for mdelay() and ssleep()
    > * __const_udelay for all arches is removed or renamed to
    > __const_delay (it did not do microsecond delays anyway)
    > if still used by arch ndelay() function/macro
    > * remove EXPORT_SYMBOL(__udelay). It is not used in modules
    > anymore
    > * remove MAX_UDELAY_MS
    >
    > We specifically do not touch ndelay() in thess patches.
    > It is not changed.

    Please keep a "const" version in ARM. Thanks.

    --
    Russell King
    Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
    maintainer of: 2.6 Serial core
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2006-08-22 18:59    [W:0.021 / U:82.560 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site