* [PATCH] cfg80211: Remove unnecessary ksize() call
@ 2009-04-25 20:28 Michael Buesch
2009-04-26 8:30 ` Johannes Berg
0 siblings, 1 reply; 2+ messages in thread
From: Michael Buesch @ 2009-04-25 20:28 UTC (permalink / raw)
To: Johannes Berg; +Cc: linville, linux-wireless
This removes an unnecessary ksize() call. krealloc() will do this
test internally and won't perform any allocation if the space is
already sufficient to hold the data.
So remove the redundant check.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
---
net/wireless/scan.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
--- wireless-testing.orig/net/wireless/scan.c
+++ wireless-testing/net/wireless/scan.c
@@ -384,11 +384,9 @@ cfg80211_bss_update(struct cfg80211_regi
} else {
u8 *ies = found->pub.information_elements;
- if (found->ies_allocated) {
- if (ksize(ies) < ielen)
- ies = krealloc(ies, ielen,
- GFP_ATOMIC);
- } else
+ if (found->ies_allocated)
+ ies = krealloc(ies, ielen, GFP_ATOMIC);
+ else
ies = kmalloc(ielen, GFP_ATOMIC);
if (ies) {
--
Greetings, Michael.
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [PATCH] cfg80211: Remove unnecessary ksize() call
2009-04-25 20:28 [PATCH] cfg80211: Remove unnecessary ksize() call Michael Buesch
@ 2009-04-26 8:30 ` Johannes Berg
0 siblings, 0 replies; 2+ messages in thread
From: Johannes Berg @ 2009-04-26 8:30 UTC (permalink / raw)
To: Michael Buesch; +Cc: linville, linux-wireless
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On Sat, 2009-04-25 at 22:28 +0200, Michael Buesch wrote:
> This removes an unnecessary ksize() call. krealloc() will do this
> test internally and won't perform any allocation if the space is
> already sufficient to hold the data.
> So remove the redundant check.
>
> Signed-off-by: Michael Buesch <mb@bu3sch.de>
Good catch, thanks.
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
johannes
> ---
> net/wireless/scan.c | 8 +++-----
> 1 file changed, 3 insertions(+), 5 deletions(-)
>
> --- wireless-testing.orig/net/wireless/scan.c
> +++ wireless-testing/net/wireless/scan.c
> @@ -384,11 +384,9 @@ cfg80211_bss_update(struct cfg80211_regi
> } else {
> u8 *ies = found->pub.information_elements;
>
> - if (found->ies_allocated) {
> - if (ksize(ies) < ielen)
> - ies = krealloc(ies, ielen,
> - GFP_ATOMIC);
> - } else
> + if (found->ies_allocated)
> + ies = krealloc(ies, ielen, GFP_ATOMIC);
> + else
> ies = kmalloc(ielen, GFP_ATOMIC);
>
> if (ies) {
>
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^ permalink raw reply [flat|nested] 2+ messages in thread
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2009-04-26 8:30 ` Johannes Berg
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