All of lore.kernel.org
 help / color / mirror / Atom feed
From: Kalle Valo <kvalo@codeaurora.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	kasan-dev@googlegroups.com, Dmitry Vyukov <dvyukov@google.com>,
	Alexander Potapenko <glider@google.com>,
	Andrey Ryabinin <aryabinin@virtuozzo.com>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Arend van Spriel <arend.vanspriel@broadcom.com>,
	Franky Lin <franky.lin@broadcom.com>,
	Hante Meuleman <hante.meuleman@broadcom.com>,
	linux-wireless@vger.kernel.org,
	brcm80211-dev-list.pdl@broadcom.com
Subject: Re: [PATCH v2 08/11] brcmsmac: make some local variables 'static const' to reduce stack size
Date: Thu, 15 Jun 2017 17:56:27 +0300	[thread overview]
Message-ID: <87mv99e1us.fsf@codeaurora.org> (raw)
In-Reply-To: <20170614211556.2062728-9-arnd@arndb.de> (Arnd Bergmann's message of "Wed, 14 Jun 2017 23:15:43 +0200")

Arnd Bergmann <arnd@arndb.de> writes:

> With KASAN and a couple of other patches applied, this driver is one
> of the few remaining ones that actually use more than 2048 bytes of
> kernel stack:
>
> broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function 'wlc_phy_workarounds_nphy_gainctrl':
> broadcom/brcm80211/brcmsmac/phy/phy_n.c:16065:1: warning: the frame size of 3264 bytes is larger than 2048 bytes [-Wframe-larger-than=]
> broadcom/brcm80211/brcmsmac/phy/phy_n.c: In function 'wlc_phy_workarounds_nphy':
> broadcom/brcm80211/brcmsmac/phy/phy_n.c:17138:1: warning: the frame size of 2864 bytes is larger than 2048 bytes [-Wframe-larger-than=]
>
> Here, I'm reducing the stack size by marking as many local variables as
> 'static const' as I can without changing the actual code.
>
> Acked-by: Arend van Spriel <arend.vanspriel@broadcom.com>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

I found the cover letter from lkml and apparently the plan is that
Andrew will pick these three brcmsmac patches, so I'll drop them in
wireless patchwork.

-- 
Kalle Valo

  reply	other threads:[~2017-06-15 14:56 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-14 21:15 [PATCH v2 00/11] bring back stack frame warning with KASAN Arnd Bergmann
2017-06-14 21:15 ` [PATCH v2 01/11] compiler: introduce noinline_if_stackbloat annotation Arnd Bergmann
2017-06-14 21:15 ` [PATCH v2 02/11] netlink: mark nla_put_{u8,u16,u32} noinline_if_stackbloat Arnd Bergmann
2017-06-14 21:15 ` [PATCH v2 03/11] tty: kbd: reduce stack size with KASAN Arnd Bergmann
2017-06-14 21:28   ` Samuel Thibault
2017-06-14 21:56     ` Arnd Bergmann
2017-06-14 22:16       ` Samuel Thibault
2017-06-15  4:52   ` Greg Kroah-Hartman
2017-06-15  4:53     ` Greg Kroah-Hartman
2017-06-16 12:01       ` Arnd Bergmann
2017-06-16 13:02         ` Greg Kroah-Hartman
2017-06-16 15:41           ` Arnd Bergmann
2017-06-16 15:58             ` Samuel Thibault
2017-06-16 17:29               ` Dmitry Torokhov
2017-06-16 20:56                 ` Arnd Bergmann
2017-06-16 21:07                   ` Dmitry Torokhov
2017-06-16 17:14             ` Andrey Ryabinin
2017-06-14 21:15 ` [PATCH v2 04/11] rocker: mark rocker_tlv_put_* functions as noinline_if_stackbloat Arnd Bergmann
2017-06-14 21:15 ` [PATCH v2 05/11] mtd: cfi: reduce stack size with KASAN Arnd Bergmann
2017-06-14 21:15   ` Arnd Bergmann
2017-08-04  7:42   ` Boris Brezillon
2017-08-04  9:09     ` Arnd Bergmann
2017-08-04 10:56       ` Boris Brezillon
2017-08-04 10:57   ` Boris Brezillon
2017-06-14 21:15 ` [PATCH v2 06/11] dvb-frontends: reduce stack size in i2c access Arnd Bergmann
2017-06-24 19:49   ` Mauro Carvalho Chehab
2017-06-14 21:15 ` [PATCH v2 07/11] r820t: mark register functions as noinline_if_stackbloat Arnd Bergmann
2017-06-14 21:15 ` [PATCH v2 08/11] brcmsmac: make some local variables 'static const' to reduce stack size Arnd Bergmann
2017-06-15 14:56   ` Kalle Valo [this message]
2017-06-14 21:15 ` [PATCH v2 09/11] brcmsmac: split up wlc_phy_workarounds_nphy Arnd Bergmann
2017-06-14 21:15 ` [PATCH v2 10/11] brcmsmac: reindent split functions Arnd Bergmann
2017-06-14 21:15 ` [PATCH v2 11/11] kasan: rework Kconfig settings Arnd Bergmann
2017-06-15  7:02   ` Dmitry Vyukov
2017-06-16 11:42     ` Arnd Bergmann
2017-06-16 11:44       ` Dmitry Vyukov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87mv99e1us.fsf@codeaurora.org \
    --to=kvalo@codeaurora.org \
    --cc=akpm@linux-foundation.org \
    --cc=arend.vanspriel@broadcom.com \
    --cc=arnd@arndb.de \
    --cc=aryabinin@virtuozzo.com \
    --cc=brcm80211-dev-list.pdl@broadcom.com \
    --cc=dvyukov@google.com \
    --cc=franky.lin@broadcom.com \
    --cc=glider@google.com \
    --cc=hante.meuleman@broadcom.com \
    --cc=kasan-dev@googlegroups.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=netdev@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.