From: Lee Jones <lee.jones@linaro.org>
To: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: Sergei Shtylyov <sergei.shtylyov@gmail.com>,
linux-kernel@vger.kernel.org,
Mathias Nyman <mathias.nyman@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-usb@vger.kernel.org
Subject: Re: [PATCH 21/24] usb: host: xhci: Move array of structs from the stack onto the heap
Date: Tue, 1 Jun 2021 10:25:13 +0100 [thread overview]
Message-ID: <20210601092513.GC543307@dell> (raw)
In-Reply-To: <23bb1fc5-acff-74a6-c67a-11b0e0d85011@linux.intel.com>
On Thu, 27 May 2021, Mathias Nyman wrote:
> On 26.5.2021 18.28, Lee Jones wrote:
> > On Wed, 26 May 2021, Sergei Shtylyov wrote:
> >
> >> On 5/26/21 5:44 PM, Lee Jones wrote:
> >>
> >> [...]
> >>>>> Fixes the following W=1 kernel build warning(s):
> >>>>>
> >>>>> drivers/usb/host/xhci.c: In function ‘xhci_reserve_bandwidth’:
> >>>>> drivers/usb/host/xhci.c:2859:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=]
> >>>>>
> >>>>> Cc: Mathias Nyman <mathias.nyman@intel.com>
> >>>>> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> >>>>> Cc: linux-usb@vger.kernel.org
> >>>>> Signed-off-by: Lee Jones <lee.jones@linaro.org>
> >>>>> ---
> >>>>> drivers/usb/host/xhci.c | 8 +++++++-
> >>>>> 1 file changed, 7 insertions(+), 1 deletion(-)
> >>>>>
> >>>>> diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
> >>>>> index ac2a7d4288883..40ce4b4eb12ad 100644
> >>>>> --- a/drivers/usb/host/xhci.c
> >>>>> +++ b/drivers/usb/host/xhci.c
> >>>> [...]
> >>>>> @@ -2788,6 +2788,10 @@ static int xhci_reserve_bandwidth(struct xhci_hcd *xhci,
> >>>>> return -ENOMEM;
> >>>>> }
> >>>>>
> >>>>> + ep_bw_info = kzalloc(sizeof(*ep_bw_info) * 31, GFP_KERNEL);
>
> GFP_KERNEL might not be suitable for all cases.
>
> xhci_reserve_bandwidth() is called from xhci_configure_endpoint(), which again
> is called from a lot of places.
> For example from xhci_update_hub_device() which can be called with GFP_NOIO mem_flags.
What do you suggest as an alternative?
--
Lee Jones [李琼斯]
Senior Technical Lead - Developer Services
Linaro.org │ Open source software for Arm SoCs
Follow Linaro: Facebook | Twitter | Blog
next prev parent reply other threads:[~2021-06-01 9:25 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-26 13:00 [PATCH 00/24] Rid W=1 warnings from USB Lee Jones
2021-05-26 13:00 ` [PATCH 01/24] usb: cdns3: core: Fix a couple of incorrectly documented function names Lee Jones
2021-05-26 13:00 ` [PATCH 02/24] usb: dwc2: platform: Provide function name for 'dwc2_check_core_version()' Lee Jones
2021-05-26 15:10 ` Minas Harutyunyan
2021-05-26 13:00 ` [PATCH 03/24] usb: common: ulpi: Add leading underscores for function name '__ulpi_register_driver()' Lee Jones
2021-05-26 14:35 ` Heikki Krogerus
2021-05-26 13:00 ` [PATCH 04/24] usb: cdns3: cdns3-plat: Fix incorrect naming of function 'cdns3_plat_remove()' Lee Jones
2021-05-26 13:00 ` [PATCH 05/24] usb: dwc2: params: Fix naming of 'dwc2_get_hwparams()' in the docs Lee Jones
2021-05-26 15:10 ` Minas Harutyunyan
2021-05-26 13:00 ` [PATCH 06/24] usb: isp1760: isp1760-udc: Provide missing description for 'udc' param Lee Jones
2021-05-26 14:11 ` Rui Miguel Silva
2021-05-26 13:00 ` [PATCH 07/24] usb: cdns3: cdns3-gadget: Fix a bunch of kernel-doc related formatting issues Lee Jones
2021-05-26 13:00 ` [PATCH 08/24] usb: cdns3: cdns3-ti: File headers are not good candidates for kernel-doc Lee Jones
2021-05-26 13:00 ` [PATCH 09/24] usb: cdns3: cdns3-ep0: Fix a few kernel-doc formatting issues Lee Jones
2021-05-26 13:00 ` [PATCH 10/24] usb: cdns3: cdns3-imx: File headers are not good candidates for kernel-doc Lee Jones
2021-05-26 13:00 ` [PATCH 11/24] usb: dwc2: hcd_queue: Fix typeo in function name 'dwc2_hs_pmap_unschedule()' Lee Jones
2021-05-26 15:11 ` Minas Harutyunyan
2021-05-26 13:00 ` [PATCH 12/24] usb: dwc2: pci: Fix possible copy/paste issue Lee Jones
2021-05-26 15:11 ` Minas Harutyunyan
2021-05-26 13:00 ` [PATCH 13/24] usb: chipidea: core: Fix incorrectly documented function 'ci_usb_phy_exit()' Lee Jones
2021-05-26 14:24 ` Sergei Shtylyov
2021-05-26 14:42 ` Lee Jones
2021-05-26 13:00 ` [PATCH 14/24] usb: chipidea: otg: Fix formatting and missing documentation issues Lee Jones
2021-05-26 13:00 ` [PATCH 15/24] usb: dwc2: gadget: Repair 'dwc2_hsotg_core_init_disconnected()'s documentation Lee Jones
2021-05-26 15:11 ` Minas Harutyunyan
2021-05-26 13:00 ` [PATCH 16/24] usb: chipidea: udc: Fix incorrectly documented function 'hw_port_is_high_speed()' Lee Jones
2021-05-26 13:00 ` [PATCH 17/24] usb: host: xhci: Remove unused variable 'len' Lee Jones
2021-05-27 7:26 ` Greg Kroah-Hartman
2021-05-27 8:16 ` Lee Jones
2021-05-27 9:23 ` Mathias Nyman
2021-05-27 9:50 ` Greg Kroah-Hartman
2021-05-27 11:06 ` Lee Jones
2021-05-26 13:00 ` [PATCH 18/24] usb: gadget: udc: pxa27x_udc: Fix documentation for 'pxa27x_udc_start()' Lee Jones
2021-05-26 13:18 ` Daniel Mack
2021-05-26 13:00 ` [PATCH 19/24] usb: gadget: udc: udc-xilinx: Place correct function names into the headers Lee Jones
2021-05-26 13:00 ` [PATCH 20/24] usb: cdns3: cdns3-gadget: Provide correct function naming for '__cdns3_gadget_ep_queue()' Lee Jones
2021-05-26 13:00 ` [PATCH 21/24] usb: host: xhci: Move array of structs from the stack onto the heap Lee Jones
2021-05-26 14:21 ` Sergei Shtylyov
2021-05-26 14:44 ` Lee Jones
2021-05-26 14:59 ` Sergei Shtylyov
2021-05-26 15:28 ` Lee Jones
2021-05-27 11:36 ` Mathias Nyman
2021-06-01 9:25 ` Lee Jones [this message]
2021-06-22 10:47 ` Lee Jones
2021-06-22 11:32 ` Mathias Nyman
2021-05-26 13:00 ` [PATCH 22/24] usb: host: xhci: Document xhci_get_endpoint_index()'s 'desc' param Lee Jones
2021-05-26 13:00 ` [PATCH 23/24] usb: cdns3: cdnsp-gadget: Provide function name for 'cdnsp_find_next_ext_cap()' Lee Jones
2021-05-26 13:00 ` [PATCH 24/24] usb: typec: ucsi: Fix copy/paste issue for 'ucsi_set_drvdata()' Lee Jones
2021-05-26 14:34 ` Heikki Krogerus
2021-05-27 1:46 ` [PATCH 00/24] Rid W=1 warnings from USB Peter Chen
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=20210601092513.GC543307@dell \
--to=lee.jones@linaro.org \
--cc=gregkh@linuxfoundation.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=mathias.nyman@intel.com \
--cc=mathias.nyman@linux.intel.com \
--cc=sergei.shtylyov@gmail.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).