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Date: Tue, 2 Aug 2011 17:30:31 +0200 From: Alexey ORISHKO <alexey.orishko@...ricsson.com> To: Joss Boyer <jwboyer@...hat.com>, Oliver Neukum <oliver@...kum.org> Cc: "gregkh@...e.de" <gregkh@...e.de>, "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org> Subject: RE: [PATCH v3] usbnet/cdc_ncm: Don't use stack variables for DMA > -----Original Message----- > From: Joss Boyer [mailto:jwboyer@...hat.com] > Sent: Tuesday, August 02, 2011 4:48 PM > To: Oliver Neukum; Alexey ORISHKO > Cc: gregkh@...e.de; linux-usb@...r.kernel.org; linux-kernel@...r.kernel.org > Subject: [PATCH v3] usbnet/cdc_ncm: Don't use stack variables for DMA > > From 1717b6b8b1de95ed4ca53b74d2ccb563fae9b898 Mon Sep 17 00:00:00 2001 > From: Josh Boyer <jwboyer@...hat.com> > Date: Tue, 2 Aug 2011 08:09:56 -0400 > Subject: [PATCH] usbnet/cdc_ncm: Don't use stack variables for DMA buffers > > The cdc_ncm driver still has a few places where stack variables are passed > to the cdc_ncm_do_request function. This triggers a stack trace in > lib/dma-debug.c if the CONFIG_DEBUG_DMA_API option is set. > > Adjust these calls to pass parameters that have been allocated with kzalloc. > > Signed-off-by: Josh Boyer <jwboyer@...hat.com> > --- Tested with hardware on Ubuntu 11.04 64-bit (no CONFIG_DEBUG_DMA_API flag) /alexey -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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