From mboxrd@z Thu Jan 1 00:00:00 1970 From: m.szyprowski@samsung.com (Marek Szyprowski) Date: Wed, 04 Jul 2012 08:52:01 +0200 Subject: [PATCH v4] mm: cma: add a simple kernel module as the helper to test CMA In-Reply-To: References: <1331120259-30780-1-git-send-email-Barry.Song@csr.com> <03e601cd58ec$5b8177b0$12846710$%szyprowski@samsung.com> Message-ID: <000301cd59b1$87094eb0$951bec10$%szyprowski@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hello, On Tuesday, July 03, 2012 2:54 PM Michal Nazarewicz wrote: > > 2012/7/3 Marek Szyprowski : > >> IMHO the right place for such code is in drivers/misc instead of tools/cma. > >> > >> This patch contains a kernel module source code so it should be put with other kernel > >> modules. tools/ directory is aimed to contain user space code useful for developing and > >> testing Linux kernel. > > On Tue, 03 Jul 2012 09:39:34 +0200, Barry Song <21cnbao@gmail.com> wrote: > > this one is aiming to test CMA, it should be in tools/ as Michal > > Nazarewicz and i have talked about that. > > it is not a real driver at all. > > Yeah, I feel like it's better placed in tools/ not to pollute other directories with > drivers that are of no use to regular users. I don't have strong feelings about it > though, so I'm fine either way. Other test devices/drivers are in drivers directory (drivers/usb/misc/usbtest.c for example), I don't see any good reason for polluting tools/ directory with kernel code. IMHO the right person to decide if it makes sense to have such drivers in drivers/mics/ or tools/cma/ is Greg KH. Barry, please resend it and ask Greg for the decision. Best regards -- Marek Szyprowski Samsung Poland R&D Center