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Tue, 12 Jan 2021 05:43:28 -0800 (PST) Date: Tue, 12 Jan 2021 13:43:27 +0000 From: Lee Jones To: linux-kernel@vger.kernel.org, Harry Wentland , Leo Li , Alex Deucher , Christian =?iso-8859-1?Q?K=F6nig?= , David Airlie , Daniel Vetter , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: Re: [PATCH 14/40] drm/amd/display/dc/calcs/dce_calcs: Remove some large variables from the stack Message-ID: <20210112134327.GC3575260@dell> References: <20210111191926.3688443-1-lee.jones@linaro.org> <20210111191926.3688443-15-lee.jones@linaro.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210111191926.3688443-15-lee.jones@linaro.org> X-Mailman-Approved-At: Tue, 12 Jan 2021 14:18:50 +0000 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" T24gTW9uLCAxMSBKYW4gMjAyMSwgTGVlIEpvbmVzIHdyb3RlOgoKPiBGaXhlcyB0aGUgZm9sbG93 aW5nIFc9MSBrZXJuZWwgYnVpbGQgd2FybmluZyhzKToKPiAKPiAgZHJpdmVycy9ncHUvZHJtL2Ft ZC9hbWRncHUvLi4vZGlzcGxheS9kYy9jYWxjcy9kY2VfY2FsY3MuYzogSW4gZnVuY3Rpb24g4oCY YndfY2FsY3NfaW5pdOKAmToKPiAgZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvLi4vZGlzcGxh eS9kYy9jYWxjcy9kY2VfY2FsY3MuYzoyNzI2OjE6IHdhcm5pbmc6IHRoZSBmcmFtZSBzaXplIG9m IDEzMzYgYnl0ZXMgaXMgbGFyZ2VyIHRoYW4gMTAyNCBieXRlcyBbLVdmcmFtZS1sYXJnZXItdGhh bj1dCj4gCj4gQ2M6IEhhcnJ5IFdlbnRsYW5kIDxoYXJyeS53ZW50bGFuZEBhbWQuY29tPgo+IENj OiBMZW8gTGkgPHN1bnBlbmcubGlAYW1kLmNvbT4KPiBDYzogQWxleCBEZXVjaGVyIDxhbGV4YW5k ZXIuZGV1Y2hlckBhbWQuY29tPgo+IENjOiAiQ2hyaXN0aWFuIEvDtm5pZyIgPGNocmlzdGlhbi5r b2VuaWdAYW1kLmNvbT4KPiBDYzogRGF2aWQgQWlybGllIDxhaXJsaWVkQGxpbnV4LmllPgo+IENj OiBEYW5pZWwgVmV0dGVyIDxkYW5pZWxAZmZ3bGwuY2g+Cj4gQ2M6IGFtZC1nZnhAbGlzdHMuZnJl ZWRlc2t0b3Aub3JnCj4gQ2M6IGRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKPiBTaWdu ZWQtb2ZmLWJ5OiBMZWUgSm9uZXMgPGxlZS5qb25lc0BsaW5hcm8ub3JnPgo+IC0tLQo+ICAuLi4v Z3B1L2RybS9hbWQvZGlzcGxheS9kYy9jYWxjcy9kY2VfY2FsY3MuYyAgfCAxMTE1ICsrKysrKysr Ky0tLS0tLS0tCj4gIDEgZmlsZSBjaGFuZ2VkLCA1NjAgaW5zZXJ0aW9ucygrKSwgNTU1IGRlbGV0 aW9ucygtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2Rpc3BsYXkvZGMv Y2FsY3MvZGNlX2NhbGNzLmMgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2Rpc3BsYXkvZGMvY2FsY3Mv ZGNlX2NhbGNzLmMKPiBpbmRleCBhMGM2OWZhZTQwY2VkLi5mNjljMmI4NGQ0MzJiIDEwMDY0NAo+ IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9hbWQvZGlzcGxheS9kYy9jYWxjcy9kY2VfY2FsY3MuYwo+ ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9hbWQvZGlzcGxheS9kYy9jYWxjcy9kY2VfY2FsY3MuYwo+ IEBAIC0yMDM1LDcwNyArMjAzNSw3MTIgQEAgdm9pZCBid19jYWxjc19pbml0KHN0cnVjdCBid19j YWxjc19kY2VpcCAqYndfZGNlaXAsCj4gIAlzdHJ1Y3QgYndfY2FsY3NfdmJpb3MgKmJ3X3ZiaW9z LAo+ICAJc3RydWN0IGh3X2FzaWNfaWQgYXNpY19pZCkKPiAgewo+IC0Jc3RydWN0IGJ3X2NhbGNz X2RjZWlwIGRjZWlwID0geyAwIH07Cj4gLQlzdHJ1Y3QgYndfY2FsY3NfdmJpb3MgdmJpb3MgPSB7 IDAgfTsKPiArCXN0cnVjdCBid19jYWxjc19kY2VpcCAqZGNlaXA7Cj4gKwlzdHJ1Y3QgYndfY2Fs Y3NfdmJpb3MgKnZiaW9zOwo+ICAKPiAgCWVudW0gYndfY2FsY3NfdmVyc2lvbiB2ZXJzaW9uID0g YndfY2FsY3NfdmVyc2lvbl9mcm9tX2FzaWNfaWQoYXNpY19pZCk7Cj4gIAo+IC0JZGNlaXAudmVy c2lvbiA9IHZlcnNpb247Cj4gKwlkY2VpcCA9IGt6YWxsb2Moc2l6ZW9mKGRjZWlwKSwgR0ZQX0tF Uk5FTCk7Cj4gKwl2YmlvcyA9IGt6YWxsb2Moc2l6ZW9mKHZiaW9zKSwgR0ZQX0tFUk5FTCk7CgpQ bGVhc2UgZG9uJ3QgcmV2aWV3L21lcmdlIHRoaXMgeWV0LiAgSSBtaXNzZWQgc29tZSBlcnJvciBj aGVja2luZy4KCi0tIApMZWUgSm9uZXMgW+adjueQvOaWr10KU2VuaW9yIFRlY2huaWNhbCBMZWFk IC0gRGV2ZWxvcGVyIFNlcnZpY2VzCkxpbmFyby5vcmcg4pSCIE9wZW4gc291cmNlIHNvZnR3YXJl IGZvciBBcm0gU29DcwpGb2xsb3cgTGluYXJvOiBGYWNlYm9vayB8IFR3aXR0ZXIgfCBCbG9nCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmFtZC1nZnggbWFp bGluZyBsaXN0CmFtZC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJl ZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vYW1kLWdmeAo= From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 766B4C433DB for ; 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Tue, 12 Jan 2021 05:43:29 -0800 (PST) Received: from dell ([91.110.221.229]) by smtp.gmail.com with ESMTPSA id p15sm5033694wrt.15.2021.01.12.05.43.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Jan 2021 05:43:28 -0800 (PST) Date: Tue, 12 Jan 2021 13:43:27 +0000 From: Lee Jones To: linux-kernel@vger.kernel.org, Harry Wentland , Leo Li , Alex Deucher , Christian =?iso-8859-1?Q?K=F6nig?= , David Airlie , Daniel Vetter , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: Re: [PATCH 14/40] drm/amd/display/dc/calcs/dce_calcs: Remove some large variables from the stack Message-ID: <20210112134327.GC3575260@dell> References: <20210111191926.3688443-1-lee.jones@linaro.org> <20210111191926.3688443-15-lee.jones@linaro.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210111191926.3688443-15-lee.jones@linaro.org> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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Tue, 12 Jan 2021 05:43:29 -0800 (PST) Received: from dell ([91.110.221.229]) by smtp.gmail.com with ESMTPSA id p15sm5033694wrt.15.2021.01.12.05.43.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Jan 2021 05:43:28 -0800 (PST) Date: Tue, 12 Jan 2021 13:43:27 +0000 From: Lee Jones To: linux-kernel@vger.kernel.org, Harry Wentland , Leo Li , Alex Deucher , Christian =?iso-8859-1?Q?K=F6nig?= , David Airlie , Daniel Vetter , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: Re: [PATCH 14/40] drm/amd/display/dc/calcs/dce_calcs: Remove some large variables from the stack Message-ID: <20210112134327.GC3575260@dell> References: <20210111191926.3688443-1-lee.jones@linaro.org> <20210111191926.3688443-15-lee.jones@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20210111191926.3688443-15-lee.jones@linaro.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 11 Jan 2021, Lee Jones wrote: > Fixes the following W=1 kernel build warning(s): > > drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c: In function ‘bw_calcs_init’: > drivers/gpu/drm/amd/amdgpu/../display/dc/calcs/dce_calcs.c:2726:1: warning: the frame size of 1336 bytes is larger than 1024 bytes [-Wframe-larger-than=] > > Cc: Harry Wentland > Cc: Leo Li > Cc: Alex Deucher > Cc: "Christian König" > Cc: David Airlie > Cc: Daniel Vetter > Cc: amd-gfx@lists.freedesktop.org > Cc: dri-devel@lists.freedesktop.org > Signed-off-by: Lee Jones > --- > .../gpu/drm/amd/display/dc/calcs/dce_calcs.c | 1115 +++++++++-------- > 1 file changed, 560 insertions(+), 555 deletions(-) > > diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c > index a0c69fae40ced..f69c2b84d432b 100644 > --- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c > +++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c > @@ -2035,707 +2035,712 @@ void bw_calcs_init(struct bw_calcs_dceip *bw_dceip, > struct bw_calcs_vbios *bw_vbios, > struct hw_asic_id asic_id) > { > - struct bw_calcs_dceip dceip = { 0 }; > - struct bw_calcs_vbios vbios = { 0 }; > + struct bw_calcs_dceip *dceip; > + struct bw_calcs_vbios *vbios; > > enum bw_calcs_version version = bw_calcs_version_from_asic_id(asic_id); > > - dceip.version = version; > + dceip = kzalloc(sizeof(dceip), GFP_KERNEL); > + vbios = kzalloc(sizeof(vbios), GFP_KERNEL); Please don't review/merge this yet. I missed some error checking. -- Lee Jones [李琼斯] Senior Technical Lead - Developer Services Linaro.org │ Open source software for Arm SoCs Follow Linaro: Facebook | Twitter | Blog