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Mon, 29 Jun 2020 07:01:39 -0700 (PDT) Date: Mon, 29 Jun 2020 15:01:37 +0100 From: Lee Jones To: Johan Hovold Subject: Re: [PATCH 4/5] mfd: sprd-sc27xx-spi: Fix divide by zero when allocating register offset/mask Message-ID: <20200629140137.GK177734@dell> References: <20200629123215.1014747-1-lee.jones@linaro.org> <20200629123215.1014747-5-lee.jones@linaro.org> <20200629130644.GU3334@localhost> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200629130644.GU3334@localhost> X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Baolin Wang , Orson Zhai , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Chunyan Zhang Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gTW9uLCAyOSBKdW4gMjAyMCwgSm9oYW4gSG92b2xkIHdyb3RlOgoKPiBPbiBNb24sIEp1biAy OSwgMjAyMCBhdCAwMTozMjoxNFBNICswMTAwLCBMZWUgSm9uZXMgd3JvdGU6Cj4gPiBTaW5jZSBk ZGF0YS0+aXJxc1tdIGlzIGFscmVhZHkgemVyb2VkIHdoZW4gYWxsb2NhdGVkIGJ5IGRldm1fa2Nh bGxvYygpIGFuZAo+ID4gZGl2aWRpbmcgMCBieSBhbnl0aGluZyBpcyBzdGlsbCAwLCB0aGVyZSBp cyBubyBuZWVkIHRvIHJlLWFzc2lnbgo+ID4gZGRhdGEtPmlycXNbaV0uKiB2YWx1ZXMuICBJbnN0 ZWFkLCBpdCBzaG91bGQgYmUgc2FmZSB0byBiZWdpbiBhdCAxLgo+ID4gCj4gPiBUaGlzIGZpeGVz IHRoZSBmb2xsb3dpbmcgVz0xIHdhcm5pbmc6Cj4gPiAKPiA+ICBkcml2ZXJzL21mZC9zcHJkLXNj Mjd4eC1zcGkuYzoyNTUgc3ByZF9wbWljX3Byb2JlKCkgZGVidWc6IHN2YWxfYmlub3BfdW5zaWdu ZWQ6IGRpdmlkZSBieSB6ZXJvCj4gPiAKPiA+IENjOiBPcnNvbiBaaGFpIDxvcnNvbnpoYWlAZ21h aWwuY29tPgo+ID4gQ2M6IEJhb2xpbiBXYW5nIDxiYW9saW4ud2FuZzdAZ21haWwuY29tPgo+ID4g Q2M6IENodW55YW4gWmhhbmcgPHpoYW5nLmx5cmFAZ21haWwuY29tPgo+ID4gU2lnbmVkLW9mZi1i eTogTGVlIEpvbmVzIDxsZWUuam9uZXNAbGluYXJvLm9yZz4KPiA+IC0tLQo+ID4gIGRyaXZlcnMv bWZkL3NwcmQtc2MyN3h4LXNwaS5jIHwgMiArLQo+ID4gIDEgZmlsZSBjaGFuZ2VkLCAxIGluc2Vy dGlvbigrKSwgMSBkZWxldGlvbigtKQo+ID4gCj4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9tZmQv c3ByZC1zYzI3eHgtc3BpLmMgYi9kcml2ZXJzL21mZC9zcHJkLXNjMjd4eC1zcGkuYwo+ID4gaW5k ZXggYzMwNWU5NDFlNDM1Yy4uNjk0YTdkNDI5Y2NmZiAxMDA2NDQKPiA+IC0tLSBhL2RyaXZlcnMv bWZkL3NwcmQtc2MyN3h4LXNwaS5jCj4gPiArKysgYi9kcml2ZXJzL21mZC9zcHJkLXNjMjd4eC1z cGkuYwo+ID4gQEAgLTI1MSw3ICsyNTEsNyBAQCBzdGF0aWMgaW50IHNwcmRfcG1pY19wcm9iZShz dHJ1Y3Qgc3BpX2RldmljZSAqc3BpKQo+ID4gIAkJcmV0dXJuIC1FTk9NRU07Cj4gPiAgCj4gPiAg CWRkYXRhLT5pcnFfY2hpcC5pcnFzID0gZGRhdGEtPmlycXM7Cj4gPiAtCWZvciAoaSA9IDA7IGkg PCBwZGF0YS0+bnVtX2lycXM7IGkrKykgewo+ID4gKwlmb3IgKGkgPSAxOyBpIDwgcGRhdGEtPm51 bV9pcnFzOyBpKyspIHsKPiA+ICAJCWRkYXRhLT5pcnFzW2ldLnJlZ19vZmZzZXQgPSBpIC8gcGRh dGEtPm51bV9pcnFzOwo+ID4gIAkJZGRhdGEtPmlycXNbaV0ubWFzayA9IEJJVChpICUgcGRhdGEt Pm51bV9pcnFzKTsKPiA+ICAJfQo+IAo+IFRoaXMgZG9lc24ndCBsb29rIHJpZ2h0IGVpdGhlci4K PiAKPiBGaXJzdCwgdGhlIGxvb3AgaXMgbmV2ZXIgZXhlY3V0ZWQgaWYgbnVtX2lycXMgaXMgemVy by4KClRoZSBwb2ludCBvZiB0aGUgcGF0Y2ggaXMgdGhhdCAwIGVudHJpZXMgYXJlIG5ldmVyIHBy b2Nlc3NlZC4KCkhvd2V2ZXIsIHdoYXQgSSBhcHBlYXIgdG8gaGF2ZSBvdmVybG9va2VkIGlzIHRo YXQgQklUKDAgJSB4KSBpcyBub3QgMCwKaXQncyAxLgoKPiBTZWNvbmQsIHRoZSBjdXJyZW50IGNv ZGUgbG9va3MgYm9ndXMgdG9vIGFzIHJlZ19vZmZzZXQgaXMgYWx3YXlzIHNldCB0bwo+IHplcm8g YW5kIG1hc2sgdG8gQklUKGkpLi4uCgpIZWguICBJIHdvbmRlciBpZi9ob3cgdGhpcyB3YXMgdGVz dGVkLgoKSSdtIGdvaW5nIHRvIHdhaXQgdG8gaGVhciBmcm9tIHRoZSBhdXRob3JzIGJlZm9yZSBh dHRlbXB0aW5nIHRvIGZpeAp0aGlzIGFnYWluLgoKQmFvbGluLCBDb3VsZCB5b3UgcGxlYXNlIGNs YXJpZnkgdGhpcyBmb3IgdXMgcGxlYXNlPwoKLS0KTGVlIEpvbmVzIFvmnY7nkLzmlq9dClNlbmlv ciBUZWNobmljYWwgTGVhZCAtIERldmVsb3BlciBTZXJ2aWNlcwpMaW5hcm8ub3JnIOKUgiBPcGVu IHNvdXJjZSBzb2Z0d2FyZSBmb3IgQXJtIFNvQ3MKRm9sbG93IExpbmFybzogRmFjZWJvb2sgfCBU d2l0dGVyIHwgQmxvZwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0 cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGlu Zm8vbGludXgtYXJtLWtlcm5lbAo=