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[75.218.193.33]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1831b859142sm302156c88.18.2026.10.15.14.41.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 15 Oct 2026 14:41:19 -0700 (PDT) Message-ID: <8ed23bd7-f783-47c4-8a30-bfdf74e95015@oss.qualcomm.com> Date: Thu, 15 Oct 2026 14:41:17 -0700 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH RFC 2/5] nvmem: Add UEFI variable NVMEM provider To: Bartosz Golaszewski , Abel Vesa Cc: Bjorn Andersson , Dmitry Baryshkov , Konrad Dybcio , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-bluetooth@vger.kernel.org, linux-wireless@vger.kernel.org, ath12k@lists.infradead.org, Srinivas Kandagatla , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Marcel Holtmann , Luiz Augusto von Dentz , Jeff Johnson , Konrad Dybcio , Abel Vesa References: <20261014-b4-nvmem-efivar-v1-0-187c85f65018@oss.qualcomm.com> <20261014-b4-nvmem-efivar-v1-2-187c85f65018@oss.qualcomm.com> From: Jeff Johnson Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: 1atl36bxjy-Fe14hBE_sHYQ6l_oKf3bh X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDE1MDA4NiBTYWx0ZWRfX9EyhiIIh2a2c jKOe7/GUgRb3DHl2ThLhUGTiL/NDl/DWjjkYoPsk1NnDFMPMRTm8owaR6nLsy1Ox/UGRRaqV4x7 fe6tcL3dPPZ/nKKmBdKzIZb6f5f+rsSD0M6KuG5OKs+Ht7PbdqX8OfH5+EdXd3ljWfn1x4IivO5 nWsBNbinhDTaRZOhP0jDLkYlzpOzmvepKusN64d2FTkVrKv+pmvr1kopZapnCrgB6D/DzYiIG5f bi7Xmf08Da2Kxwqf1l5c/ZztUbafHSLI9rUIWV0RTMUxrWoh+Ww0z/w3EQF9sRVAG/zE++qqEd+ gTsxmDCtH08fVVRsIVnUowNMxTFKqUzdtj1nljKnGAi1sirDvhTayGtr9UXVsWTTtGnf9oEhGj/ oRBQuRc7jqfmjsBnCmmJO/CSI47anC51kzbGpK0dZXclUVKvNVD7pzbU/j8TxBNl90xBXc3FRj1 N06dIpkDxH29NxlyeFA== X-Proofpoint-Spam-Info: AW1haW4tMjYxMDE1MDA4NiBTYWx0ZWRfX/jqJHPsEBC+3 XkFp/spY9VKtRazOg3BSWajv74FA3jc5hJD9/pNH8dU0vEzp1i7LoxTcTnGvgpra+vUEU7T1Rsz HxYsWzpisJNKu8GhNtDJN53vJNARDxo= X-Authority-Analysis: v=2.4 cv=Eb5d0/mC c=1 sm=1 tr=0 ts=6ad14881 cx=c_pps a=Uww141gWH0fZj/3QKPojxA==:117 a=AnolQpdaNwb4XK4FG+QP+g==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=S4S59HBQktVEhwL6IfYA:9 a=QEXdDO2ut3YA:10 a=PxkB5W3o20Ba91AHUih5:22 X-Proofpoint-ORIG-GUID: 1atl36bxjy-Fe14hBE_sHYQ6l_oKf3bh X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-14_01,2026-10-14_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 impostorscore=0 phishscore=0 bulkscore=0 priorityscore=1501 clxscore=1015 lowpriorityscore=0 adultscore=0 malwarescore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610080000 definitions=main-2610150086 On 10/15/2026 6:22 AM, Bartosz Golaszewski wrote: > On Wed, 14 Oct 2026 15:02:40 +0200, Abel Vesa said: >> +static int efivar_nvmem_find_guid(const efi_char16_t *want, efi_guid_t *out) >> +{ >> + unsigned long max = 512; /* in UCS-2 chars; variable names are short */ >> + efi_char16_t *name; >> + efi_guid_t vendor = {}; >> + efi_status_t status; >> + int ret = -ENODEV; >> + >> + name = kcalloc(max, sizeof(*name), GFP_KERNEL); > > efi_char_16t *name __free(kfree) = kcalloc(...); = kzalloc_objs(*name, max); ??