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[93.30.169.51]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-43d8ff02f9csm21538575e9.26.2025.03.28.02.29.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Mar 2025 02:29:39 -0700 (PDT) Message-ID: <7afc3a7e-1dd8-4dbb-b243-75bd554c00da@canonical.com> Date: Fri, 28 Mar 2025 10:29:38 +0100 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH V3] block: fix conversion of GPT partition name to 7-bit To: Ben Hutchings , Ming Lei , Jens Axboe , linux-block@vger.kernel.org Cc: linux-efi@vger.kernel.org, Mulhern , Davidlohr Bueso , stable@vger.kernel.org References: <20250305022154.3903128-1-ming.lei@redhat.com> <3fa05bba190bec01df2bc117cf7e3e2f00e8b946.camel@decadent.org.uk> Content-Language: en-US From: Olivier Gayot In-Reply-To: <3fa05bba190bec01df2bc117cf7e3e2f00e8b946.camel@decadent.org.uk> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit > We shouldn't mask the input character; instead we should do a range > check before calling isprint(). Something like: > > u16 uc = le16_to_cpu(in[i]); > u8 c; > > if (uc < 0x80 && (uc == 0 || isprint(uc))) > c = uc; > else > c = '!'; Sounds like a good alternative to me. Would a conversion from utf-16-le to utf-8 be a viable solution?