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AJvYcCV8JFNnmF2q7Rf9ZonIe8Za9wUs93qEKOoTNxj8AzR0rpcqAQNkXCdRiO9Q/xaIp+nR/L1fa6H2bQ==@kvack.org X-Gm-Message-State: AOJu0YyPavheit4hsC04j8mtx0Z+RW039Fedtdh0TxYF8fnebFsIPlmn JQUCyO4owEn7MJBmrv7sAJk9E7txOr5NB/uARqmwJkvKA0I0MApLFGZwxYR39iGKBxwMnVG2ffS vlj5IJk8P1PKHUVWk+5A414JQtw6VfSUm6d6prvVg1g== X-Gm-Gg: ASbGncvxTNikAI10UfOS2BFxRt95QjXNPgyxdZll8J1qLsw7TFkmFTBixprv4FupTUD d/ufq3nfckW8M+Iy1TgANjZ06Se9BVK1Gg5iFvkI9+9rV5lJvNxEmcT1ePwB1zcDT9G8P9SeWN3 jXE1notkTsEdeGnOe8lOfgpd6fVxxvbSobx2bX+WA/uwW+vNDLnttIf3JfBM4Gme2wzo6MW7Xv2 c5o9iPVoRCwnSDqS6O8bglTYBXoDrzurpWeihdQY8XddveaM59nxSQOcg== X-Google-Smtp-Source: AGHT+IHkWWZErYuLad1UBr4njjLSBFdMzkNER6OzhDlN3Gq2YnhAVj0tylfyLg91Povf3vXT6QPN/toCi7bUhtkuZFk= X-Received: by 2002:a05:6402:35d6:b0:63c:690d:6a46 with SMTP id 4fb4d7f45d1cf-641058d0b39mr882506a12.13.1762297981094; Tue, 04 Nov 2025 15:13:01 -0800 (PST) MIME-Version: 1.0 References: <202511042251.paO6f5BZ-lkp@intel.com> <20251104141501.48a1f76a3f83967f08d00097@linux-foundation.org> In-Reply-To: <20251104141501.48a1f76a3f83967f08d00097@linux-foundation.org> From: Pasha Tatashin Date: Tue, 4 Nov 2025 18:12:24 -0500 X-Gm-Features: AWmQ_bnjdc4QtlbQ63r-Q4KMUd0Myc6Dyj0vlY4QdgnbVI_lhk-7gxKFlvCmp18 Message-ID: Subject: Re: [linux-next:master 4972/5926] kernel/kexec_handover_debug.c:16:18: error: use of undeclared identifier 'kho_scratch_cnt' To: Andrew Morton Cc: Mike Rapoport , llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List , kernel test robot Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: aqzbanwg4xizhzspnb1bfpj1gwwcxsch X-Rspam-User: X-Rspamd-Queue-Id: D20AB160009 X-Rspamd-Server: rspam01 X-HE-Tag: 1762297982-184167 X-HE-Meta: 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 +fDj0DT+ uyoxyVmCM65g1CeJrs280VDyFO0KjpVTMnLl7SeDOmD6rUFethrEbhD379zcwFt+PIPIKXmCe5ngG6zKXa09M3r+y2XfIrnAai5rbdKOKz628tJodkYn6oOlNrMwDh2Kw1mnPZD9wN7z3FjPxbBbt0hQXCN7alyV/J1JNJuWwX3+qb/5x+5ybRH9AXfe+P/DyyZEknImDKdoxX60IW8T20Axiq+XPJOd6jlXignyzWssNL+N9MfBihwR9dUMsHpLsTijOwB+h2pC4vnhSB2Za4vcQEHoifWZ+ptDW8dNtx7yyyXLPaK5Pkcbkz7XVEpyU7Djzv7UyUVSRLVJUZLvfGQ0clIFk0dCf9Imt X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Nov 4, 2025 at 5:15=E2=80=AFPM Andrew Morton wrote: > > On Tue, 4 Nov 2025 12:50:49 -0500 Pasha Tatashin wrote: > > > The fix looks like this: > > diff --git a/kernel/kexec_handover.c b/kernel/kexec_handover.c > > index de4466b47455..2a8c20c238a8 100644 > > --- a/kernel/kexec_handover.c > > +++ b/kernel/kexec_handover.c > > @@ -477,8 +477,8 @@ static void __init kho_mem_deserialize(const void *= fdt) > > * area for early allocations that happen before page allocator is > > * initialized. > > */ > > -static struct kho_scratch *kho_scratch; > > -static unsigned int kho_scratch_cnt; > > +struct kho_scratch *kho_scratch; > > +unsigned int kho_scratch_cnt; > > This patch is making changes which are already present. > > > --- a/kernel/kexec_handover_internal.h > > +++ b/kernel/kexec_handover_internal.h > > Against files which were moved to kernel/liveupdate/! > > > Andrew, Mike, do you want me to resend the "[PATCH v3 0/3] KHO: kfence > > + KHO memory corruption fix" series with the fix included? > > A little fix against what's presently in mm.git would be great, please. Hi Andrew, This is because in mm.git you have patches that move kexec_handover* to kernel/liveupdate/ (and they fix this build problem), but linux-next does not have these patches. The patch I sent is a fixup for "kho: warn and fail on metadata or preserved memory in scratch area" patch.