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b=cZontPJPkPYCIdi+5VQmQhqNqY1ysdg3DrEwbQZUca9ddTzNzaHPKEibsgVNYWgEC 4jeHIEeHWqS/GCn/FweRN1R5+rvD7uiD29Vk0HT3oOzLaUNOR2bsAOgoLzHJow78Zo LtSHj3lqLqfL0q9sr9dffxv+BCHr1XcK4xBeKUnIzoSwlIBdc1eF/7xJzbSP4GQ7KU MYLEzCi6PioXg5D8uDGBLLdWVow2lZJJDuDMUlLFMZO51WK/hCS94TpcuctSZQgo6X r+Fa90kkklaBYAkVmH63SE9w3V1O97V8XqjRcGg9Cybzg1RrdHsWfDFOvThpfSKdiS KN1uypl9Xgo0Q== Date: Sun, 9 Nov 2025 09:31:34 +0200 From: Mike Rapoport To: Pasha Tatashin Cc: akpm@linux-foundation.org, graf@amazon.com, linux-kernel@vger.kernel.org, kexec@lists.infradead.org, linux-mm@kvack.org, pratyush@kernel.org Subject: Re: [PATCH] lib/test_kho: Check if KHO is enabled Message-ID: References: <20251106220635.2608494-1-pasha.tatashin@soleen.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251106220635.2608494-1-pasha.tatashin@soleen.com> X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 0A595180004 X-Stat-Signature: mfipf17xyyzoaoodomgis4aasougkueg X-Rspam-User: X-HE-Tag: 1762673501-254057 X-HE-Meta: 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 NwQRs4bg gzrfCOCHs+wcXvWBiBH5qXr1+RhEPmKf6/w1nbx9pqaktr2OCMtyERtO7Lz760pN2FQwpln3i0kJbvMPCcdpopKigFcvoNfngP+7nBlwpNxqAcqD3SFo9l2/OmTvXXSnKAAOT4XZKoXNdYBNuzCEfm5/fDs9MsdVaEYaQhoLN714Rg61R/UzTLwoYAJUvBOvLZ14nDQ3BAxybZ9OafKRtAlDBLFNaIU2JHX4P/kGEXqsrHu3zJ+TdW053zRywlvmZOCpfTxRTnHhIq6s25UKgQJuQPgfiNH0mHIue4fbXxs31IZH/hk4JpzZqjNsaSjbh/igQbHRP/LTpD/VTIqD967+E8V0nFqBdLUQQomBgP+5SJIP4sJUajTHLkOM6SqfkuB22Yuk/7tD8sT15fqfAIWnBVQ== 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 Thu, Nov 06, 2025 at 05:06:35PM -0500, Pasha Tatashin wrote: > We must check whether KHO is enabled prior to issuing KHO commands, > otherwise KHO internal data structures are not initialized. > > Fixes: b753522bed0b ("kho: add test for kexec handover") > > Reported-by: kernel test robot > Closes: https://lore.kernel.org/oe-lkp/202511061629.e242724-lkp@intel.com > > Signed-off-by: Pasha Tatashin Reviewed-by: Mike Rapoport (Microsoft) > --- > lib/test_kho.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/lib/test_kho.c b/lib/test_kho.c > index 025ea251a186..85b60d87a50a 100644 > --- a/lib/test_kho.c > +++ b/lib/test_kho.c > @@ -315,6 +315,9 @@ static int __init kho_test_init(void) > phys_addr_t fdt_phys; > int err; > > + if (!kho_is_enabled()) > + return 0; > + > err = kho_retrieve_subtree(KHO_TEST_FDT, &fdt_phys); > if (!err) > return kho_test_restore(fdt_phys); > -- > 2.51.2.1041.gc1ab5b90ca-goog > -- Sincerely yours, Mike.