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Message-ID: <CAL_JsqKVp57NtR11JV-eXktMU9_dQ+8sF8YSPe7KyazrvJB-eQ@mail.gmail.com> Date: Fri, 27 Jan 2023 17:44:13 -0600 From: Rob Herring <robh+dt@...nel.org> To: Kees Cook <keescook@...omium.org> Cc: Frank Rowand <frowand.list@...il.com>, devicetree@...r.kernel.org, "Gustavo A. R. Silva" <gustavoars@...nel.org>, linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org Subject: Re: [PATCH] scripts/dtc: Replace 0-length arrays with flexible arrays On Fri, Jan 27, 2023 at 4:41 PM Kees Cook <keescook@...omium.org> wrote: > > Replace the 0-length array with a C99 flexible array. Seen with GCC 13 > under -fstrict-flex-arrays: > > In file included from ../lib/fdt_ro.c:2: > ../lib/../scripts/dtc/libfdt/fdt_ro.c: In function 'fdt_get_name': > ../lib/../scripts/dtc/libfdt/fdt_ro.c:319:24: warning: 'strrchr' reading 1 or more bytes from a region of size 0 [-Wstringop-overread] > 319 | leaf = strrchr(nameptr, '/'); > | ^~~~~~~~~~~~~~~~~~~~~ > > Cc: Rob Herring <robh+dt@...nel.org> > Cc: Frank Rowand <frowand.list@...il.com> > Cc: devicetree@...r.kernel.org > Signed-off-by: Kees Cook <keescook@...omium.org> > --- > scripts/dtc/libfdt/fdt.h | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) Changes to dtc/libfdt go to upstream dtc first and then we sync them back. Rob
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