{"id":2228651,"url":"http://patchwork.ozlabs.org/api/1.1/patches/2228651/?format=json","web_url":"http://patchwork.ozlabs.org/project/buildroot/patch/20260427074835.1452504-4-kanak.shilledar@axis.com/","project":{"id":27,"url":"http://patchwork.ozlabs.org/api/1.1/projects/27/?format=json","name":"Buildroot development","link_name":"buildroot","list_id":"buildroot.buildroot.org","list_email":"buildroot@buildroot.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260427074835.1452504-4-kanak.shilledar@axis.com>","date":"2026-04-27T07:48:37","name":"[v2,1/1] support: kconfig: Fix compiler warnings","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"ecb1a5ff14fe34fc57a6fbd1ad268bb1ad654552","submitter":{"id":93250,"url":"http://patchwork.ozlabs.org/api/1.1/people/93250/?format=json","name":"Kanak Shilledar","email":"kanak.shilledar@axis.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/buildroot/patch/20260427074835.1452504-4-kanak.shilledar@axis.com/mbox/","series":[{"id":501593,"url":"http://patchwork.ozlabs.org/api/1.1/series/501593/?format=json","web_url":"http://patchwork.ozlabs.org/project/buildroot/list/?series=501593","date":"2026-04-27T07:48:35","name":"support: kconfig: Fix compiler warnings","version":2,"mbox":"http://patchwork.ozlabs.org/series/501593/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2228651/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2228651/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":["incoming-buildroot@patchwork.ozlabs.org","buildroot@buildroot.org"],"Delivered-To":["patchwork-incoming-buildroot@legolas.ozlabs.org","buildroot@buildroot.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=buildroot.org header.i=@buildroot.org\n header.a=rsa-sha256 header.s=default header.b=ru79hSOB;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=buildroot.org\n (client-ip=140.211.166.136; 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charset=\"utf-8\"","Content-Transfer-Encoding":"base64","Errors-To":"buildroot-bounces@buildroot.org","Sender":"\"buildroot\" "},"content":"On Ubuntu 24.04.4, the compiler gives the warning of\n`-Wformat-overflow=`.\n\n```\n./util.c: In function ‘file_write_dep’:\n./util.c:86:26: warning: ‘%s’ directive writing 10 or more bytes into a region of size between 1 and 4097 [-Wformat-overflow=]\n 86 | sprintf(buf2, \"%s%s\", dir, name);\n | ^~\n./util.c:86:9: note: ‘sprintf’ output 11 or more bytes (assuming 4107) into a destination of size 4097\n 86 | sprintf(buf2, \"%s%s\", dir, name);\n | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n```\n\nUpdate `buf2` to `PATH_MAX+20` similar to `buf`, thus giving enough\nheadroom for the filename suffix.\n\n--\nChanges in v2:\n* Changed from direct file fix to patch based fix.\n\nSigned-off-by: Kanak Shilledar \n---\n .../24-support-kconfig-fix-compiler-warnings.patch | 14 ++++++++++++++\n 1 file changed, 14 insertions(+)\n create mode 100644 support/kconfig/patches/24-support-kconfig-fix-compiler-warnings.patch","diff":"diff --git a/support/kconfig/patches/24-support-kconfig-fix-compiler-warnings.patch b/support/kconfig/patches/24-support-kconfig-fix-compiler-warnings.patch\nnew file mode 100644\nindex 0000000000..daef13bcf6\n--- /dev/null\n+++ b/support/kconfig/patches/24-support-kconfig-fix-compiler-warnings.patch\n@@ -0,0 +1,14 @@\n+Index: kconfig/util.c\n+===================================================================\n+--- kconfig.orig/util.c\n++++ kconfig/util.c\n+@@ -35,7 +35,7 @@ struct file *file_lookup(const char *name)\n+ int file_write_dep(const char *name)\n+ {\n+ \tchar *str;\n+-\tchar buf[PATH_MAX+20], buf2[PATH_MAX+1], dir[PATH_MAX+1];\n++\tchar buf[PATH_MAX+20], buf2[PATH_MAX+20], dir[PATH_MAX+1];\n+ \tstruct symbol *sym, *env_sym;\n+ \tstruct expr *e;\n+ \tstruct file *file;\n+\n","prefixes":["v2","1/1"]}