{"id":2227872,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2227872/?format=json","web_url":"http://patchwork.ozlabs.org/project/buildroot/patch/20260424122917.3911794-2-kanak.shilledar@axis.com/","project":{"id":27,"url":"http://patchwork.ozlabs.org/api/1.2/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":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260424122917.3911794-2-kanak.shilledar@axis.com>","list_archive_url":null,"date":"2026-04-24T12:29:16","name":"[1/1] support: kconfig: Fix compiler warnings","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"a19c301a651862757f69bcb90d26f8733595845c","submitter":{"id":93250,"url":"http://patchwork.ozlabs.org/api/1.2/people/93250/?format=json","name":"Kanak Shilledar","email":"kanak.shilledar@axis.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/buildroot/patch/20260424122917.3911794-2-kanak.shilledar@axis.com/mbox/","series":[{"id":501355,"url":"http://patchwork.ozlabs.org/api/1.2/series/501355/?format=json","web_url":"http://patchwork.ozlabs.org/project/buildroot/list/?series=501355","date":"2026-04-24T12:29:16","name":"support: kconfig: Fix compiler warnings","version":1,"mbox":"http://patchwork.ozlabs.org/series/501355/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2227872/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2227872/checks/","tags":{},"related":[],"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=ZV2y7TqM;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=buildroot.org\n (client-ip=2605:bc80:3010::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\nSigned-off-by: Kanak Shilledar \n---\n support/kconfig/util.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)","diff":"diff --git a/support/kconfig/util.c b/support/kconfig/util.c\nindex 8665f5bb89..c2e7979ac1 100644\n--- a/support/kconfig/util.c\n+++ b/support/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","prefixes":["1/1"]}