From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2A6BA43C07E for ; Fri, 15 May 2026 09:11:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778836270; cv=none; b=IPJJPKhPV9q9xtS11r22BYQISxTVeW2FGOpx9v3l2AA1jLHNTFZOnjIzDGY0is0A4hi5tnhIJFesBfFqxn2J8h84CAdWBk8sxBjJEpUB9YKt6wGHGmZIu7wCsoneJiuOea5Pw4uCCtwcUwr2irfaHrJ8UoF0Lk2487f2nJEdUnc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778836270; c=relaxed/simple; bh=h6wPzr4wnwGKqTUyJYMkReLJPI/jZqHAvOssNtJ63fo=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=WW1EGUO0wW8LAOC8/1SQIpyw3NlGUv6eTuQWNdAm41EJS738LCYwmmWZFtyQlwxCi85k6+vP/J/ovrhGIEkcOjHYBP197iOLDchSozTChG3V39UsQHCMh6OvR91847n/0TTk2xWV9RpImfCPZZiMlSfj+GMTlFykl+HUjz2LCZA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=V+arvoFP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="V+arvoFP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 86632C2BCB0; Fri, 15 May 2026 09:11:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778836270; bh=h6wPzr4wnwGKqTUyJYMkReLJPI/jZqHAvOssNtJ63fo=; h=From:To:Cc:Subject:Date:From; b=V+arvoFPmuYK8J3wE/whgApnk2q9+ZDDsT3v0oI9YkJKHTR7Vrvfj1SWcXcqkknDB S/imkJHjbOM8J/VP/bJ04sB8lTiUB4baBXrObxhnGWZEz0MyG+Dqo5Zwul0/k1lQDs FoNYTS6MMb8Cvtk/XXob+Okd7wEiydcsJ0JpsTmTIstQxEzozyFR5/lmuX4khFGgko TwTLAK0IJf4zAGunY6JlSOUvgPYHa51/xXXXbk1yzKfHT3Cw46qDAdvm7up9YRupx1 e7O7FSkmLFodObDDjOvT5SZ08iQeVP6xcmJH5H4XgMm3P+sH7EPmweLDAhc0Po3nZT ODk56nN9ngjcA== From: Arnd Bergmann To: Alex Deucher , =?UTF-8?q?Christian=20K=C3=B6nig?= , David Airlie , Simona Vetter , Dave Airlie , Jerome Glisse Cc: Arnd Bergmann , Chris Down , "Borislav Petkov (AMD)" , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH] drm/radeon: avoid printing NULL strings Date: Fri, 15 May 2026 11:10:26 +0200 Message-Id: <20260515091054.529610-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Arnd Bergmann gcc-10 warns about some printf format strings that are used to unconditionally print a NULL string pointer from some call sites: In function 'evergreen_surface_check', inlined from 'evergreen_cs_track_validate_stencil' at drivers/gpu/drm/radeon/evergreen_cs.c:592:6, inlined from 'evergreen_cs_track_check' at drivers/gpu/drm/radeon/evergreen_cs.c:995:8: include/linux/dev_printk.h:156:24: error: '%s' directive argument is null [-Werror=format-overflow=] 156 | dev_printk_index_wrap(_dev_warn, KERN_WARNING, dev, dev_fmt(fmt), ##__VA_ARGS__) This is harmless here because the kernel prints them as "(null)", but still breaks the build when compiling with -Werror. Pass empty strings instead to avoid these warnings. Fixes: 285484e2d55e ("drm/radeon: add support for evergreen/ni tiling informations v11") Signed-off-by: Arnd Bergmann --- drivers/gpu/drm/radeon/evergreen_cs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c index daaeae6ba141..550e8f35c7d2 100644 --- a/drivers/gpu/drm/radeon/evergreen_cs.c +++ b/drivers/gpu/drm/radeon/evergreen_cs.c @@ -589,7 +589,7 @@ static int evergreen_cs_track_validate_stencil(struct radeon_cs_parser *p) return r; } - r = evergreen_surface_check(p, &surf, NULL); + r = evergreen_surface_check(p, &surf, ""); if (r) { /* old userspace doesn't compute proper depth/stencil alignment * check that alignment against a bigger byte per elements and @@ -818,7 +818,7 @@ static int evergreen_cs_track_validate_texture(struct radeon_cs_parser *p, } /* align height */ - evergreen_surface_check(p, &surf, NULL); + evergreen_surface_check(p, &surf, ""); surf.nby = ALIGN(surf.nby, surf.halign); r = evergreen_surface_check(p, &surf, "texture"); @@ -881,7 +881,7 @@ static int evergreen_cs_track_validate_texture(struct radeon_cs_parser *p, surf.mode = ARRAY_1D_TILED_THIN1; } /* recompute alignment */ - evergreen_surface_check(p, &surf, NULL); + evergreen_surface_check(p, &surf, ""); break; case ARRAY_LINEAR_GENERAL: case ARRAY_LINEAR_ALIGNED: -- 2.39.5