From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-176.mta1.migadu.com (out-176.mta1.migadu.com [95.215.58.176]) (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 323DD1E89C for ; Fri, 6 Mar 2026 01:17:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=95.215.58.176 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772759826; cv=none; b=mVR+DUc2Gx68zoQS7GvOUoE4HS+6aCFGTqUG+qJYytlIC7E+V2rFLNW0doCXqGEPrv6t0QmYdCGEmnjoy1EfbDxcSWIuS6fz3vD32yd8BsCovY2Ks5PxjQyA1oWgL7WfUaaa9CGDDDyjNfwQMdeiDrYt6Xo+dUo+Xyd7Vy6uCLU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772759826; c=relaxed/simple; bh=XHe3bqQF1TXr1bvmZLA2gqmqdCXluKv2sMBgo6vYN70=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Bttr4Nd9xg/ZPdyGWAVKX2Re+Lnme1rvHAgQl34bVf3hlAlZmUGlBPPw38HfsZ6Rkhs8zo6sHZ/jtHbLBhjMlqzLw44tCOWSIj4lJYxAaksZBL/RW89OEvi1YzRwgtABxK+0BGqKaZ//uoXG0Oyfs0+XyGWyWls5fN9/MFUoHJI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=VfztiJzs; arc=none smtp.client-ip=95.215.58.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="VfztiJzs" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1772759813; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Kqcm7Z2shZIKcebTa2M2yVzMFVleSUUyn7osg/dyLAo=; b=VfztiJzsvbtLZ9usoRJLPAKM0wGbuGwAfHCKQL41uzcRKkLYbio1T3DOod83Ikm9ghQmKN ZslXMvH/Edy+1Sj+76VyXPzC1P01sBhWR6yoHA+BQizjSM2r8nwLGeMmig6HHcVZfnPTvy l8tCygYE9bd77K4PfcGM9xAzNyCH2D8= From: Menglong Dong To: Varun R Mallya Cc: andrii@kernel.org, eddyz87@gmail.com, toke@redhat.com, ast@kernel.org, daniel@iogearbox.net, song@kernel.org, bpf@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, varunrmallya@gmail.com Subject: Re: [PATCH bpf-next] selftests/bpf: Fix const qualifier warning in fexit_bpf2bpf.c Date: Fri, 06 Mar 2026 09:16:41 +0800 Message-ID: <12848362.O9o76ZdvQC@7940hx> In-Reply-To: <20260305222132.470700-1-varunrmallya@gmail.com> References: <20260305222132.470700-1-varunrmallya@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" X-Migadu-Flow: FLOW_OUT On 2026/3/6 06:21 Varun R Mallya write: > Building selftests with > clang 23.0.0 (6fae863eba8a72cdd82f37e7111a46a70be525e0) triggers > the following error: > > tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c:117:12: > error: assigning to 'char *' from 'const char *' discards qualifiers > [-Werror,-Wincompatible-pointer-types-discards-qualifiers] > > The variable `tgt_name` is declared as `char *`, but it stores the > result of strstr(prog_name[i], "/"). Since `prog_name[i]` is a > `const char *`, the returned pointer should also be treated as > const-qualified. > > Update `tgt_name` to `const char *` to match the type of the underlying > string and silence the compiler warning. > > Signed-off-by: Varun R Mallya > --- > tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c > index 23d933f1aec6..92c20803ea76 100644 > --- a/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c > +++ b/tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c > @@ -111,7 +111,7 @@ static void test_fexit_bpf2bpf_common(const char *obj_file, > struct bpf_link_info link_info; > struct bpf_program *pos; > const char *pos_sec_name; > - char *tgt_name; > + const char *tgt_name; I have been suffering from this build error too. So, Acked-by: Menglong Dong > __s32 btf_id; > > tgt_name = strstr(prog_name[i], "/"); > -- > 2.53.0 > > >