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Miller" , Eric Dumazet , "Jakub Kicinski" , Paolo Abeni , Saeed Mahameed , Leon Romanovsky , Tariq Toukan , Mark Bloch CC: , , , , "Aleksandr Loktionov" , Simon Horman , Paul Menzel References: <20250811-restricted-pointers-net-v5-0-2e2fdc7d3f2c@linutronix.de> Content-Language: en-US From: Jacob Keller Autocrypt: addr=jacob.e.keller@intel.com; keydata= xjMEaFx9ShYJKwYBBAHaRw8BAQdAE+TQsi9s60VNWijGeBIKU6hsXLwMt/JY9ni1wnsVd7nN J0phY29iIEtlbGxlciA8amFjb2IuZS5rZWxsZXJAaW50ZWwuY29tPsKTBBMWCgA7FiEEIEBU qdczkFYq7EMeapZdPm8PKOgFAmhcfUoCGwMFCwkIBwICIgIGFQoJCAsCBBYCAwECHgcCF4AA CgkQapZdPm8PKOiZAAEA4UV0uM2PhFAw+tlK81gP+fgRqBVYlhmMyroXadv0lH4BAIf4jLxI UPEL4+zzp4ekaw8IyFz+mRMUBaS2l+cpoBUBzjgEaFx9ShIKKwYBBAGXVQEFAQEHQF386lYe MPZBiQHGXwjbBWS5OMBems5rgajcBMKc4W4aAwEIB8J4BBgWCgAgFiEEIEBUqdczkFYq7EMe apZdPm8PKOgFAmhcfUoCGwwACgkQapZdPm8PKOjbUQD+MsPBANqBUiNt+7w0dC73R6UcQzbg cFx4Yvms6cJjeD4BAKf193xbq7W3T7r9BdfTw6HRFYDiHXgkyoc/2Q4/T+8H In-Reply-To: <20250811-restricted-pointers-net-v5-0-2e2fdc7d3f2c@linutronix.de> Content-Type: multipart/signed; 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boundary="------------3RVlkU3S061k0nbj06nuUFbK"; protected-headers="v1" From: Jacob Keller To: =?UTF-8?Q?Thomas_Wei=C3=9Fschuh?= , Tony Nguyen , Przemek Kitszel , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Saeed Mahameed , Leon Romanovsky , Tariq Toukan , Mark Bloch Cc: intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, Aleksandr Loktionov , Simon Horman , Paul Menzel Message-ID: <08e315e3-8f29-42c3-97d6-6449bf3cb716@intel.com> Subject: Re: [PATCH net-next v5 0/2] net: Don't use %pK through printk or tracepoints References: <20250811-restricted-pointers-net-v5-0-2e2fdc7d3f2c@linutronix.de> In-Reply-To: <20250811-restricted-pointers-net-v5-0-2e2fdc7d3f2c@linutronix.de> --------------3RVlkU3S061k0nbj06nuUFbK Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On 8/11/2025 2:43 AM, Thomas Wei=C3=9Fschuh wrote: > In the past %pK was preferable to %p as it would not leak raw pointer > values into the kernel log. > Since commit ad67b74d2469 ("printk: hash addresses printed with %p") > the regular %p has been improved to avoid this issue. > Furthermore, restricted pointers ("%pK") were never meant to be used > through printk(). They can still unintentionally leak raw pointers or > acquire sleeping locks in atomic contexts. >=20 > Switch to the regular pointer formatting which is safer and > easier to reason about. > There are still a few users of %pK left, but these use it through seq_f= ile, > for which its usage is safe. >=20 > Signed-off-by: Thomas Wei=C3=9Fschuh > --- > Changes in v5: > - Rebase on v6.17-rc1 > - Bick up Reviewed-by from Paul > - Link to v4: https://lore.kernel.org/r/20250718-restricted-pointers-ne= t-v4-0-4baa64e40658@linutronix.de >=20 Thanks for fixing these up! Reviewed-by: Jacob Keller --------------3RVlkU3S061k0nbj06nuUFbK-- --------------8wEi0LTIWZ9RVg0DJHSInh7j Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature.asc" -----BEGIN PGP SIGNATURE----- wnsEABYIACMWIQQgQFSp1zOQVirsQx5qll0+bw8o6AUCaJqD5QUDAAAAAAAKCRBqll0+bw8o6M2Q APwII677+PCewpdBui2LFX0BKIXw3ghN/I1ydAUk47uyzAD9F3C30ZK9k2n2HXrwZvz06/OEyrgD XpgSfpQMfwOQ8Q4= =js0V -----END PGP SIGNATURE----- --------------8wEi0LTIWZ9RVg0DJHSInh7j--