From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Kees Cook <keescook@chromium.org>
Cc: Jakub Kicinski <kuba@kernel.org>, Vinod Koul <vkoul@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Mark Brown <broonie@kernel.org>,
linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org,
linux-spi@vger.kernel.org, netdev@vger.kernel.org,
linux-hardening@vger.kernel.org,
Jonathan Cameron <jic23@kernel.org>,
Lars-Peter Clausen <lars@metafoo.de>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>
Subject: Re: [PATCH v4 7/8] net-device: Use new helpers from overflow.h in netdevice APIs
Date: Thu, 29 Feb 2024 12:54:31 +0200 [thread overview]
Message-ID: <ZeBiZ_aulsAqP83c@smile.fi.intel.com> (raw)
In-Reply-To: <202402281554.C1CEEF744@keescook>
On Wed, Feb 28, 2024 at 04:01:49PM -0800, Kees Cook wrote:
> On Wed, Feb 28, 2024 at 02:41:48PM -0800, Jakub Kicinski wrote:
> > On Wed, 28 Feb 2024 13:46:10 -0800 Kees Cook wrote:
...
> But I still like the idea -- Gustavo has been solving these cases with
> having two structs, e.g.:
>
> struct net_device {
> ...unchanged...
> };
>
> struct net_device_alloc {
> struct net_device dev;
> u32 priv_size;
> u8 priv_data[] __counted_by(priv_size) __aligned(NETDEV_ALIGN);
> };
>
> And internals can use struct net_device_alloc...
I just realized that I made same approach in
f6d7f050e258 ("spi: Don't use flexible array in struct spi_message definition")
75e308ffc4f0 ("spi: Use struct_size() helper")
--
With Best Regards,
Andy Shevchenko
WARNING: multiple messages have this Message-ID (diff)
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Kees Cook <keescook@chromium.org>
Cc: Jakub Kicinski <kuba@kernel.org>, Vinod Koul <vkoul@kernel.org>,
Linus Walleij <linus.walleij@linaro.org>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
Mark Brown <broonie@kernel.org>,
linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org,
linux-spi@vger.kernel.org, netdev@vger.kernel.org,
linux-hardening@vger.kernel.org,
Jonathan Cameron <jic23@kernel.org>,
Lars-Peter Clausen <lars@metafoo.de>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>
Subject: Re: [PATCH v4 7/8] net-device: Use new helpers from overflow.h in netdevice APIs
Date: Thu, 29 Feb 2024 12:54:31 +0200 [thread overview]
Message-ID: <ZeBiZ_aulsAqP83c@smile.fi.intel.com> (raw)
In-Reply-To: <202402281554.C1CEEF744@keescook>
On Wed, Feb 28, 2024 at 04:01:49PM -0800, Kees Cook wrote:
> On Wed, Feb 28, 2024 at 02:41:48PM -0800, Jakub Kicinski wrote:
> > On Wed, 28 Feb 2024 13:46:10 -0800 Kees Cook wrote:
...
> But I still like the idea -- Gustavo has been solving these cases with
> having two structs, e.g.:
>
> struct net_device {
> ...unchanged...
> };
>
> struct net_device_alloc {
> struct net_device dev;
> u32 priv_size;
> u8 priv_data[] __counted_by(priv_size) __aligned(NETDEV_ALIGN);
> };
>
> And internals can use struct net_device_alloc...
I just realized that I made same approach in
f6d7f050e258 ("spi: Don't use flexible array in struct spi_message definition")
75e308ffc4f0 ("spi: Use struct_size() helper")
--
With Best Regards,
Andy Shevchenko
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-02-29 10:54 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-28 20:41 [PATCH v4 0/8] iio: core: New macros and making use of them Andy Shevchenko
2024-02-28 20:41 ` Andy Shevchenko
2024-02-28 20:41 ` [PATCH v4 1/8] overflow: Use POD in check_shl_overflow() Andy Shevchenko
2024-02-28 20:41 ` Andy Shevchenko
2024-02-28 21:33 ` Kees Cook
2024-02-28 21:33 ` Kees Cook
2024-02-29 10:59 ` Andy Shevchenko
2024-02-29 10:59 ` Andy Shevchenko
2024-02-29 18:30 ` (subset) " Kees Cook
2024-02-29 18:30 ` Kees Cook
2024-02-28 20:41 ` [PATCH v4 2/8] overflow: Add struct_size_with_data() and struct_data_pointer() helpers Andy Shevchenko
2024-02-28 20:41 ` Andy Shevchenko
2024-02-28 21:37 ` Kees Cook
2024-02-28 21:37 ` Kees Cook
2024-02-28 21:51 ` Andy Shevchenko
2024-02-28 21:51 ` Andy Shevchenko
2024-02-28 20:41 ` [PATCH v4 3/8] iio: core: NULLify private pointer when there is no private data Andy Shevchenko
2024-02-28 20:41 ` Andy Shevchenko
2024-02-28 21:06 ` David Lechner
2024-02-28 21:06 ` David Lechner
2024-02-28 21:36 ` Andy Shevchenko
2024-02-28 21:36 ` Andy Shevchenko
2024-03-03 12:46 ` Jonathan Cameron
2024-03-03 12:46 ` Jonathan Cameron
2024-02-28 20:41 ` [PATCH v4 4/8] iio: core: Calculate alloc_size only once in iio_device_alloc() Andy Shevchenko
2024-02-28 20:41 ` Andy Shevchenko
2024-02-28 20:57 ` David Lechner
2024-02-28 20:57 ` David Lechner
2024-02-28 21:09 ` Andy Shevchenko
2024-02-28 21:09 ` Andy Shevchenko
2024-02-28 20:41 ` [PATCH v4 5/8] iio: core: Use new helpers from overflow.h " Andy Shevchenko
2024-02-28 20:41 ` Andy Shevchenko
2024-02-29 15:29 ` Nuno Sá
2024-02-29 15:29 ` Nuno Sá
2024-03-03 13:09 ` Jonathan Cameron
2024-03-03 13:09 ` Jonathan Cameron
2024-02-28 20:41 ` [PATCH v4 6/8] spi: Use new helpers from overflow.h in __spi_alloc_controller() Andy Shevchenko
2024-02-28 20:41 ` Andy Shevchenko
2024-02-28 21:00 ` Mark Brown
2024-02-28 21:00 ` Mark Brown
2024-02-28 20:41 ` [PATCH v4 7/8] net-device: Use new helpers from overflow.h in netdevice APIs Andy Shevchenko
2024-02-28 20:41 ` Andy Shevchenko
2024-02-28 21:46 ` Kees Cook
2024-02-28 21:46 ` Kees Cook
2024-02-28 21:53 ` Andy Shevchenko
2024-02-28 21:53 ` Andy Shevchenko
2024-02-28 22:41 ` Jakub Kicinski
2024-02-28 22:41 ` Jakub Kicinski
2024-02-29 0:01 ` Kees Cook
2024-02-29 0:01 ` Kees Cook
2024-02-29 0:49 ` Gustavo A. R. Silva
2024-02-29 0:49 ` Gustavo A. R. Silva
2024-02-29 0:57 ` Jakub Kicinski
2024-02-29 0:57 ` Jakub Kicinski
2024-02-29 1:03 ` Gustavo A. R. Silva
2024-02-29 1:03 ` Gustavo A. R. Silva
2024-02-29 1:15 ` Jakub Kicinski
2024-02-29 1:15 ` Jakub Kicinski
2024-02-29 1:36 ` Gustavo A. R. Silva
2024-02-29 1:36 ` Gustavo A. R. Silva
2024-02-29 0:56 ` Jakub Kicinski
2024-02-29 0:56 ` Jakub Kicinski
2024-02-29 19:08 ` Kees Cook
2024-02-29 19:08 ` Kees Cook
2024-02-29 19:37 ` Jakub Kicinski
2024-02-29 19:37 ` Jakub Kicinski
2024-02-29 21:31 ` Kees Cook
2024-02-29 21:31 ` Kees Cook
2024-02-29 10:54 ` Andy Shevchenko [this message]
2024-02-29 10:54 ` Andy Shevchenko
2024-02-28 20:41 ` [PATCH v4 8/8] dmaengine: ste_dma40: Use new helpers from overflow.h Andy Shevchenko
2024-02-28 20:41 ` Andy Shevchenko
2024-02-29 14:14 ` Linus Walleij
2024-02-29 14:14 ` Linus Walleij
2024-02-29 14:53 ` Andy Shevchenko
2024-02-29 14:53 ` Andy Shevchenko
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