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From: Jakub Kicinski <kuba@kernel.org>
To: Jacob Keller <jacob.e.keller@intel.com>
Cc: Vladimir Oltean <olteanv@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Eric Dumazet <edumazet@google.com>,
	Paolo Abeni <pabeni@redhat.com>,
	Tony Nguyen <anthony.l.nguyen@intel.com>,
	Przemek Kitszel <przemyslaw.kitszel@intel.com>,
	Masahiro Yamada <masahiroy@kernel.org>,
	linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
	Vladimir Oltean <vladimir.oltean@nxp.com>
Subject: Re: [PATCH net-next v2 3/9] lib: packing: add pack_fields() and unpack_fields()
Date: Sun, 3 Nov 2024 10:31:42 -0800	[thread overview]
Message-ID: <20241103103142.4ba70d58@kernel.org> (raw)
In-Reply-To: <20241025-packing-pack-fields-and-ice-implementation-v2-3-734776c88e40@intel.com>

On Fri, 25 Oct 2024 17:04:55 -0700 Jacob Keller wrote:
> +ifdef CONFIG_PACKING_CHECK_FIELDS_1
> +HOSTCFLAGS_lib/gen_packing_checks.o += -DPACKING_CHECK_FIELDS_1
> +endif
> +ifdef CONFIG_PACKING_CHECK_FIELDS_2
> +HOSTCFLAGS_lib/gen_packing_checks.o += -DPACKING_CHECK_FIELDS_2
> +endif
[...]
> +ifdef CONFIG_PACKING_CHECK_FIELDS_49
> +HOSTCFLAGS_lib/gen_packing_checks.o += -DPACKING_CHECK_FIELDS_49
> +endif
> +ifdef CONFIG_PACKING_CHECK_FIELDS_50
> +HOSTCFLAGS_lib/gen_packing_checks.o += -DPACKING_CHECK_FIELDS_50

This series is marked as Not Applicable in PW. Not sure why.

I can't bring myself to revive it, tho, this isn't pretty. 
It'd be one thing to do the codegen and the ugly copy / paste
50 times in the lib/ but all drivers have to select all field 
counts they use..

Since all you want is compile time checking and logic is quite
well constrained - can we put the field definitions in a separate
ro section and make modpost validate them?

Also Documentation needs to be extended with basic use examples.

  reply	other threads:[~2024-11-03 18:31 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-10-26  0:04 [PATCH net-next v2 0/9] lib: packing: introduce and use (un)pack_fields Jacob Keller
2024-10-26  0:04 ` [PATCH net-next v2 1/9] lib: packing: create __pack() and __unpack() variants without error checking Jacob Keller
2024-10-26  0:04 ` [PATCH net-next v2 2/9] lib: packing: demote truncation error in pack() to a warning in __pack() Jacob Keller
2024-10-26  0:04 ` [PATCH net-next v2 3/9] lib: packing: add pack_fields() and unpack_fields() Jacob Keller
2024-11-03 18:31   ` Jakub Kicinski [this message]
2024-11-04 19:06     ` Jacob Keller
2024-10-26  0:04 ` [PATCH net-next v2 4/9] ice: remove int_q_state from ice_tlan_ctx Jacob Keller
2024-10-29 14:36   ` Daniel Machon
2024-10-26  0:04 ` [PATCH net-next v2 5/9] ice: use structures to keep track of queue context size Jacob Keller
2024-10-29 14:42   ` Daniel Machon
2024-10-26  0:04 ` [PATCH net-next v2 6/9] ice: use <linux/packing.h> for Tx and Rx queue context data Jacob Keller
2024-10-29 14:50   ` Daniel Machon
2024-10-29 22:09     ` Jacob Keller
2024-10-29 23:32       ` Jacob Keller
2024-10-30 11:19         ` Dan Carpenter
2024-10-30 20:34           ` Jacob Keller
2024-10-31  7:46             ` Dan Carpenter
2024-11-07 17:32               ` Jacob Keller
2024-10-26  0:04 ` [PATCH net-next v2 7/9] ice: reduce size of queue context fields Jacob Keller
2024-10-26  0:05 ` [PATCH net-next v2 8/9] ice: move prefetch enable to ice_setup_rx_ctx Jacob Keller
2024-10-26  0:05 ` [PATCH net-next v2 9/9] ice: cleanup Rx queue context programming functions Jacob Keller
2024-10-29 18:28 ` [PATCH net-next v2 0/9] lib: packing: introduce and use (un)pack_fields Vladimir Oltean
2024-10-31  9:30 ` Daniel Machon

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