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Bo-Cun Chen ffb0c5c4cf net: ethernet: mtk_eth_soc: convert cap_bit in mtk_eth_muxc struct to u64 
With commit 51a4df60db ("net: ethernet: mtk_eth_soc: convert caps in
mtk_soc_data struct to u64") the capabilities bitfield was converted to
a 64-bit value, but a cap_bit in struct mtk_eth_muxc which is used to
store a full bitfield (rather than the bit number, as the name would
suggest) still holds only a 32-bit value.

Change the type of cap_bit to u64 in order to avoid truncating the
bitfield which results in path selection to not work with capabilities
above the 32-bit limit.

The values currently stored in the cap_bit field are
MTK_ETH_MUX_GDM1_TO_GMAC1_ESW:
 BIT_ULL(18) | BIT_ULL(5)

MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY:
 BIT_ULL(19) | BIT_ULL(5) | BIT_ULL(6)

MTK_ETH_MUX_U3_GMAC2_TO_QPHY:
 BIT_ULL(20) | BIT_ULL(5) | BIT_ULL(6)

MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII:
 BIT_ULL(20) | BIT_ULL(5) | BIT_ULL(7)

MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII:
 BIT_ULL(21) | BIT_ULL(5)

While all those values are currently still within 32-bit boundaries,
the addition of new capabilities of MT7988 as well as future SoC's
like MT7987 will exceed them. Also, the use of a 32-bit 'int' type to
store the result of a BIT_ULL(...) is misleading.

Signed-off-by: Bo-Cun Chen <bc-bocun.chen@mediatek.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/ded98b0d716c3203017a7a92151516ec2bf1abee.1745369249.git.daniel@makrotopia.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-04-24 17:04:08 -07:00
arch Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-04-24 11:20:52 -07:00
block vfs-6.15-rc3.fixes.2 2025-04-19 14:31:08 -07:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto crypto: scomp - Fix off-by-one bug when calculating last page 2025-04-23 09:32:57 +08:00
Documentation rxrpc: Remove deadcode 2025-04-24 17:03:45 -07:00
drivers net: ethernet: mtk_eth_soc: convert cap_bit in mtk_eth_muxc struct to u64 2025-04-24 17:04:08 -07:00
fs Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-04-24 11:20:52 -07:00
include rxrpc: Remove deadcode 2025-04-24 17:03:45 -07:00
init Kconfig: switch CONFIG_SYSFS_SYCALL default to n 2025-04-15 10:28:35 +02:00
io_uring io_uring/zcrx: fix late dma unmap for a dead dev 2025-04-18 06:12:10 -06:00
ipc treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-04-24 11:20:52 -07:00
lib hardening fixes for v6.15-rc3 2025-04-18 13:20:20 -07:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-04-24 11:20:52 -07:00
net rxrpc: Remove deadcode 2025-04-24 17:03:45 -07:00
rust rust: helpers: Add dma_alloc_attrs() and dma_free_attrs() 2025-04-15 23:06:03 +02:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-04-17 12:26:50 -07:00
scripts Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-04-24 11:20:52 -07:00
security Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-04-24 11:20:52 -07:00
sound ASoC: Fixes for v6.15 2025-04-11 15:51:19 +02:00
tools selftests: iou-zcrx: Get the page size at runtime 2025-04-24 16:29:47 -07:00
usr kbuild: hdrcheck: fix cross build with clang 2025-03-05 04:06:45 +09:00
virt ARM: 2025-04-08 13:47:55 -07:00
.clang-format clang-format: Update the ForEachMacros list for v6.15-rc1 2025-04-13 11:03:59 +02:00
.clippy.toml rust: give Clippy the minimum supported Rust version 2025-01-10 00:17:25 +01:00
.cocciconfig
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore kbuild: Create intermediate vmlinux build with relocations preserved 2025-03-17 00:29:50 +09:00
.mailmap sound fixes for 6.15-rc3 2025-04-17 10:14:51 -07:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS MAINTAINERS: update SLAB ALLOCATOR maintainers 2025-04-17 20:10:06 -07:00
Kbuild drm: ensure drm headers are self-contained and pass kernel-doc 2025-02-12 10:44:43 +02:00
Kconfig io_uring: Rename KConfig to Kconfig 2025-02-19 14:53:27 -07:00
MAINTAINERS Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-04-24 11:20:52 -07:00
Makefile Fix mis-uses of 'cc-option' for warning disablement 2025-04-23 10:08:29 -07:00
README README: Fix spelling 2024-03-18 03:36:32 -06:00

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.