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pci_dev_resource_resize_attr(n) macro is invoked for six resources,
creating a large footprint function for each resource.
Rework the macro to only create a function that calls a helper function so
the compiler can decide if it warrants to inline the function or not.
With x86_64 defconfig, this saves roughly 2.5kB:
$ scripts/bloat-o-meter drivers/pci/pci-sysfs.o{.old,.new}
add/remove: 1/0 grow/shrink: 0/6 up/down: 512/-2934 (-2422)
Function old new delta
__resource_resize_store - 512 +512
resource5_resize_store 503 14 -489
resource4_resize_store 503 14 -489
resource3_resize_store 503 14 -489
resource2_resize_store 503 14 -489
resource1_resize_store 503 14 -489
resource0_resize_store 500 11 -489
Total: Before=13399, After=10977, chg -18.08%
(The compiler seemingly chose to still inline __resource_resize_show()
which is fine, those functions are not very complex/large.)
Link: https://lore.kernel.org/r/20240222114607.1837-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
f6c7399983