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Let's introduce a common library file for the physmap show function duplicated between three different keyboard drivers. This largely copies the code from cros_ec_keyb.c which has the most recent version of the show function, while using the vivaldi_data struct from the hid-vivaldi driver. This saves a small amount of space in an allyesconfig build. $ ./scripts/bloat-o-meter vmlinux.before vmlinux.after add/remove: 3/0 grow/shrink: 2/3 up/down: 412/-720 (-308) Function old new delta vivaldi_function_row_physmap_show - 292 +292 _sub_I_65535_1 1057564 1057616 +52 _sub_D_65535_0 1057564 1057616 +52 e843419@49f2_00062737_9b04 - 8 +8 e843419@20f6_0002a34d_35bc - 8 +8 atkbd_parse_fwnode_data 480 472 -8 atkbd_do_show_function_row_physmap 316 76 -240 function_row_physmap_show 620 148 -472 Total: Before=285581925, After=285581617, chg -0.00% Signed-off-by: Stephen Boyd <swboyd@chromium.org> Tested-by: Stephen Boyd <swboyd@chromium.org> # coachz, wormdingler Link: https://lore.kernel.org/r/20220228075446.466016-3-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
39 lines
1,000 B
C
39 lines
1,000 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Helpers for ChromeOS Vivaldi keyboard function row mapping
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*
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* Copyright (C) 2022 Google, Inc
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*/
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#include <linux/export.h>
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#include <linux/input/vivaldi-fmap.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/types.h>
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/**
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* vivaldi_function_row_physmap_show - Print vivaldi function row physmap attribute
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* @data: The vivaldi function row map
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* @buf: Buffer to print the function row phsymap to
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*/
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ssize_t vivaldi_function_row_physmap_show(const struct vivaldi_data *data,
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char *buf)
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{
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ssize_t size = 0;
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int i;
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const u32 *physmap = data->function_row_physmap;
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if (!data->num_function_row_keys)
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return 0;
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for (i = 0; i < data->num_function_row_keys; i++)
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size += scnprintf(buf + size, PAGE_SIZE - size,
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"%s%02X", size ? " " : "", physmap[i]);
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if (size)
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size += scnprintf(buf + size, PAGE_SIZE - size, "\n");
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return size;
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}
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EXPORT_SYMBOL_GPL(vivaldi_function_row_physmap_show);
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MODULE_LICENSE("GPL");
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