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Date: Wed, 14 Jan 2015 08:55:49 +0000
From: "Zheng, Lv" <lv.zheng@...el.com>
To: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
"Moore, Robert" <robert.moore@...el.com>
CC: "Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
Len Brown <lenb@...nel.org>,
"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
"devel@...ica.org" <devel@...ica.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH] acpica: utpredef: Remove some unused functions
Hi, Rickard
The functions below seem already marked by "ACPI_ASL_COMPILER || ACPI_HELP_APP".
How did you detect them as used functions?
Thanks
-Lv
> -----Original Message-----
> From: Rickard Strandqvist [mailto:rickard_strandqvist@...ctrumdigital.se]
> Sent: Sunday, January 04, 2015 11:23 PM
> To: Moore, Robert; Zheng, Lv
> Cc: Rickard Strandqvist; Wysocki, Rafael J; Len Brown; linux-acpi@...r.kernel.org; devel@...ica.org; linux-kernel@...r.kernel.org
> Subject: [PATCH] acpica: utpredef: Remove some unused functions
>
> Removes some functions that are not used anywhere:
> acpi_ut_get_resource_bit_width() acpi_ut_display_predefined_method() acpi_ut_match_resource_name()
>
> This was partially found by using a static code analysis program called cppcheck.
>
> Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
> ---
> drivers/acpi/acpica/acutils.h | 9 ---
> drivers/acpi/acpica/utpredef.c | 134 ----------------------------------------
> 2 files changed, 143 deletions(-)
>
> diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
> index 486d342..9b3fab1 100644
> --- a/drivers/acpi/acpica/acutils.h
> +++ b/drivers/acpi/acpica/acutils.h
> @@ -502,17 +502,8 @@ const union acpi_predefined_info *acpi_ut_get_next_predefined_method(const union
>
> const union acpi_predefined_info *acpi_ut_match_predefined_method(char *name);
>
> -const union acpi_predefined_info *acpi_ut_match_resource_name(char *name);
> -
> -void
> -acpi_ut_display_predefined_method(char *buffer,
> - const union acpi_predefined_info *this_name,
> - u8 multi_line);
> -
> void acpi_ut_get_expected_return_types(char *buffer, u32 expected_btypes);
>
> -u32 acpi_ut_get_resource_bit_width(char *buffer, u16 types);
> -
> /*
> * utstate - Generic state creation/cache routines
> */
> diff --git a/drivers/acpi/acpica/utpredef.c b/drivers/acpi/acpica/utpredef.c
> index db30caf..f1ff33c 100644
> --- a/drivers/acpi/acpica/utpredef.c
> +++ b/drivers/acpi/acpica/utpredef.c
> @@ -209,105 +209,6 @@ static const char *ut_resource_type_names[] = {
>
> /*******************************************************************************
> *
> - * FUNCTION: acpi_ut_match_resource_name
> - *
> - * PARAMETERS: name - Name to find
> - *
> - * RETURN: Pointer to entry in the resource table. NULL indicates not
> - * found.
> - *
> - * DESCRIPTION: Check an object name against the predefined resource
> - * descriptor object list.
> - *
> - ******************************************************************************/
> -
> -const union acpi_predefined_info *acpi_ut_match_resource_name(char *name)
> -{
> - const union acpi_predefined_info *this_name;
> -
> - /* Quick check for a predefined name, first character must be underscore */
> -
> - if (name[0] != '_') {
> - return (NULL);
> - }
> -
> - /* Search info table for a predefined method/object name */
> -
> - this_name = acpi_gbl_resource_names;
> - while (this_name->info.name[0]) {
> - if (ACPI_COMPARE_NAME(name, this_name->info.name)) {
> - return (this_name);
> - }
> -
> - this_name++;
> - }
> -
> - return (NULL); /* Not found */
> -}
> -
> -/*******************************************************************************
> - *
> - * FUNCTION: acpi_ut_display_predefined_method
> - *
> - * PARAMETERS: buffer - Scratch buffer for this function
> - * this_name - Entry in the predefined method/name table
> - * multi_line - TRUE if output should be on >1 line
> - *
> - * RETURN: None
> - *
> - * DESCRIPTION: Display information about a predefined method. Number and
> - * type of the input arguments, and expected type(s) for the
> - * return value, if any.
> - *
> - ******************************************************************************/
> -
> -void
> -acpi_ut_display_predefined_method(char *buffer,
> - const union acpi_predefined_info *this_name,
> - u8 multi_line)
> -{
> - u32 arg_count;
> -
> - /*
> - * Get the argument count and the string buffer
> - * containing all argument types
> - */
> - arg_count = acpi_ut_get_argument_types(buffer,
> - this_name->info.argument_list);
> -
> - if (multi_line) {
> - printf(" ");
> - }
> -
> - printf("%4.4s Requires %s%u argument%s",
> - this_name->info.name,
> - (this_name->info.argument_list & ARG_COUNT_IS_MINIMUM) ?
> - "(at least) " : "", arg_count, arg_count != 1 ? "s" : "");
> -
> - /* Display the types for any arguments */
> -
> - if (arg_count > 0) {
> - printf(" (%s)", buffer);
> - }
> -
> - if (multi_line) {
> - printf("\n ");
> - }
> -
> - /* Get the return value type(s) allowed */
> -
> - if (this_name->info.expected_btypes) {
> - acpi_ut_get_expected_return_types(buffer,
> - this_name->info.
> - expected_btypes);
> - printf(" Return value types: %s\n", buffer);
> - } else {
> - printf(" No return value\n");
> - }
> -}
> -
> -/*******************************************************************************
> - *
> * FUNCTION: acpi_ut_get_argument_types
> *
> * PARAMETERS: buffer - Where to return the formatted types
> @@ -361,39 +262,4 @@ static u32 acpi_ut_get_argument_types(char *buffer, u16 argument_types)
> return (arg_count);
> }
>
> -/*******************************************************************************
> - *
> - * FUNCTION: acpi_ut_get_resource_bit_width
> - *
> - * PARAMETERS: buffer - Where the formatted string is returned
> - * types - Bitfield of expected data types
> - *
> - * RETURN: Count of return types. Formatted string in Buffer.
> - *
> - * DESCRIPTION: Format the resource bit widths into a printable string.
> - *
> - ******************************************************************************/
> -
> -u32 acpi_ut_get_resource_bit_width(char *buffer, u16 types)
> -{
> - u32 i;
> - u16 sub_index;
> - u32 found;
> -
> - *buffer = 0;
> - sub_index = 1;
> - found = 0;
> -
> - for (i = 0; i < NUM_RESOURCE_WIDTHS; i++) {
> - if (types & 1) {
> - strcat(buffer, &(ut_resource_type_names[i][sub_index]));
> - sub_index = 0;
> - found++;
> - }
> -
> - types >>= 1;
> - }
> -
> - return (found);
> -}
> #endif
> --
> 1.7.10.4
--
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