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| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2018-05-27 16:45:09 +0200 |
|---|---|---|
| committer | Alexander Graf <agraf@suse.de> | 2018-06-03 15:27:21 +0200 |
| commit | 3282614081ff3dcacd79a870475b332cbee3ff28 (patch) | |
| tree | aaa3d866af37d2a7b771d62c775a041be805a7f7 /lib | |
| parent | e09159c86786929a728e3119726b10332226e6ea (diff) | |
| download | u-boot-3282614081ff3dcacd79a870475b332cbee3ff28.zip u-boot-3282614081ff3dcacd79a870475b332cbee3ff28.tar.gz u-boot-3282614081ff3dcacd79a870475b332cbee3ff28.tar.bz2 | |
efi_loader: efi_mem_carve_out should return s64
efi_mem_carve_out() is used to remove memory pages from a mapping.
As the number of pages to be removed is a 64bit type the return type
should be 64bit too.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/efi_loader/efi_memory.c | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/lib/efi_loader/efi_memory.c b/lib/efi_loader/efi_memory.c index a4515c8..ec66af9 100644 --- a/lib/efi_loader/efi_memory.c +++ b/lib/efi_loader/efi_memory.c @@ -68,23 +68,27 @@ static void efi_mem_sort(void) list_sort(NULL, &efi_mem, efi_mem_cmp); } -/* - * Unmaps all memory occupied by the carve_desc region from the - * list entry pointed to by map. +/** efi_mem_carve_out - unmap memory region + * + * @map: memory map + * @carve_desc: memory region to unmap + * @overlap_only_ram: the carved out region may only overlap RAM + * Return Value: the number of overlapping pages which have been + * removed from the map, + * EFI_CARVE_NO_OVERLAP, if the regions don't overlap, + * EFI_CARVE_OVERLAPS_NONRAM, if the carve and map overlap, + * and the map contains anything but free ram + * (only when overlap_only_ram is true), + * EFI_CARVE_LOOP_AGAIN, if the mapping list should be + * traversed again, as it has been altered. * - * Returns EFI_CARVE_NO_OVERLAP if the regions don't overlap. - * Returns EFI_CARVE_OVERLAPS_NONRAM if the carve and map overlap, - * and the map contains anything but free ram. - * (only when overlap_only_ram is true) - * Returns EFI_CARVE_LOOP_AGAIN if the mapping list should be traversed - * again, as it has been altered - * Returns the number of overlapping pages. The pages are removed from - * the mapping list. + * Unmaps all memory occupied by the carve_desc region from the list entry + * pointed to by map. * * In case of EFI_CARVE_OVERLAPS_NONRAM it is the callers responsibility - * to readd the already carved out pages to the mapping. + * to re-add the already carved out pages to the mapping. */ -static int efi_mem_carve_out(struct efi_mem_list *map, +static s64 efi_mem_carve_out(struct efi_mem_list *map, struct efi_mem_desc *carve_desc, bool overlap_only_ram) { @@ -183,7 +187,7 @@ uint64_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type, carve_again = false; list_for_each(lhandle, &efi_mem) { struct efi_mem_list *lmem; - int r; + s64 r; lmem = list_entry(lhandle, struct efi_mem_list, link); r = efi_mem_carve_out(lmem, &newlist->desc, |