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efi_loader: Change efi_dp_from_mem() to use size

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All call sites are using size rather than end addresses,
so instead - as previously done - calculating an end address
everywhere, just modify the function to use size and internally
calculate the end address

Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Cc: Patrick Wildt <pwildt@google.com>
Signed-off-by: Moritz Fischer <moritzf@google.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Moritz Fischer
2024-11-04 01:49:34 +00:00
committed by Heinrich Schuchardt
parent ac425307f7
commit 0fd16c31cf
3 changed files with 4 additions and 6 deletions
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7
lib/efi_loader/efi_device_path.c
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@@ -977,7 +977,7 @@ struct efi_device_path __maybe_unused *efi_dp_from_eth(void)
/* Construct a device-path for memory-mapped image */
struct efi_device_path *efi_dp_from_mem(uint32_t memory_type,
uint64_t start_address,
uint64_t end_address)
size_t size)
{
struct efi_device_path_memory *mdp;
void *buf, *start;
@@ -992,7 +992,7 @@ struct efi_device_path *efi_dp_from_mem(uint32_t memory_type,
mdp->dp.length = sizeof(*mdp);
mdp->memory_type = memory_type;
mdp->start_address = start_address;
mdp->end_address = end_address;
mdp->end_address = start_address + size;
buf = &mdp[1];
*((struct efi_device_path *)buf) = END;
@@ -1073,8 +1073,7 @@ efi_status_t efi_dp_from_name(const char *dev, const char *devnr,
efi_get_image_parameters(&image_addr, &image_size);
dp = efi_dp_from_mem(EFI_RESERVED_MEMORY_TYPE,
(uintptr_t)image_addr,
(uintptr_t)image_addr + image_size);
(uintptr_t)image_addr, image_size);
} else if (IS_ENABLED(CONFIG_NETDEVICES) && !strcmp(dev, "Net")) {
dp = efi_dp_from_eth();
} else if (!strcmp(dev, "Uart")) {