All other calls to allocate memory seem to make some noise already, with the exception of two calls (for gop, uga) in the setup_graphics path.
The purpose is to be noisy on worrysome errors immediately. > commit fb86b2440de0ec10fe0272eb19d262ae7a01adb8 > Author: Ulf Winkelvos <[email protected]> > Date: Thu Jul 10 02:12:41 2014 +0200 > > x86/efi: Add better error logging to EFI boot stub introduces printing false alarms for lots of hardware. Rather than playing Whack a Mole with non-fatal exit conditions, try the other way round. This is per Matt Fleming's suggestion: > Where I think we could improve things > is by adding efi_printk() message in certain error paths. Clearly, not > all error paths need such messages, e.g. the EFI_INVALID_PARAMETER path > you highlighted above, but it makes sense for memory allocation and PCI > read failures. http://article.gmane.org/gmane.linux.kernel.efi/4628 After this, the status check on the setup_efi_pci() function can go away again. Signed-off-by: Andre Müller <[email protected]> --- arch/x86/boot/compressed/eboot.c | 29 ++++++++++++++++++++++------- 1 file changed, 22 insertions(+), 7 deletions(-) diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c index f277184..f296ee9 100644 --- a/arch/x86/boot/compressed/eboot.c +++ b/arch/x86/boot/compressed/eboot.c @@ -323,8 +323,10 @@ __setup_efi_pci32(efi_pci_io_protocol_32 *pci, struct pci_setup_rom **__rom) size = pci->romsize + sizeof(*rom); status = efi_call_early(allocate_pool, EFI_LOADER_DATA, size, &rom); - if (status != EFI_SUCCESS) + if (status != EFI_SUCCESS) { + efi_printk(sys_table, "Failed to alloc mem for rom\n"); return status; + } memset(rom, 0, sizeof(*rom)); @@ -337,14 +339,18 @@ __setup_efi_pci32(efi_pci_io_protocol_32 *pci, struct pci_setup_rom **__rom) status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16, PCI_VENDOR_ID, 1, &(rom->vendor)); - if (status != EFI_SUCCESS) + if (status != EFI_SUCCESS) { + efi_printk(sys_table, "Failed to read rom->vendor\n"); goto free_struct; + } status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16, PCI_DEVICE_ID, 1, &(rom->devid)); - if (status != EFI_SUCCESS) + if (status != EFI_SUCCESS) { + efi_printk(sys_table, "Failed to read rom->devid\n"); goto free_struct; + } status = efi_early->call(pci->get_location, pci, &(rom->segment), &(rom->bus), &(rom->device), &(rom->function)); @@ -427,8 +433,10 @@ __setup_efi_pci64(efi_pci_io_protocol_64 *pci, struct pci_setup_rom **__rom) size = pci->romsize + sizeof(*rom); status = efi_call_early(allocate_pool, EFI_LOADER_DATA, size, &rom); - if (status != EFI_SUCCESS) + if (status != EFI_SUCCESS) { + efi_printk(sys_table, "Failed to alloc mem for rom\n"); return status; + } rom->data.type = SETUP_PCI; rom->data.len = size - sizeof(struct setup_data); @@ -439,14 +447,18 @@ __setup_efi_pci64(efi_pci_io_protocol_64 *pci, struct pci_setup_rom **__rom) status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16, PCI_VENDOR_ID, 1, &(rom->vendor)); - if (status != EFI_SUCCESS) + if (status != EFI_SUCCESS) { + efi_printk(sys_table, "Failed to read rom->vendor\n"); goto free_struct; + } status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16, PCI_DEVICE_ID, 1, &(rom->devid)); - if (status != EFI_SUCCESS) + if (status != EFI_SUCCESS) { + efi_printk(sys_table, "Failed to read rom->devid\n"); goto free_struct; + } status = efi_early->call(pci->get_location, pci, &(rom->segment), &(rom->bus), &(rom->device), &(rom->function)); @@ -526,8 +538,10 @@ static efi_status_t setup_efi_pci(struct boot_params *params) EFI_LOADER_DATA, size, (void **)&pci_handle); - if (status != EFI_SUCCESS) + if (status != EFI_SUCCESS) { + efi_printk(sys_table, "Failed to alloc mem for pci_handle\n"); return status; + } status = efi_call_early(locate_handle, EFI_LOCATE_BY_PROTOCOL, &pci_proto, -- 1.8.5.5 -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
