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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2580
Ovmf build failed on Windows with VS2017 tool chain.
The error message like:
OvmfPkg\LinuxInitrdDynamicShellCommand\LinuxInitr
dDynamicShellCommand.c(199): error C2220: warning treated as error -
no 'object' file generated
OvmfPkg\LinuxInitrdDynamicShellCommand\LinuxInitrdDynamicShellCommand.c(199):
warning C4244: '=': conversion from 'UINT64' to 'UINTN',
possible loss of data
This patch is to cast UINT64 type to UINTN type
when doing the variable assignment.
Signed-off-by: Bob Feng <bob.c.feng@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
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The Linaro CI reports:
OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c:132:7:
error: variable 'Status' is used uninitialized whenever 'if' condition is
false [-Werror,-Wsometimes-uninitialized]
if (mInitrdLoadFile2Handle != NULL) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c:141:10:
note: uninitialized use occurs here
return Status;
^~~~~~
OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c:132:3:
note: remove the 'if' if its condition is always true
if (mInitrdLoadFile2Handle != NULL) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
OvmfPkg/LinuxInitrdDynamicShellCommand/LinuxInitrdDynamicShellCommand.c:130:23:
note: initialize the variable 'Status' to silence this warning
EFI_STATUS Status;
^
= 0
Fix this by pulling the return of Status into the conditional block where
it is assigned, and return EFI_SUCCESS otherwise.
Fixes: 2632178bc683f1f28f9dbe269f85d6b26b1800de
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
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Before taking any actions, check if an instance of the LoadFile2 exists
already on the Linux initrd media GUID device path, and whether it was
provided by this command. If so, abort, since no duplicate instances of
the device path should exist.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2564
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
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Add a new 'initrd' command to the UEFI Shell that allows any file that is
accessible to the shell to be registered as the initrd that is returned
when Linux's EFI stub loader invokes the LoadFile2 protocol on its special
vendor media device path.
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=2564
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
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