[Patch v2 2/2] kexec: Enable zstd in kexec decompression paths

[Simon Horman]

[Dropped arb at kernel.org: mail.kernel.org refuses to accept my email otherwise]

On Thu, Dec 12, 2024 at 03:13:25PM -0600, Jeremy Linton wrote:
> The kexec decompression routines support detecting zlib or lzma
> compressed images. Lets add the ability to automatically decompress
> zstd ones as well. The zstd attempt is made after gzip because its
> fairly inexpensive relative lzma, and gzip remains a popular option.
> 
> Signed-off-by: Jeremy Linton <jeremy.linton at arm.com>
> Acked-by: Pingfan Liu <piliu at redhat.com>

Thanks, applied.

When doing so I removed the trailing whitespace which I have noted below.

...

> diff --git a/kexec/kexec.c b/kexec/kexec.c

...

> @@ -639,9 +640,12 @@ char *slurp_decompress_file(const char *filename, off_t *r_size)
>  
>  	kernel_buf = zlib_decompress_file(filename, r_size);
>  	if (!kernel_buf) {
> -		kernel_buf = lzma_decompress_file(filename, r_size);
> -		if (!kernel_buf)
> -			return slurp_file(filename, r_size);
> +	        kernel_buf = zstd_decompress_file(filename, r_size);	        

Trailing whitespace on the line above.

> +		if (!kernel_buf) {
> +                        kernel_buf = lzma_decompress_file(filename, r_size);
> +			if (!kernel_buf)
> +				return slurp_file(filename, r_size);
> +		}
>  	}
>  	return kernel_buf;
>  }
> -- 
> 2.47.0
>