stand: Remove dead store to bi_kernelname
We set this value twice: once to 0 and once to the VA that has the name of the kernel. The first store is redundant. In addition, these two stores of 0 are also redundant. Since we never set them, they will always be zero, even if we're called multiple times. This saves 21 bytes on BIOS loader. Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D36541
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@ -173,9 +173,6 @@ bi_load32(char *args, int *howtop, int *bootdevp, vm_offset_t *bip, vm_offset_t
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kernelname = getenv("kernelname");
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i386_getdev(NULL, kernelname, &kernelpath);
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bi.bi_version = BOOTINFO_VERSION;
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bi.bi_kernelname = 0; /* XXX char * -> kernel name */
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bi.bi_nfs_diskless = 0; /* struct nfs_diskless * */
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bi.bi_n_bios_used = 0; /* XXX would have to hook biosdisk driver for these */
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for (i = 0; i < N_BIOS_GEOM; i++)
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bi.bi_bios_geom[i] = bd_getbigeom(i);
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bi.bi_size = sizeof(bi);
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@ -152,9 +152,6 @@ bi_load32(char *args, int *howtop, int *bootdevp, vm_offset_t *bip, vm_offset_t
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kernelname = getenv("kernelname");
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userboot_getdev(NULL, kernelname, &kernelpath);
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bi.bi_version = BOOTINFO_VERSION;
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bi.bi_kernelname = 0; /* XXX char * -> kernel name */
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bi.bi_nfs_diskless = 0; /* struct nfs_diskless * */
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bi.bi_n_bios_used = 0; /* XXX would have to hook biosdisk driver for these */
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#if 0
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for (i = 0; i < N_BIOS_GEOM; i++)
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bi.bi_bios_geom[i] = bd_getbigeom(i);
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